UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) August 7, 2000 LOUISIANA-PACIFIC CORPORATION - -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Delaware 1-7107 93-0609074 - -------------------------------------------------------------------------------- (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 111 S. W. Fifth Avenue, Portland, Oregon 97204-3699 - -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (503) 221-0800 N/A - -------------------------------------------------------------------------------- (Former name or former address, if changed since last report)

ITEM 5. OTHER EVENTS. This Current Report on Form 8-K is being filed with the Securities and Exchange Commission by Louisiana-Pacific Corporation (the "Company") for purposes of filing, as exhibits hereto, the form of Underwriting Agreement contemplated to be entered into between the Company and the underwriters named therein and the form of First and Second Supplemental Indentures, contemplated to be entered into between the Company and Bank One Trust Company, N.A., as Trustee, in each case, in connection with the proposed sale by the Company of Senior Notes in the aggregate principal amount of $500,000,000. ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS. The following exhibits are filed herewith: 1. Form of Underwriting Agreement between Louisiana-Pacific Corporation and the underwriters named therein. 4. Form of First and Second Supplemental Indentures between Louisiana-Pacific Corporation and Bank One Trust Company, N.A., as Trustee.

SIGNATURES Pursuant to the requirements of the Securities Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. LOUISIANA-PACIFIC CORPORATION ------------------------------------------------------- (Registrant) August 7, 2000 /s/ Gary C. Wilkerson - -------------------- ------------------------------------------------------- Date Gary C. Wilkerson, Vice President and General Counsel

EXHIBIT INDEX Exhibit Number Description -------------- ----------- 1. Form of Underwriting Agreement between Louisiana-Pacific Corporation and the underwriters named therein. 4. Form of First and Second Supplemental Indentures between Louisiana-Pacific Corporation and Bank One Trust Company, N.A., as Trustee.

LOUISIANA-PACIFIC CORPORATION DEBT SECURITIES FORM OF UNDERWRITING AGREEMENT ____, 2000 Goldman, Sachs & Co. 85 Broad Street New York, New York 10004. Ladies and Gentlemen: From time to time Louisiana-Pacific Corporation, a Delaware corporation (the "Company"), proposes to enter into one or more Pricing Agreements (each a "Pricing Agreement") in the form of Annex I hereto, with such additions and deletions as the parties thereto may determine, and, subject to the terms and conditions stated herein and therein, to issue and sell to the firms named in Schedule I to the applicable Pricing Agreement (such firms constituting the "Underwriters" with respect to such Pricing Agreement and the securities specified therein) certain of its debt securities (the "Securities") specified in Schedule II to such Pricing Agreement (with respect to such Pricing Agreement, the "Designated Securities"). The terms and rights of any particular issuance of Designated Securities shall be as specified in the Pricing Agreement relating thereto and in or pursuant to the indenture (the "Indenture") identified in such Pricing Agreement. 1. Particular sales of Designated Securities may be made from time to time to the Underwriters of such Securities, for whom the firms designated as representatives of the Underwriters of such Securities in the Pricing Agreement relating thereto will act as representatives (the "Representatives"). The term "Representatives" also refers to a single firm acting as sole representative of the Underwriters and to an Underwriter or Underwriters acting without any firm being designated as its or their representative. This Underwriting Agreement shall not be construed as an obligation of the Company to sell any of the Securities or as an obligation of any of the Underwriters to purchase the Securities. The obligation of the Company to issue and sell any of the Securities and the obligation of any of the Underwriters to purchase any of the Securities shall be evidenced by the Pricing Agreement with respect to the Designated Securities specified therein. Each Pricing Agreement shall specify the aggregate principal amount of such Designated Securities, the initial public offering price of such Designated Securities, the purchase price to the Underwriters of such Designated Securities, the names of the Underwriters of such Designated Securities, the names of the Representatives of such Underwriters and the principal amount of such Designated Securities to be purchased by each Underwriter and shall set forth the date, time and manner of delivery of such Designated Securities and payment therefor. The Pricing Agreement shall also specify (to the extent not set forth in the Indenture and the registration statement and prospectus with respect thereto) the terms of such Designated Securities. A Pricing Agreement shall be in the form of an executed writing (which may be in counterparts), and may be evidenced by an exchange of telegraphic communications or any other rapid transmission device designed to produce a written record of communications transmitted. The obligations of the Underwriters under this Agreement and each Pricing Agreement shall be several and not joint.

2. The Company represents and warrants to, and agrees with, each of the Underwriters that: (a) A registration statement on Form S-3 (File No. 333-73157) (the "Initial Registration Statement") in respect of the Securities has been filed with the Securities and Exchange Commission (the "Commission"); the Initial Registration Statement and any post-effective amendment thereto, each in the form heretofore delivered or to be delivered to the Representatives without exhibits but with all documents incorporated by reference in the prospectus contained therein, have been declared effective by the Commission in such form; other than a registration statement, if any, increasing the size of the offering (a "Rule 462(b) Registration Statement"), filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended (the "Act"), which became effective upon filing, no other document with respect to the Initial Registration Statement or document incorporated by reference therein has heretofore been filed or transmitted for filing with the Commission (other than prospectuses filed pursuant to Rule 424(b) of the rules and regulations of the Commission under the Act, each in the form heretofore delivered to the Representatives); and no stop order suspending the effectiveness of the Initial Registration Statement, any post-effective amendment thereto or the Rule 462(b) Registration Statement, if any, has been issued and no proceeding for that purpose has been initiated or threatened by the Commission (any preliminary prospectus included in the Initial Registration Statement or filed with the Commission pursuant to Rule 424(a) under the Act, is hereinafter called a "Preliminary Prospectus"; the various parts of the Initial Registration Statement, any post-effective amendment thereto and the Rule 462(b) Registration Statement, if any, including all exhibits thereto and the documents incorporated by reference in the prospectus contained in the Initial Registration Statement at the time such part of the Initial Registration Statement became effective but excluding Form T-1, each as amended at the time such part of the Initial Registration Statement became effective or such part of the Rule 462(b) Registration Statement, if any, became or hereafter becomes effective, are hereinafter collectively called the "Registration Statement"; the prospectus relating to the Securities, in the form in which it has most recently been filed, or transmitted for filing, with the Commission on or prior to the date of this Agreement, is hereinafter called the "Prospectus"; any reference herein to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents as amended, if applicable, incorporated by reference therein pursuant to the applicable form under the Act, as of the date of such Preliminary Prospectus or Prospectus, as the case may be; any reference to any amendment or supplement to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents as amended, if applicable, filed after the date of such Preliminary Prospectus or Prospectus, as the case may be, under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and incorporated by reference in such Preliminary Prospectus or Prospectus, as the case may be; any reference to any amendment to the Initial Registration Statement shall be deemed to refer to and include any annual report of the Company filed pursuant to Sections 13(a) or 15(d) of the Exchange Act after the effective date of the Initial Registration Statement that is incorporated by reference in the Registration Statement; and any reference to the Prospectus as amended or supplemented shall be deemed to refer to the Prospectus as amended or supplemented in relation to the applicable Designated Securities in the form in which it is filed with the Commission pursuant to Rule 424(b) under the Act in accordance with Section 5(a) hereof, including any documents incorporated by reference therein as of the date of such filing); (b) The documents incorporated by reference in the Prospectus, as amended, when they became effective or were filed with the Commission, as the case may be (giving retroactive effect to any such amendments), conformed in all material respects to the requirements of the Act or the Exchange Act, as applicable, and the rules and regulations of the Commission thereunder, and none of such documents (as so amended, if applicable, giving retroactive effect to such amendments) contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading; and any further documents so filed and incorporated by reference in the Prospectus or any further amendment or supplement thereto, when such documents become effective or are filed with the Commission, as the case may be, will conform in all material respects to the requirements of the Act or the Exchange Act, as applicable, and the rules and

regulations of the Commission thereunder and will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading; PROVIDED, HOWEVER, that this representation and warranty shall not apply to any statements or omissions made in reliance upon and in conformity with information furnished in writing to the Company by an Underwriter of Designated Securities through the Representatives expressly for use in the Prospectus as amended or supplemented relating to such Securities; (c) The Registration Statement and the Prospectus conform, and any further amendments or supplements to the Registration Statement or the Prospectus will conform, in all material respects to the requirements of the Act and the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), and the rules and regulations of the Commission thereunder and do not and will not, as of the applicable effective date as to the Registration Statement and any amendment thereto and as of the applicable filing date as to the Prospectus and any amendment or supplement thereto, contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading; PROVIDED, HOWEVER, that this representation and warranty shall not apply to any statements or omissions made in reliance upon and in conformity with information furnished in writing to the Company by an Underwriter of Designated Securities through the Representatives expressly for use in the Prospectus as amended or supplemented relating to such Securities or to any statements in or omissions from the Statement of Eligibility of the Trustee under the Indenture; (d) Neither the Company nor any of its subsidiaries has sustained since the date of the latest audited financial statements included or incorporated by reference in the Prospectus any material loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, otherwise than as set forth or contemplated in the Prospectus as amended or supplemented; and, since the latest date as of which information is given in the Registration Statement and the Prospectus as amended or supplemented, there has not been any change in the capital stock (other than issuances and forfeitures of capital stock in connection with equity-based compensation plans of the company, issuances of stock upon the exercise, conversion or exchange of any outstanding securities of the Company that are excisable to purchase, or convertible into or exchangeable for, capital stock and purchases of capital stock pursuant to any stock repurchase program disclosed in the Prospectus as amended or supplemented) or any increase in excess of $40 million in the long-term debt of the Company or any of its subsidiaries otherwise than as set forth or contemplated in the Prospectus as amended or supplemented or any material adverse change, or any development involving a prospective material adverse change, in or affecting the general affairs, management, financial position, stockholders' equity or results of operations of the Company and its subsidiaries taken as a whole, otherwise than as set forth or contemplated in the Prospectus as amended or supplemented; (e) The Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of the jurisdiction of its incorporation, with power and authority (corporate and other) to own its properties and conduct its business as described in the Prospectus as amended or supplemented, and has been duly qualified as a foreign corporation for the transaction of business and is in good standing under the laws of each other jurisdiction in which it is required to be so qualified, except where failure to be so qualified and in good standing individually or in the aggregate would not have a material adverse effect on the current or future consolidated financial position, stockholders' equity or results of operations of the Company and its subsidiaries ("Material Adverse Effect"); and each subsidiary of the Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of its jurisdiction of incorporation, except where failure to be duly incorporated, validly existing and in good standing would not, individually or in the aggregate, have a Material Adverse Effect;

(f) The Company has an authorized capitalization as set forth in the Prospectus, as amended or supplemented, all of the issued shares of capital stock of the Company have been duly and validly authorized and issued and are fully paid and non-assessable; and all of the issued shares of capital stock of each subsidiary of the Company have been duly and validly authorized and issued, are fully paid and non-assessable and are owned directly or indirectly by the Company, free and clear of all liens, encumbrances, equities or claims (except as otherwise disclosed in the Prospectus as amended or supplemented or where, individually or in the aggregate, the failure to have been duly and validly authorized and issued, to be fully paid and non-assessable and to be owned directly or indirectly by the Company free and clear of liens, encumbrances, equities or claims would not have a Material Adverse Effect); (g) The Securities have been duly authorized, and, when the Designated Securities are issued and delivered pursuant to this Agreement and the Pricing Agreement with respect to such Designated Securities, such Designated Securities will have been duly executed, authenticated, issued and delivered and will constitute valid and legally binding obligations of the Company entitled to the benefits provided by the Indenture, which will be substantially in the form filed as an exhibit to the Registration Statement; the Indenture has been duly authorized and duly qualified under the Trust Indenture Act and, at the Time of Delivery for such Designated Securities (as defined in Section 4 hereof), the Indenture will constitute a valid and legally binding instrument, enforceable in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization and other laws of general applicability relating to or affecting creditors' rights and to general equity principles, regardless of whether such enforceability is considered in a proceeding in equity or at law; and the Indenture conforms in all material respects, and the Designated Securities will conform in all material respects, to the descriptions thereof contained in the Prospectus as amended or supplemented with respect to such Designated Securities; (h) The issue and sale of the Securities and the compliance by the Company with all of the provisions of the Securities, the Indenture, this Agreement and any Pricing Agreement, and the consummation of the transactions herein and therein contemplated will not conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, any indenture, mortgage, deed of trust, sale/leaseback agreement, loan agreement or other similar financing agreement or instrument, or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or any of its subsidiaries is subject (except for such conflicts, breaches, violations and defaults as individually or in the aggregate would not have a Material Adverse Effect), nor will such action result in any violation of the provisions of the Certificate of Incorporation or By-laws of the Company or any statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over the Company or any of its subsidiaries or any of their properties (except for such violations as individually or in the aggregate would not have a Material Adverse Effect); and no consent, approval, authorization, order, registration or qualification of or with any such court or governmental agency or body is required for the issue and sale of the Securities or the consummation by the Company of the transactions contemplated by this Agreement or any Pricing Agreement or the Indenture, except such as have been, or will have been prior to the Time of Delivery, obtained under the Act and the Trust Indenture Act and such consents, approvals, authorizations, registrations or qualifications as may be required under state securities or Blue Sky laws or the laws of jurisdictions outside of the United States in connection with the purchase and distribution of the Securities by the Underwriters; (i) The statements set forth in the Prospectus as amended or supplemented under the captions "Description of Debt Securities" and "Description of the Securities", insofar as they purport to constitute a summary of the terms of the Securities, and under the captions "Plan of Distribution" and "Underwriting", insofar as they purport to describe the provisions of the laws and documents referred to therein, are accurate in all material respects; (j) Neither the Company nor any of its subsidiaries is in violation of its Certificate of Incorporation or By-laws (or comparable governing documents). Except for set forth in the Prospectus

as amended or supplemented and such violations, defaults and failures as individually or in the aggregate would not have a Material Adverse Effect, neither the Company nor any of its subsidiaries (a) is in default, and no event has occurred which, with notice or lapse of time or both, would constitute such a default, in the performance or observance of any obligation, agreement, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement, lease or other agreement or instrument to which it is a party or by which it or any of its properties may be bound, (b) is in violation of any law, ordinance, governmental rule, regulation or court decree to which it or its property is subject or (c) has failed to obtain any license, permit, certificate, franchise or other governmental authorization necessary to the ownership of its property or to the conduct of its business; (k) Other than as set forth in the Prospectus as amended or supplemented, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any property of the Company or any of its subsidiaries is the subject which, if determined adversely to the Company or any of its subsidiaries, would individually or in the aggregate have a Material Adverse Effect; and, to the Company's knowledge, no such proceedings are threatened or contemplated by governmental authorities or threatened by others; (l) The Company is not and, after giving effect to the offering and sale of the Securities, will not be an "investment company" or an entity "controlled" by an "investment company", as such terms are defined in the Investment Company Act of 1940, as amended (the "Investment Company Act"); (m) Each of Arthur Anderson LLP and Deloitte & Touche LLP, who have certified certain financial statements of the Company and its subsidiaries, are independent public accountants as required by the Act and the rules and regulations of the Commission thereunder; and (n) The description of the Year 2000 problem set forth in the Prospectus as amended or supplemented, including without limitation any statements as to the status, cost or results thereof or the anticipated effects of the Year 2000 Problem on the Company and its subsidiaries, is accurate in all material respects. The "Year 2000 Problem" as used herein means any significant risk that computer hardware or software used in the receipt, transmission, processing, manipulation, storage, retrieval, retransmission or other utilization of data or in the operation of mechanical or electrical systems of any kind will not, when presented with dates or time periods occurring after December 31, 1999, function at least as effectively as when presented with dates or time periods occurring prior to January 1, 2000. (o) Other than as set forth in the Prospectus as amended or supplemented, the Company (i) is in compliance with, and is not subject to costs or liabilities under, any and all local, state, provincial, federal and foreign laws, regulations, rules of common law, orders and decrees, as in effect as of the date hereof, and any presently effective judgments, decrees, orders and injunctions issued or promulgated thereunder, in each case, relating to pollution or protection of public and employee health and safety and the environment applicable to it or its business or operations or ownership or use of its property ("Environmental Laws"), other than such noncompliance or costs or liabilities that would not, either individually or in the aggregate, result in a Material Adverse Effect, and (ii) possesses all permits, licenses or other approvals required under applicable Environmental Laws, other than such permits, licenses or approvals the lack of which would not, either individually or in the aggregate, result in a Material Adverse Effect. The statements set forth in the Prospectus as amended or supplemented or incorporated by reference therein regarding pending or threatened proceedings, notices of violation and notices of potential responsibility or liability under Environmental Laws and other existing environmental conditions with respect to the Company or its subsidiaries, do not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the

statements therein not misleading. The Company maintains a system of internal environmental management controls sufficient to provide reasonable assurance that all material sampling, analytical, record keeping and reporting requirements under applicable Environmental Laws are implemented, executed and maintained in accordance with the requirements of such Environmental Laws. 3. Upon the execution of the Pricing Agreement applicable to any Designated Securities and authorization by the Representatives of the release of such Designated Securities, the several Underwriters propose to offer such Designated Securities for sale upon the terms and conditions set forth in the Prospectus as amended or supplemented. 4. Designated Securities to be purchased by each Underwriter pursuant to the Pricing Agreement relating thereto, in the form specified in such Pricing Agreement, and in such authorized denominations and registered in such names as the Representatives may request upon at least forty-eight hours' prior notice to the Company, shall be delivered by or on behalf of the Company to the Representatives for the account of such Underwriter, against payment by such Underwriter or on its behalf of the purchase price therefor by wire transfer of Federal (same-day) funds to the account specified by the Company to the Representatives at least forty-eight hours in advance or at such other place and time and date as the Representatives and the Company may agree upon in writing, such time and date being herein called the "Time of Delivery" for such Securities. 5. The Company agrees with each of the Underwriters of any Designated Securities: (a) To prepare the Prospectus as amended or supplemented in relation to the applicable Designated Securities in a form approved by the Representatives (which approval will not be unreasonably withheld or delayed) and to file such Prospectus pursuant to Rule 424(b) under the Act not later than the Commission's close of business on the second business day following the execution and delivery of the Pricing Agreement relating to the applicable Designated Securities or, if applicable, such earlier time as may be required by Rule 424(b); to make no further amendment or any supplement to the Registration Statement or Prospectus as amended or supplemented after the date of the Pricing Agreement relating to such Securities and prior to the Time of Delivery for such Securities which shall be disapproved by the Representatives promptly after reasonable notice thereof (which disapproval, if any, must not be unreasonable); to advise the Representatives promptly of any such amendment or supplement after such Time of Delivery and furnish the Representatives with copies thereof; to file promptly all reports and any definitive proxy or information statements required to be filed by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act for so long as the delivery of a prospectus is required in connection with the offering or sale of such Securities, and during such same period to advise the Representatives, promptly after it receives notice thereof, of the time when any amendment to the Registration Statement has been filed with the Commission or becomes effective or any supplement to the Prospectus or any amended Prospectus has been filed with the Commission, of the issuance by the Commission of any stop order or of any order preventing or suspending the use of any prospectus relating to the Securities, of the suspension of the qualification of such Securities for offering or sale in any jurisdiction, of the initiation or threatening of any proceeding for any such purpose, or of any request by the Commission for the amending or supplementing of the Registration Statement or Prospectus or for additional information; and, in the event of the issuance of any such stop order or of any such order preventing or suspending the use of any prospectus relating to the Securities or suspending any such qualification, to promptly use its best efforts to obtain the withdrawal of such order; (b) Promptly from time to time to take such action as the Representatives may reasonably request to qualify such Securities for offering and sale under the securities laws of such jurisdictions in the United States as the Representatives may request and to comply with such laws so as to permit the continuance of sales and dealings therein in such jurisdictions for as long as may be necessary to complete the distribution of such Securities, provided that in connection therewith the

Company shall not be required to qualify as a foreign corporation or to file a general consent to service of process in any jurisdiction; (c) Prior to 10:00 a.m., New York City time, on the New York Business Day next succeeding the date of the Pricing Agreement relating to the applicable Designated Securities and from time to time thereafter, to furnish to the Underwriters in New York City copies of the Prospectus as amended or supplemented in relation to such Securities in such quantities as the Representatives may reasonably request, and, if the delivery of a prospectus is required at any time in connection with the offering or sale of such Securities and if at such time any event shall have occurred as a result of which the Prospectus as then amended or supplemented in relation to such Securities would include an untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made when the Prospectus, as so amended or supplemented, is delivered, not misleading, or, if for any other reason it shall be necessary during such same period to amend or supplement the Prospectus or to file under the Exchange Act any document incorporated by reference in the Prospectus in order to comply with the Act, the Exchange Act or the Trust Indenture Act, to notify the Representatives and upon their request to file such document and to prepare and furnish without charge to each Underwriter and to any dealer in securities as many copies as the Representatives may from time to time reasonably request of an amended Prospectus or a supplement to the Prospectus which will correct such statement or omission or effect such compliance and in case any Underwriter is required to deliver a prospectus in connection with sales of any of such Securities at any time nine months or more after the time of issue of the Prospectus as amended or supplemented in relation thereto, upon the request and at the expense of such Underwriter, to prepare and deliver to such Underwriter as many copies as such Underwriter may request of an amended or supplemented Prospectus complying with Section 10(a)(3) of the Act in relation to such Securities; (d) To make generally available to its securityholders as soon as practicable, but in any event not later than eighteen months after the effective date of the Registration Statement (as defined in Rule 158(c) under the Act), an earnings statement of the Company and its subsidiaries (which need not be audited) complying with Section 9(a) of the Act and the rules and regulations of the Commission thereunder (including, at the option of the Company, Rule 158, in which case this Section 5(d) will not be construed to require the Company to file any report referred to in Rule 158 prior to the time at which such report is otherwise due); (e) During the period beginning from the date of the Pricing Agreement for such Designated Securities and continuing to and including the later of (i) the termination of trading restrictions for such Designated Securities, as notified to the Company by the Representatives and (ii) the Time of Delivery for such Designated Securities, not to offer, sell, contract to sell or otherwise dispose of any debt securities of the Company which mature more than one year after such Time of Delivery and which are substantially similar to such Designated Securities, without the prior written consent of the Representatives; and (f) If the Company elects to rely upon Rule 462(b), the Company shall file a Rule 462(b) Registration Statement with the Commission in compliance with Rule 462(b) by 10:00 P.M., Washington, D.C. time, on the date of this Agreement, and the Company shall at the time of filing either pay to the Commission the filing fee for the Rule 462(b) Registration Statement or give irrevocable instructions for the payment of such fee pursuant to Rule 111(b) under the Act. 6. The Company covenants and agrees with the several Underwriters that the Company will pay or cause to be paid the following: (i) the fees, disbursements and expenses of the Company's counsel and accountants in connection with the registration of the Securities under the Act

and all other expenses in connection with the preparation, printing and filing of the Registration Statement, any Preliminary Prospectus and the Prospectus and amendments and supplements thereto and the mailing and delivering of copies thereof to the Underwriters and dealers; (ii) the cost of printing or producing any Agreement among Underwriters, this Agreement, any Pricing Agreement, any Indenture, any Blue Sky and Legal Investment Memoranda, closing documents (including any compilations thereof) and any other documents in connection with the offering, purchase, sale and delivery of the Securities; (iii) all expenses in connection with the qualification of the Securities for offering and sale under state securities laws as provided in Section 5(b) hereof, including the fees and disbursements of counsel for the Underwriters in connection with such qualification and in connection with the Blue Sky and Legal Investment Surveys; (iv) any fees charged by securities rating services for rating the Securities; (v) any filing fees incident to, and the fees and disbursements of counsel for the Underwriters in connection with, any required review by the National Association of Securities Dealers, Inc. of the terms of the sale of the Securities; (vi) the cost of preparing the Securities; (vii) the fees and expenses of any Trustee and any agent of any Trustee and the fees and disbursements of counsel for any Trustee in connection with any Indenture and the Securities; and (viii) all other costs and expenses incident to the performance of its obligations hereunder which are not otherwise specifically provided for in this Section. It is understood, however, that, except as provided in this Section, and Sections 8 and 11 hereof, the Underwriters will pay all of their own costs and expenses, including the fees of their counsel, transfer taxes on resale of any of the Securities by them, and any advertising expenses connected with any offers they may make. 7. The obligations of the Underwriters of any Designated Securities under the Pricing Agreement relating to such Designated Securities shall be subject, in the discretion of the Representatives, to the condition that all representations and warranties and other statements of the Company in or incorporated by reference in the Pricing Agreement relating to such Designated Securities are, at and as of the Time of Delivery for such Designated Securities, true and correct, the condition that the Company shall have performed all of its obligations hereunder theretofore to be performed, and the following additional conditions: (a) The Prospectus as amended or supplemented in relation to the applicable Designated Securities shall have been filed with the Commission pursuant to Rule 424(b) within the applicable time period prescribed for such filing by the rules and regulations under the Act and in accordance with Section 5(a) hereof; if the Company has elected to rely upon Rule 462(b), the Rule 462(b) Registration Statement shall have become effective by 10:00 P.M., Washington, D.C. time, on the date of this Agreement; no stop order suspending the effectiveness of the Registration Statement or any part thereof shall have been issued and no proceeding for that purpose shall have been initiated or threatened by the Commission; and all requests for additional information on the part of the Commission shall have been complied with to the Representatives' reasonable satisfaction; (b) Counsel for the Underwriters shall have furnished to the Representatives their written opinion, dated the Time of Delivery for such Designated Securities, in substantially the form of Annex III hereto and such counsel shall have received such papers and information as they may reasonably request to enable them to render such opinion; (c) The General Counsel or Deputy General Counsel of the Company shall have furnished to the Underwriters his written opinion, dated the Time of Delivery for such Designated Securities, in substantially the form attached hereto as Annex IV; (d) Brobeck, Phleger & Harrison LLP or other counsel for the Company satisfactory to the Representatives shall have furnished to the Representatives their written opinion, dated the Time of Delivery for such Designated Securities, in substantially the form attached hereto as Annex V; (e) The Trustee, shall have furnished to the Representative an officer's certificate dated the Closing Date in substantially the form set forth as Annex VI hereto.

(f) On or prior to the date of the Pricing Agreement for any Designated Securities and at the Time of Delivery for such Designated Securities, each of the independent accountants of the Company who have certified the financial statements of the Company and its subsidiaries included or incorporated by reference in the Registration Statement shall have furnished to the Representatives a letter to the effect set forth in Annex II(a) hereto, and a letter dated such Time of Delivery to the effect set forth in Annex II(b) hereto, respectively, and with respect to such letter dated such Time of Delivery, as to such other matters as the Representatives may reasonably request and in form and substance satisfactory to the Representatives; (g) (i) Neither the Company nor any of its subsidiaries shall have sustained since the date of the latest audited financial statements included or incorporated by reference in the Prospectus as amended or supplemented prior to the date of the Pricing Agreement relating to the Designated Securities any loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, otherwise than as set forth or contemplated in the Prospectus as amended or supplemented prior to the date of the Pricing Agreement relating to the Designated Securities, and (ii) since the latest date as of which information is given in the Prospectus as amended or supplemented prior to the date of the Pricing Agreement relating to the Designated Securities there shall not have been any change in the capital stock (other than issuances and forfeitures of capital stock in connection with equity-based compensation plans of the company and issuances of stock upon the exercise, conversion or exchange of any outstanding securities of the Company that are excisable to purchase, or convertible into or exchangeable for, capital stock and purchases of capital stock pursuant to any stock repurchase program disclosed in the Prospectus as amended or supplemented) or any increase in excess of $40 million in the long-term debt of the Company or any of its subsidiaries otherwise than as set forth or contemplated in the Prospectus as so amended or supplemented or any change, or any development involving a prospective change, in or affecting the general affairs, management, financial position, stockholders' equity or results of operations of the Company and its subsidiaries taken as a whole, otherwise than as set forth or contemplated in the Prospectus as amended or supplemented prior to the date of the Pricing Agreement relating to the Designated Securities, the effect of which, in any such case described in clause (i) or (ii), is in the judgment of the Representatives so material and adverse as to make it impracticable or inadvisable to proceed with the public offering or the delivery of the Designated Securities on the terms and in the manner contemplated in the Prospectus; (h) On or after the date of the Pricing Agreement relating to the Designated Securities (i) no downgrading shall have occurred in the rating accorded the Company's debt securities or preferred stock by any "nationally recognized statistical rating organization", as that term is defined by the Commission for purposes of Rule 436(g)(2) under the Act, and (ii) no such organization shall have publicly announced that it has under surveillance or review, with possible negative implications, its rating of any of the Company's debt securities or preferred stock; (i) On or after the date of the Pricing Agreement relating to the Designated Securities there shall not have occurred any of the following: (i) a suspension or material limitation in trading in securities generally on the New York Stock Exchange; (ii) a suspension or material limitation in trading in the Company's securities on the New York Stock Exchange; (iii) a general moratorium on commercial banking activities declared by either Federal or New York State authorities; or (iv) the outbreak or escalation of hostilities involving the United States or the declaration by the United States of a national emergency or war, if the effect of any such event specified in this Clause (iv) in the judgment of the Representatives makes it impracticable or inadvisable to proceed with the public offering or the delivery of the Designated Securities on the terms and in the manner contemplated in the Prospectus as first amended or supplemented relating to the Designated Securities;

(j) The Company shall have complied with the provisions of Section 5(c) hereof with respect to the furnishing of prospectuses on the New York Business Day next succeeding the date of the Pricing Agreement relating to such Designated Securities; and (k) The Company shall have furnished or caused to be furnished to the Representatives at the Time of Delivery for the Designated Securities a certificate or certificates signed on behalf of the Company by the Chief Executive Officer or Chief Financial Officer and another senior officer of the Company substantially in the form of Annex VII hereto (including any additional matters as the Representatives may reasonably request) and otherwise satisfactory to the Representatives and counsel to the Representatives. 8(a) The Company will indemnify and hold harmless each Underwriter against any losses, claims, damages or liabilities, joint or several, to which such Underwriter may become subject, under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon an untrue statement or alleged untrue statement of a material fact contained in any Preliminary Prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus as amended or supplemented and any other prospectus relating to the Securities, or any amendment or supplement thereto, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, and will reimburse each Underwriter for any legal or other expenses reasonably incurred by such Underwriter in connection with investigating or defending any such action or claim as such expenses are incurred; PROVIDED, HOWEVER, that the Company shall not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon an untrue statement or alleged untrue statement or omission or alleged omission made in any Preliminary Prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus as amended or supplemented and any other prospectus relating to the Securities, or any such amendment or supplement in reliance upon and in conformity with written information furnished to the Company by any Underwriter of Designated Securities through the Representatives expressly for use in the Prospectus as amended or supplemented relating to such Securities. (b) Each Underwriter will indemnify and hold harmless the Company against any losses, claims, damages or liabilities to which the Company may become subject, under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon an untrue statement or alleged untrue statement of a material fact contained in any Preliminary Prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus as amended or supplemented and any other prospectus relating to the Securities, or any amendment or supplement thereto, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in any Preliminary Prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus as amended or supplemented and any other prospectus relating to the Securities, or any such amendment or supplement in reliance upon and in conformity with written information furnished to the Company by such Underwriter through the Representatives expressly for use therein; and will reimburse the Company for any legal or other expenses reasonably incurred by the Company in connection with investigating or defending any such action or claim as such expenses are incurred. (c) Promptly after receipt by an indemnified party under subsection (a) or (b) above of notice of the commencement of any action, such indemnified party shall, if a claim in respect thereof is to be made against the indemnifying party under such subsection, notify the indemnifying party in writing of the commencement thereof; but the omission so to notify the indemnifying party shall not relieve it from any liability which it may have to any indemnified party otherwise than under such subsection. In case any such action shall be brought against any indemnified party and it shall notify the indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate therein and, to

the extent that it shall wish, jointly with any other indemnifying party similarly notified, to assume the defense thereof, with counsel satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnifying party), and, after notice from the indemnifying party to such indemnified party of its election so to assume the defense thereof, the indemnifying party shall not be liable to such indemnified party under such subsection for any legal expenses of other counsel or any other expenses, in each case subsequently incurred by such indemnified party, in connection with the defense thereof other than reasonable costs of investigation. No indemnifying party shall, without the written consent of the indemnified party, effect the settlement or compromise of, or consent to the entry of any judgment with respect to, any pending or threatened action or claim in respect of which indemnification or contribution may be sought hereunder (whether or not the indemnified party is an actual or potential party to such action or claim) unless such settlement, compromise or judgment (i) includes an unconditional release of the indemnified party from all liability arising out of such action or claim and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act, by or on behalf of any indemnified party. (d) If the indemnification provided for in this Section 8 is unavailable to or insufficient to hold harmless an indemnified party under subsection (a) or (b) above in respect of any losses, claims, damages or liabilities (or actions in respect thereof) referred to therein, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities (or actions in respect thereof) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters of the Designated Securities on the other from the offering of the Designated Securities to which such loss, claim, damage or liability (or action in respect thereof) relates. If, however, the allocation provided by the immediately preceding sentence is not permitted by applicable law or if the indemnified party failed to give the notice required under subsection (c) above, then each indemnifying party shall contribute to such amount paid or payable by such indemnified party in such proportion as is appropriate to reflect not only such relative benefits but also the relative fault of the Company on the one hand and the Underwriters of the Designated Securities on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities (or actions in respect thereof), as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and such Underwriters on the other shall be deemed to be in the same proportion as the total net proceeds from such offering (before deducting expenses) received by the Company bear to the total underwriting discounts and commissions received by such Underwriters. The relative fault shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company on the one hand or such Underwriters on the other and the parties' relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this subsection (d) were determined by PRO RATA allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this subsection (d). The amount paid or payable by an indemnified party as a result of the losses, claims, damages or liabilities (or actions in respect thereof) referred to above in this subsection (d) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this subsection (d), no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the applicable Designated Securities underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The obligations of the Underwriters of Designated

Securities in this subsection (d) to contribute are several in proportion to their respective underwriting obligations with respect to such Securities and not joint. (e) The obligations of the Company under this Section 8 shall be in addition to any liability which the Company may otherwise have and shall extend, upon the same terms and conditions, to each person, if any, who controls any Underwriter within the meaning of the Act; and the obligations of the Underwriters under this Section 8 shall be in addition to any liability which the respective Underwriters may otherwise have and shall extend, upon the same terms and conditions, to each officer and director of the Company including any person who, with his or her consent, is named in the Registration Statement as about to become a director of the Company and to each person, if any, who controls the Company within the meaning of the Act. 9(a) If any Underwriter shall default in its obligation to purchase the Designated Securities which it has agreed to purchase under the Pricing Agreement relating to such Designated Securities, the Representatives may in their discretion arrange for themselves or another party or other parties to purchase such Designated Securities on the terms contained herein. If within thirty-six hours after such default by any Underwriter the Representatives do not arrange for the purchase of such Designated Securities, then the Company shall be entitled to a further period of thirty-six hours within which to procure another party or other parties satisfactory to the Representatives to purchase such Designated Securities on such terms. In the event that, within the respective prescribed period, the Representatives notify the Company that they have so arranged for the purchase of such Designated Securities, or the Company notifies the Representatives that it has so arranged for the purchase of such Designated Securities, the Representatives or the Company shall have the right to postpone the Time of Delivery for such Designated Securities for a period of not more than seven days, in order to effect whatever changes may thereby be made necessary in the Registration Statement or the Prospectus as amended or supplemented, or in any other documents or arrangements, and the Company agrees to file promptly any amendments or supplements to the Registration Statement or the Prospectus which in the opinion of the Representatives may thereby be made necessary. The term "Underwriter" as used in this Agreement shall include any person substituted under this Section with like effect as if such person had originally been a party to the Pricing Agreement with respect to such Designated Securities. (b) If, after giving effect to any arrangements for the purchase of the Designated Securities of a defaulting Underwriter or Underwriters by the Representatives and the Company as provided in subsection (a) above, the aggregate principal amount of such Designated Securities which remains unpurchased does not exceed one-eleventh of the aggregate principal amount of the Designated Securities, then the Company shall have the right to require each non-defaulting Underwriter to purchase the principal amount of Designated Securities which such Underwriter agreed to purchase under the Pricing Agreement relating to such Designated Securities and, in addition, to require each non-defaulting Underwriter to purchase its pro rata share (based on the principal amount of Designated Securities which such Underwriter agreed to purchase under such Pricing Agreement) of the Designated Securities of such defaulting Underwriter or Underwriters for which such arrangements have not been made; but nothing herein shall relieve a defaulting Underwriter from liability for its default. (c) If, after giving effect to any arrangements for the purchase of the Designated Securities of a defaulting Underwriter or Underwriters by the Representatives and the Company as provided in subsection (a) above, the aggregate principal amount of Designated Securities which remains unpurchased exceeds one-eleventh of the aggregate principal amount of the Designated Securities, as referred to in subsection (b) above, or if the Company shall not exercise the right described in subsection (b) above to require non-defaulting Underwriters to purchase Designated Securities of a defaulting Underwriter or Underwriters, then the Pricing Agreement relating to such Designated Securities shall thereupon terminate, without liability on the part of any non-defaulting Underwriter or the Company, except for the expenses to be borne by the Company and the Underwriters as provided in Section 6 hereof and the indemnity and contribution agreements in Section 8 hereof; but nothing herein shall relieve a defaulting Underwriter from liability for its default.

10. The respective indemnities, agreements, representations, warranties and other statements of the Company and the several Underwriters, as set forth in this Agreement or made by or on behalf of them, respectively, pursuant to this Agreement, shall remain in full force and effect, regardless of any investigation (or any statement as to the results thereof) made by or on behalf of any Underwriter or any controlling person of any Underwriter, or the Company, or any officer or director or controlling person of the Company, and shall survive delivery of and payment for the Securities. 11. If any Pricing Agreement shall be terminated pursuant to Section 9 hereof, the Company shall not then be under any liability to any Underwriter with respect to the Designated Securities covered by such Pricing Agreement except as provided in Sections 6 and 8 hereof; but, if for any other reason Designated Securities are not delivered by or on behalf of the Company as provided herein, the Company will reimburse the Underwriters through the Representatives for all out-of-pocket expenses approved in writing by the Representatives, including fees and disbursements of counsel, reasonably incurred by the Underwriters in making preparations for the purchase, sale and delivery of such Designated Securities, but the Company shall then be under no further liability to any Underwriter with respect to such Designated Securities except as provided in Sections 6 and 8 hereof. 12. In all dealings hereunder, the Representatives of the Underwriters of Designated Securities shall act on behalf of each of such Underwriters, and the parties hereto shall be entitled to act and rely upon any statement, request, notice or agreement on behalf of any Underwriter made or given by such Representatives jointly or by such of the Representatives, if any, as may be designated for such purpose in the Pricing Agreement. All statements, requests, notices and agreements hereunder shall be in writing, and if to the Underwriters shall be delivered or sent by mail, telex or facsimile transmission to the address of the Representatives as set forth in the Pricing Agreement; and if to the Company shall be delivered or sent by mail, telex or facsimile transmission to the address of the Company set forth in the Registration Statement: Attention: General Counsel; provided, however, that any notice to an Underwriter pursuant to Section 8(c) hereof shall be delivered or sent by mail, telex or facsimile transmission to such Underwriter at its address set forth in its Underwriters' Questionnaire, or telex constituting such Questionnaire, which address will be supplied to the Company by the Representatives upon request. Any such statements, requests, notices or agreements shall take effect upon receipt thereof. 13. This Agreement and each Pricing Agreement shall be binding upon, and inure solely to the benefit of, the Underwriters, the Company and, to the extent provided in Sections 8 and 10 hereof, the officers and directors of the Company and each person who controls the Company or any Underwriter, and their respective heirs, executors, administrators, successors and assigns, and no other person shall acquire or have any right under or by virtue of this Agreement or any such Pricing Agreement. No purchaser of any of the Securities from any Underwriter shall be deemed a successor or assign by reason merely of such purchase. 14. Time shall be of the essence of each Pricing Agreement. As used herein, "business day" shall mean any day when the Commission's office in Washington, D.C. is open for business. 15. THIS AGREEMENT AND EACH PRICING AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

16. This Agreement and each Pricing Agreement may be executed by any one or more of the parties hereto and thereto in any number of counterparts, each of which shall be deemed to be an original, but all such respective counterparts shall together constitute one and the same instrument.

If the foregoing is in accordance with your understanding, please sign and return to us one for the Company and for each of the Representatives plus one for each counsel counterparts hereof. Very truly yours, LOUISIANA-PACIFIC CORPORATION By: _________________________________ Name: Title: Accepted as of the date hereof: GOLDMAN, SACHS & CO. By: __________________________________ Goldman, Sachs & Co.

Exhibit 4 - -------------------------------------------------------------------------------- LOUISIANA-PACIFIC CORPORATION and BANK ONE TRUST COMPANY, N.A. TRUSTEE FORM OF FIRST AND SECOND SUPPLEMENTAL TRUST INDENTURES EACH DATED AS OF __________, 2000 Supplementing that certain INDENTURE DATED AS OF APRIL 2, 1999 Authorizing the Issuance and Delivery of Senior Notes consisting of $_________ aggregate principal amount of __% Senior Notes Due 20__ - --------------------------------------------------------------------------------

-i- TABLE OF CONTENTS PAGE RECITALS 1 [Form of Face of Security] 2 [Form of Reverse of Security] 3 ARTICLE I. ISSUANCE OF SENIOR NOTES. 7 SECTION I.1. ISSUANCE OF SENIOR NOTES; PRINCIPAL AMOUNT; MATURITY. 7 SECTION I.2. INTEREST ON THE SENIOR NOTES; PAYMENT OF INTEREST. 8 SECTION I.3. EXECUTION, AUTHENTICATION AND DELIVERY OF SECURITIES. 8 ARTICLE II. CERTAIN DEFINITIONS. 8 SECTION II.1. CERTAIN DEFINITIONS. 8 ARTICLE III. CERTAIN COVENANTS. 12 SECTION III.1. LIENS 12 SECTION III.2. SALE AND LEASE-BACK TRANSACTIONS. 14 SECTION III.3. OFFER TO REPURCHASE UPON CHANGE OF CONTROL 14 SECTION III.4. PERMITTING UNRESTRICTED SUBSIDIARIES TO BECOME RESTRICTED SUBSIDIARIES 15 SECTION III.5. PAYMENT OFFICE 15 ARTICLE IV. ADDITIONAL EVENTS OF DEFAULT. 16 SECTION IV.1. ADDITIONAL EVENTS OF DEFAULT. 16 ARTICLE V. DEFEASANCE. 16 SECTION V.1. APPLICABILITY OF ARTICLE V OF THE INDENTURE 16 ARTICLE VI. REDEMPTION OF SENIOR NOTES 17 SECTION VI.1. RIGHT OF REDEMPTION 17 ARTICLE VII. MISCELLANEOUS. 17 SECTION VII.1. REFERENCE TO AND EFFECT ON THE INDENTURE 17 SECTION VII.2. WAIVER OF CERTAIN COVENANTS 17 SECTION VII.3. SUPPLEMENTAL INDENTURE MAY BE EXECUTED IN COUNTERPARTS 18 SECTION VII.4. EFFECT OF HEADINGS 18

FIRST SUPPLEMENTAL INDENTURE, dated as of __________, 2000, between Louisiana-Pacific Corporation, a corporation duly organized and existing under the laws of the State of Delaware (the "COMPANY"), and Bank One Trust Company, N.A. (as successor in interest to The First National Bank of Chicago), a national banking association duly incorporated under the laws of the United States of America, as Trustee (the "TRUSTEE"), supplementing that certain Indenture, dated as of April 2, 1999, between the Company and the Trustee (the "INDENTURE"). RECITALS A. The Company has duly authorized the execution and delivery of the Indenture to provide for the issuance from time to time of its unsecured debentures, notes, or other evidences of indebtedness (the "SECURITIES") to be issued in one or more series as provided for in the Indenture. B. The Indenture provides that the Securities of each series shall be in substantially the form set forth in the Indenture, or in such other form as may be established by or pursuant to a Board Resolution or in one or more indentures supplemental thereto, in each case with such appropriate insertions, omissions, substitutions, and other variations as are required or permitted by the Indenture, and may have such letters, numbers, or other marks of identification and such legends or endorsements placed thereon as may be required to comply with the rules of any securities exchange or as may, consistently herewith, be determined by the officers executing such Securities, as evidenced by their execution thereof. C. The Company and the Trustee have agreed that the Company shall issue and deliver, and the Trustee shall authenticate, Securities denominated "__% Senior Notes Due 20__" (the "SENIOR NOTES") pursuant to the terms of this Supplemental Indenture and substantially in the form set forth below, in each case with such appropriate insertions, omissions, substitutions, and other variations as are required or permitted by the Indenture and this Supplemental Indenture, and with such letters, numbers, or other marks of identification and such legends or endorsements placed thereon as may be required to comply with the rules of any securities exchange or as may, consistently herewith, be determined by the officers executing such Senior Notes, as evidenced by their execution of such Senior Notes.

[Form of Face of Security] This Security is a Global Security within the meaning of the Indenture hereinafter referred to and is registered in the name of a Depositary or a nominee thereof. This Security may not be transferred to, or registered or exchanged for Securities registered in the name of, any Person other than the Depositary or a nominee thereof, and no such transfer may be registered, except in the limited circumstances described in the Indenture. Every Security authenticated and delivered upon registration of transfer of, or in exchange for or in lieu of, this Security shall be a Global Security subject to the foregoing, except in such limited circumstances. LOUISIANA-PACIFIC CORPORATION __% SENIOR NOTE DUE 20__ No. ___ $____________ Cusip No. __________ LOUISIANA-PACIFIC CORPORATION, a corporation duly organized and existing under the laws of the State of Delaware (hereinafter called the "COMPANY," which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of $__________ on ___________, 20__ and to pay interest thereon from __________, 2000 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semiannually on ___________ and _________ of each year, commencing on __________, 2001, at the rate of __% per annum, until the principal hereof is paid or made available for payment. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date shall, as provided in said Indenture, be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the __________ or ________ (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 calendar days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said Indenture. Subject, in the case of any Global Security, to any applicable requirements of the Depositary, payment of the principal of and interest on this Security shall be made at the office or agency of the Company maintained for the purpose in New York, New York, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; PROVIDED, HOWEVER, that at the option of the Company payment of interest may be made by check mailed to the address of the Person entitled thereto as such address appears in the Security Register. -2-

REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS SET FORTH ON THE REVERSE HEREOF. SUCH PROVISIONS SHALL FOR ALL PURPOSES HAVE THE SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE. This Security shall not be valid or become obligatory for any purpose until the certificate of authentication herein has been signed manually by the Trustee under said Indenture. IN WITNESS WHEREOF, this instrument has been duly executed in accordance with the Indenture. LOUISIANA-PACIFIC CORPORATION Date Issued: By:______________________________ Attest: By:___________________ [Form of Reverse of Security] LOUISIANA-PACIFIC CORPORATION This Security is one of a duly authorized issue of securities of the Company (herein called the "SECURITIES") issued and to be issued in one or more series under an Indenture, dated as of April 2, 1999 (herein called the "INDENTURE"), between the Company and Bank One Trust Company, N.A. (as successor in interest to The First National Bank of Chicago) as Trustee (herein called the "TRUSTEE," which term includes any successor trustee under the Indenture), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties, and immunities thereunder of the Company, the Trustee, and the Holders of the Securities and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is one of the series designated on the face hereof, limited in aggregate principal amount to $_________. Upon the occurrence of a Change of Control, the Company is required to offer to purchase the Securities at a purchase price equal to 101% of the principal amount thereof, together with accrued and unpaid interest to the Change of Control Payment Date, but interest installments with a Stated Maturity on or prior to such Change of Control Payment Date shall be payable to the Holders of such Securities of record at the close of business on the relevant Record Dates referred to on the face hereof, all as provided in the Indenture. -3-

In the event of the repurchase of this Security in part only, a new Security or Securities of this series and of like tenor for the portion hereof not so repurchased shall be issued in the name of the Holder hereof upon the cancellation hereof. The Securities are redeemable in whole or in part, at the option of the Company at any time and from time to time, on not less than 30 or more than 60 days' prior notice mailed to the Holders of the Securities, at a Redemption Price equal to the greater of (i) 100% of the principal amount of the Securities to be redeemed and (ii) as determined by a Quotation Agent, the sum of the present values of the Remaining Scheduled Payments thereon discounted to the Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Adjusted Treasury Rate plus __ basis points, together in either case with accrued interest on the principal amount being redeemed to the Redemption Date. "ADJUSTED TREASURY RATE" means, with respect to any Redemption Date, the rate per annum equal to the semiannual equivalent yield to maturity (computed as of the second business day immediately preceding such Redemption Date) of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date. "COMPARABLE TREASURY ISSUE" means the United States Treasury security selected by a Quotation Agent as having a maturity comparable to the remaining term of the Securities that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Securities. "COMPARABLE TREASURY PRICE" means, with respect to any Redemption Date, (i) the average of the Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest of such Reference Treasury Dealer Quotations, or (ii) if the Trustee obtains fewer than three such Reference Treasury Dealer Quotations, the average of all such Quotations. "QUOTATION AGENT" means the Reference Treasury Dealer appointed by the Trustee after consultation with the Company. "REFERENCE TREASURY DEALER" means (i) Goldman, Sachs & Co. and its successors; PROVIDED, HOWEVER, that if the foregoing shall cease to be a primary U.S. Government securities dealer in New York City (a "PRIMARY TREASURY DEALER"), the Company shall designate as a substitute therefor another Primary Treasury Dealer, and (ii) any other Primary Treasury Dealer selected by the Trustee after consultation with the Company. "REFERENCE TREASURY DEALER QUOTATIONS" means, with respect to each Reference Treasury Dealer and any Redemption Date, the average, as determined by the Trustee, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Trustee by such Reference Treasury Dealer as of 5:00 p.m., New York City time, on the third Business Day preceding such Redemption Date. "REMAINING SCHEDULED PAYMENTS" means, with respect to each Security to be redeemed, the remaining scheduled payments of the principal thereof and interest thereon that would -4-

be due after the related Redemption Date but for such redemption, except that, if such Redemption Date is not an interest payment date with respect to such Security, the amount of the next succeeding scheduled interest payment thereon shall be reduced by the amount of interest accrued thereon to such Redemption Date. On and after any Redemption Date, interest will cease to accrue on the Securities or any portion thereof called for redemption. Prior to any Redemption Date, the Company shall deposit with a paying agent money sufficient to pay the Redemption Price of and accrued interest on the Securities to be redeemed on such date. If less than all the Securities are to be redeemed, the Securities to be redeemed shall be selected by the Trustee by such method as the Trustee shall deem fair and appropriate in accordance with methods generally used at the time of selection by fiduciaries in similar circumstances. The Indenture contains provisions for defeasance at any time of (a) the entire indebtedness of this Security or (b) certain restrictive covenants and Events of Default with respect to this Security, in each case upon compliance with certain conditions set forth in the Indenture. If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture. The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each series to be effected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the Securities at the time Outstanding of each series to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at the time Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security. As provided in and subject to the provisions of the Indenture, the Holder of this Security shall not have the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or trustee or for any other remedy thereunder unless such Holder shall have previously given the Trustee written notice of a continuing Event of Default with respect to the Securities of this series, the Holders of not less than 25% in principal amount of the Securities of this series at the time Outstanding shall have made written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity, and the Trustee shall not have received from the Holders of a majority in principal amount of Securities of this series at the time Outstanding a direction inconsistent with such request and shall have failed to institute such proceeding for 60 calendar days after receipt of such notice, request, and offer of indemnity. The foregoing shall apply to any suit instituted by the Holder of this Security for the enforcement of any payment of principal hereof or any premium or interest hereon on or after the respective due dates expressed herein. -5-

No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Security at the times, place, and rate, and in the coin or currency, herein prescribed. As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registerable in the Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of and any premium and interest on this Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, shall be issued to the designated transferee or transferees. The Securities of this series are issuable only in registered form without coupons in denominations of $1,000 and integral multiples thereof. As provided in the Indenture and subject to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of like tenor of a different authorized denomination, as requested by the Holder surrendering the same. No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. Prior to due presentment of this Security for registration of transfer, the Company, the Trustee, and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security shall be overdue, and neither the Company, the Trustee, nor any such agent shall be affected by notice to the contrary. Unless this Security is presented by an authorized representative of The Depository Trust Company (55 Water Street, New York, New York) to the Company or its agent for registration of transfer, exchange, or payment, and any Security issued upon registration of transfer of, or in exchange for or in lieu of, this Security is registered in the name of Cede & Co. or such other name as requested by an authorized representative of The Depository Trust Company and payment hereon is made to Cede & Co., ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL because the registered owner hereof, Cede & Co., has an interest herein. All terms used in this Security that are defined in the Indenture shall have the respective meanings assigned to them in the Indenture. D. The Trustee's certificate of authentication shall be in substantially the following form: -6-

TRUSTEE'S CERTIFICATE OF AUTHENTICATION This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture. Dated: _________________ BANK ONE TRUST COMPANY, N.A., as Trustee By:___________________________ AUTHORIZED OFFICER E. All acts and things necessary to make the Senior Notes, when the Senior Notes have been executed by the Company and authenticated by the Trustee and delivered as provided in the Indenture and this Supplemental Indenture, the valid, binding, and legal obligations of the Company and to constitute these presents a valid indenture and agreement according to its terms, have been done and performed, and the execution and delivery by the Company of the Indenture and this Supplemental Indenture and the issue hereunder of the Senior Notes have in all respects been duly authorized; and the Company, in the exercise of legal right and power in it vested, has executed and delivered the Indenture and is executing and delivering this Supplemental Indenture and proposes to make, execute, issue, and deliver the Senior Notes. NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH: In order to declare the terms and conditions upon which the Senior Notes are authenticated, issued, and delivered, and in consideration of the premises and of the purchase and acceptance of the Senior Notes by the Holders thereof, it is mutually agreed, for the equal and proportionate benefit of the respective Holders from time to time of the Senior Notes, as follows: ARTICLE I. ISSUANCE OF SENIOR NOTES. SECTION I.1. ISSUANCE OF SENIOR NOTES; PRINCIPAL AMOUNT; MATURITY. (a) On _________, 2000 the Company shall issue and deliver to the Trustee, and the Trustee shall authenticate, Senior Notes substantially in the form set forth above, in each case with such appropriate insertions, omissions, substitutions, and other variations as are required or permitted by the Indenture and this Supplemental Indenture, and with such letters, numbers, or other marks of identification and such legends or endorsements placed thereon as may be required to comply with the rules of any securities exchange or as may, consistently herewith, be determined by the officers executing such Senior Notes, as evidenced by their execution of such Senior Notes. -7-

(b) The Senior Notes shall be issued in the aggregate principal amount of $_________ and shall mature on ___________, 20__. SECTION I.2. INTEREST ON THE SENIOR NOTES; PAYMENT OF INTEREST. (a) The Senior Notes shall bear interest at the rate of __% per annum from __________, 2000, except in the case of Senior Notes delivered pursuant to Sections 2.05 or 2.07 of the Indenture, which shall bear interest from the most recent Interest Payment Date to which interest has been paid or duly provided for, until the principal thereof is paid or made available for payment. Such interest shall be payable semiannually on ________ and ________ of each year, commencing ___________, 2001. (b) The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date shall, as provided in such Indenture, be paid to the Person in whose name a Senior Note (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the __________ or ________ (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name the Senior Note (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 calendar days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Senior Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. (c) Subject, in the case of any Global Security, to any applicable requirements of the Depositary, payment of the principal of and interest on the Senior Notes shall be made at the office or agency of the Company maintained for the purpose in New York, New York, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; PROVIDED, HOWEVER, that at the option of the Company payment of interest may be made by check mailed to the address of the Person entitled thereto as such address appears in the Security Register. SECTION I.3. EXECUTION, AUTHENTICATION AND DELIVERY OF SECURITIES. The Senior Notes shall be executed on behalf of the Company by the Chairman or any Vice Chairman of the Board of Directors, the Chief Executive Officer, the President, or any Vice President of the Company and attested by the Treasurer, the Secretary, any Assistant Treasurer, or any Assistant Secretary of the Company, in each case by either manual or facsimile signature. ARTICLE II. CERTAIN DEFINITIONS. SECTION II.1. CERTAIN DEFINITIONS. The terms defined in this Section 2.1 (except as herein otherwise expressly provided or unless the context of this Supplemental Indenture otherwise requires) for all purposes of this -8-

Supplemental Indenture and of any indenture supplemental hereto have the respective meanings specified in this Section 2.1. All accounting terms not otherwise defined herein have the meanings assigned to them in accordance with GAAP. All other terms used in this Supplemental Indenture that are defined in the Indenture or the Trust Indenture Act, either directly or by reference therein (except as herein otherwise expressly provided or unless the context of this Supplemental Indenture otherwise requires), have the respective meanings assigned to such terms in the Indenture or the Trust Indenture Act, as the case may be, as in force at the date of this Supplemental Indenture as originally executed. "CAPITAL STOCK" means, with respect to any Person, any and all shares, interests, participations, rights in or other equivalents (however designated) of such Person's capital stock or equity interests (including without limitation, with respect to partnerships, limited liability companies or business trusts, ownership interests (whether general or limited) and any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or distributions of assets of, such partnerships, limited liability companies or business trusts) and any rights (other than debt securities convertible into such capital stock or equity interests), warrants or options exchangeable for or convertible into such capital stock or equity interests. "CHANGE OF CONTROL" means the occurrence of any of the following events: (a) any "PERSON" or "GROUP" (as such terms are used in Section 13(d) of the Exchange Act) becomes the "beneficial owner" (as defined in Rules 13d-3 and 13d-5 under Exchange Act), directly or indirectly, of more than 50% of the total Voting Stock of the Company; (b) the Company consolidates with, or merges with or into, another Person, or another Person consolidates with, or merges with or into, the Company, in either case pursuant to a transaction in which the outstanding Voting Stock of the Company is converted into or exchanged for cash, securities, or other property, other than any such transaction where (i) immediately after such transaction no "person" or "group" (as such terms are used in Section 13(d) of the Exchange Act) is the "beneficial owner" (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly or indirectly, of more than 50% of the total Voting Stock of the Person created by or surviving such transaction and (ii) THE HOLDERS OF A MAJORITY OF THE TOTAL VOTING STOCK OF THE COMPANY IMMEDIATELY PRIOR TO SUCH TRANSACTION HOLD, IMMEDIATELY FOLLOWING SUCH TRANSACTION, A MAJORITY OF THE TOTAL VOTING STOCK (OR COMPARABLE EQUITY SECURITIES) OF THE PERSON CREATED BY OR SURVIVING SUCH TRANSACTION;(c) the sale, assignment, conveyance, transfer, lease or other disposition of all or substantially all of the assets of the Company and its Restricted Subsidiaries as a whole to any "person" or "group" (as such terms are used in Section 13(d) of the Exchange Act), (d) during any consecutive two-year period, individuals who at the beginning of such period constituted the Board of Directors (together with any new directors whose election by such Board of Directors or whose nomination for election by the stockholders of the Company was approved by a vote of a majority of the directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason to constitute a majority of the Board of Directors then in office; or (e) the dissolution or liquidation of the Company. Notwithstanding the foregoing, a transaction effected to create a holding company of the Company will not be deemed to involve a Change of Control if (1) pursuant to such transaction the Company becomes a wholly owned Subsidiary of such holding company and (2) the holders of the Voting Stock of such holding company immediately following such transaction are substantially the same as the holders of Voting Stock of the Company immediately prior to such transaction. -9-

"CONSOLIDATED NET TANGIBLE ASSETS" means total assets (less accumulated depreciation and valuation reserves and other reserves and items deductible from gross book value of specific asset accounts under GAAP) after deducting therefrom (i) all current liabilities and (ii) all goodwill, trade names, trademarks, patents, unamortized debt discount, organization expenses, and other like intangibles, all as set forth on the most recent balance sheet of the Company and its consolidated Subsidiaries and computed in accordance with GAAP. "DEBT" means (i) all indebtedness, whether or not represented by bonds, debentures, notes or other securities, for the repayment of money borrowed and (ii) all guaranties, endorsements, assumptions and other contractual obligations in respect of, or to purchase or to otherwise acquire, indebtedness of others. "FUNDED DEBT" means any Debt which by its terms matures more than one year after, or which is renewable or extendible at the option of the obligor for a period ending more than one year after, the date as of which Funded Debt is being determined, and shall include (i) any Debt that so matures or that is so renewable or extendible incurred, assumed or guaranteed by the Company or any Restricted Subsidiary, either directly or indirectly, (ii) any deferred indebtedness of the Company or any Restricted Subsidiary for the payment of the purchase price of property or assets purchased that so matures or that is so renewable or extendible, and (iii) any indebtedness secured by a mortgage, lien, security interest, pledge, assignment or transfer on, in or of any property of the Company or any Restricted Subsidiary and upon which the Company or any Restricted Subsidiary customarily pays the interest, that so matures or that is so renewable or extendible. "PRINCIPAL PROPERTY" means any mill, converting plant or manufacturing facility (including, in each case, the equipment therein) and any timberland, in each case located within the continental Untied States of America (other than any of the foregoing acquired principally for the control or abatement of atmospheric pollutants or contaminants or water, noise, odor or other pollution, or any facility financed from the proceeds of pollution control or revenue bonds), whether owned on the date hereof or hereafter acquired, having a gross book value (without deduction of any applicable accumulated depreciation) on the date as of which the determination is being made of more than 5% of Consolidated Net Tangible Assets, but shall not include any minerals or mineral rights, or any timberland designated by the Board of Directors of the Company or of a Restricted Subsidiary, as the case may be, as being held primarily for investment, development and/or sale. "RESTRICTED SUBSIDIARY" means any Subsidiary of the Company other than an Unrestricted Subsidiary. -10-

"SALE AND LEASE-BACK TRANSACTION" means, with respect to any Person, an arrangement with any bank, insurance company or other lender or investor or to which such lender or investor is a party providing for the leasing pursuant to a Capital Lease to such Person or any Subsidiary of such Person of any property or asset of such Person or such Subsidiary which has been or is being sold or transferred by such Person or such Subsidiary to such lender or investor or to any Person to whom funds have been or are to be advanced by such lender or investor on the security of such property or asset, other than (a) leases for a term, including renewals at the option of the lessee, of not more than three years, by the end of which term it is intended that the use of such property or asset by such Person will be discontinued, (b) leases between the Company and a Restricted Subsidiary or between Restricted Subsidiaries, provided that any Restricted Subsidiary that is a lessee under any such lease continues to be a Restricted Subsidiary for the term of such lease, and (c) leases entered into within 120 days after the later of the acquisition or the completion of construction or improvement of the property to be leased. "SIGNIFICANT SUBSIDIARY" means any Subsidiary of the Company that accounts for (a) 10.0% or more of the total consolidated assets of the Company and its Subsidiaries as of any date of determination or (b) 10.0% or more of the total consolidated revenues of the Company and its Subsidiaries for the most recently concluded fiscal quarter. "UNRESTRICTED SUBSIDIARY" means (a) L-P SPV, Inc. and L-P SPV2, LLC, (b) any Subsidiary of the Company the primary business of which consists of, and is restricted by the charter, partnership agreement, or similar organizational document of such Subsidiary to, financing operations on behalf of the Company and its Subsidiaries, and/or purchasing accounts receivable or direct or indirect interests therein and/or making loans secured by accounts receivable or direct or indirect interests therein (and business related to the foregoing), or which is otherwise primarily engaged in, and restricted by its charter, partnership agreement, or similar organizational document to, the business of a finance company (and business related thereto), which, in accordance with the provisions of this Supplemental Indenture, has been designated by Board Resolution as an Unrestricted Subsidiary, in each case unless and until any of the Subsidiaries of the Company referred to in the foregoing clauses (a) and (b) is, in accordance with the provisions of this Supplemental Indenture, designated by a Board Resolution as a Restricted Subsidiary, and (c) any Subsidiary of the Company of which, in the case of a corporation, more than 50% of the issued and outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether at the time capital stock of any other class or classes of such corporation has or might have voting power upon the occurrence of any contingency), or, in the case of any partnership or other legal entity, more than 50% of the ordinary equity capital interests, is at the time directly or indirectly owned or controlled by one or more Unrestricted Subsidiaries and the primary business of which consists of, and is restricted by the charter, partnership agreement, or similar organizational document of such Subsidiary to, financing operations on behalf of the Company and its Subsidiaries, and/or purchasing accounts receivable or direct or indirect interests therein, and/or making loans secured by accounts receivable or direct or indirect interests therein (and business related to the foregoing), or which is otherwise primarily engaged in, and restricted by its charter, partnership agreement, or similar organizational document to, the business of a finance company (and business related thereto). "VALUE" means with respect to a Sale and Lease-Back Transaction, as of any particular time, an amount equal to (1) the greater of (a) the fair value of the property leased pursuant -11-

to such Sale and Lease-Back Transaction (as determined by the Board of Directors of Louisiana-Pacific or a Person designated by such Board of Directors) and (b) the net proceeds from the sale or transfer of the property leased pursuant to such Sale and Lease-Back Transaction divided by (2) the number of full years of the term of the lease (determined without regard to any renewal or extension options contained in the lease) and multiplied by (3) the number of full years of such term remaining at the time of determination (determined without regard to any renewal or extension options contained in the lease). "VOTING STOCK" means any class or classes of Capital Stock (however designated) conferring upon the holders thereof the ordinary voting power to elect or remove at least a majority of the board of directors, general or managing partners, managers or trustees of any Person, determined without regard to any voting power that has been or may be conferred by any class or classes of Capital Stock (however designated) by reason of the occurrence of any contingency. ARTICLE III. CERTAIN COVENANTS. The following covenants shall be applicable to the Company for so long as any of the Senior Notes are Outstanding. Nothing in this paragraph will, however, affect the Company's rights or obligations under any other provision of the Indenture or this Supplemental Indenture. SECTION III.1. LIENS. (a) The Company shall not and shall not permit any Restricted Subsidiary to, (i) incur, assume or guarantee any Debt secured by any mortgage, lien, security interest, pledge, assignment or transfer (hereinafter called "mortgage" or "mortgages") on, in or of any Principal Property of the Company or of a Restricted Subsidiary or on, in or of any shares of stock or indebtedness of any Restricted Subsidiary (whether such Principal Property, shares of stock or indebtedness is now owned or hereafter acquired), or (ii) directly or indirectly secure any outstanding Debt of the Company or any Restricted Subsidiary by any mortgage on, in or of any Principal Property of the Company or of a Restricted Subsidiary or upon any shares of stock or indebtedness of any Restricted Subsidiary (whether such Principal Property, shares of stock or indebtedness is now owned or hereafter acquired), without in any such case concurrently and effectively securing, the Senior Notes (together with, if the Company shall so determine, any other indebtedness of or guaranteed by the Company or such Restricted Subsidiary ranking equally with the Senior Notes and then existing or thereafter created) with the same property equally and ratably with such Debt; provided, however, that the foregoing restrictions shall not apply to (i) any mortgage on, in or of any property acquired, constructed or improved by the Company or any Restricted Subsidiary after the date of this Supplemental Indenture which is created, incurred or assumed within 120 days after such acquisition or the completion of such construction or improvement, or within six months thereafter pursuant to a firm commitment for financing arranged with a lender or investor within such 120-day period, to secure or provide for the payment of all or any part of the purchase price of such property (including the purchase price of any Person that owns such property) or the cost of such construction or improvement incurred after the date of this Supplemental Indenture, PROVIDED that -12-

such mortgage does not extend to or cover any property of the Company or of any Restricted Subsidiary other than the property so acquired, constructed or improved; (ii) mortgages existing or in effect with respect to any property, shares of stock or indebtedness at the time the same is acquired by the Company or a Restricted Subsidiary by merger or otherwise; (iii) mortgages existing or in effect with respect to any property (including shares of stock and indebtedness) of any Person existing at the time such Person becomes a Restricted Subsidiary; (iv) mortgages existing or in effect on the date of this Supplemental Indenture; (v) mortgages securing Debt of a Restricted Subsidiary to the Company or to another Restricted Subsidiary; (vi) mortgages in favor of the United States of America or any state thereof, or any department, agency or instrumentality or political subdivision of the United States of America or any state thereof, to secure partial progress, advance or other payments pursuant to any contract or statute or to secure any indebtedness incurred for the purpose of financing all or any part of the purchase price or the cost of constructing or improving the property subject to such mortgages; (vii) any mortgage on, in or of timberlands in connection with an arrangement under which the Company or a Restricted Subsidiary is obligated to cut or pay for timber in order to provide the secured party with a specified amount of money, however determined, PROVIDED that such mortgage does not extend to or cover any property of the Company or of any Restricted Subsidiary other than such timberlands; (viii) mortgages created, incurred or assumed in connection with the issuance of revenue bonds the interest of which is exempt from federal income taxation pursuant to Section 103(a) and related provisions (including any successor provisions thereto) of the Internal Revenue Code of 1986, as amended; or (ix) mortgages created, extended or renewed in connection with any extension, renewal, refinancing, replacement or refunding (including successive extensions, renewals, refinancings, replacements or refundings), in whole or in part, of Debt secured by any mortgage referred to in the foregoing clauses (i) to (viii); provided, however, that the principal amount of Debt secured thereby shall not exceed the principal amount of Debt so secured at the time of such extension, renewal, refinancing, replacement or refunding, and that such extension, renewal, refinancing, replacement or refunding shall be limited to all or a part of the property which secured the Debt so extended, renewed, refinanced, replaced or refunded (plus improvements on such property). -13-

(b) The provisions of Section 3.1(a) shall not apply to the incurrence, assumption or guarantee by the Company or any Restricted Subsidiary of Debt secured by, or the securing of any outstanding Debt of the Company or any Restricted Subsidiary by, one or more mortgages (other than mortgages permitted by Section 3.1(a)) that would otherwise be subject to the foregoing restrictions up to an aggregate amount which, together with (i) all other Debt of the Company and the Restricted Subsidiaries secured by mortgages (other than mortgages permitted by Section 3.1(a)) that would otherwise be subject to the foregoing restrictions and (ii) the Value of all Sale and Lease-Back Transactions involving Principal Properties in existence at such time (other than any Sale and Lease-Back Transaction described in Section 3.2(b)) does not at the time exceed 15% of Consolidated Net Tangible Assets. SECTION III.2. SALE AND LEASE-BACK TRANSACTIONS. The Company shall not and shall not permit any Restricted Subsidiary to, enter into any Sale and Lease-Back Transaction involving any Principal Property unless: (a) the Company or such Restricted Subsidiary would be permitted, pursuant to the provisions of Section 3.1(b), to incur Debt in a principal amount at least equal to the Value of the Sale and Lease-Back Transaction and to secure such Debt with a mortgage on the Principal Property to be leased, without equally and ratably securing the Senior Notes; or (b) the Company, within 120 days of the effective date of such Sale and Lease-Back Transaction (or in the case of (ii) below, within six months thereafter pursuant to a firm purchase commitment entered into within such 120-day period), causes to be applied an amount equal to the Value of such Sale and Lease-Back Transaction (i) to the payment or other retirement of Senior Notes or Funded Debt incurred or assumed by the Company which ranks senior to or pari passu with the Senior Notes or of Funded Debt incurred or assumed by any Restricted Subsidiary (other than, in either case, Senior Notes or Funded Debt owned by the Company or any Restricted Subsidiary), or (ii) to the purchase of a Principal Property (other than the Principal Property involved in such sale); and the consideration paid or payable to Louisiana-Pacific or a Restricted Subsidiary in connection with the sale or transfer of the property leased pursuant to such Sale and Lease-Back Transaction is at least equal to the fair value of such property (as determined by the Board of Directors of Louisiana-Pacific or a Person designated by such Board of Directors). SECTION III.3. OFFER TO REPURCHASE UPON CHANGE OF CONTROL. (a) Following the occurrence of a Change of Control, the Company shall make an offer (a "Change of Control Offer") to each Holder of Senior Notes to repurchase all or any part (equal to $1,000 or an integral multiple thereof) of such Holder's Senior Notes at a price in cash equal to 101% of the principal amount thereof, plus accrued and unpaid interest thereon to the date of purchase (the "Change of Control Payment"). The Change of Control Offer shall be made by mailing, within 30 days following the Change of Control, a notice to the Trustee and each Holder at the address appearing in the Security Register, by first class mail, postage prepaid, by the Company or, at the Company's request, by the Trustee in the -14-

name and at the expense of the Company, describing the transaction or transactions that constitute the Change of Control and offering to repurchase Senior Notes on the date specified in such notice, which date shall be no earlier than 30 days and no later than 60 days from the date such notice is mailed (the "Change of Control Payment Date"). The Company will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations under the Exchange Act to the extent such laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control. (b) On the Change of Control Payment Date, the Company shall, to the extent lawful, (i) accept for payment all Senior Notes or portions thereof properly tendered pursuant to the Change of Control Offer, (ii) deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Senior Notes or portions thereof so accepted, and (iii) deliver or cause to be delivered to the Trustee the Senior Notes so accepted together with an Officer's Certificate stating the aggregate principal amount of Senior Notes or portions thereof being purchased by the Company. The Paying Agent shall promptly mail to each Holder of Senior Notes so accepted the Change of Control Payment for such Senior Notes. In the event that any Senior Note is so accepted in part only, the Trustee shall promptly authenticate and mail (or cause to be transferred by book entry) to the Holder thereof a new Senior Note equal in principal amount to the unpurchased portion of such Senior Note; provided that each such new Senior Note will be in a principal amount of $1,000 or an integral multiple thereof. Acceptance of the Change of Control Offer by a Holder shall be irrevocable (unless otherwise provided by law). The payment of accrued interest as part of any repurchase price on any Change of Control Payment Date shall be subject to the right of Holders of record on the relevant Regular Record Date to receive interest due on an Interest Payment Date that is on or prior to such Change of Control Payment Date. (c) Notwithstanding anything to the contrary in this Section 3.3, the Company shall not be required to make a Change of Control Offer upon a Change of Control if (i) the Company has effected Defeasance or Covenant Defeasance of the Senior Notes as provided in Article V of the Indenture prior to the occurrence of the Change of Control or (ii) if a third party makes the Change of Control Offer in the manner, at the time and otherwise in compliance with the requirements set forth in this Section 3.3 and purchases all Senior Notes validly tendered pursuant to such Change of Control Offer. SECTION III.4. PERMITTING UNRESTRICTED SUBSIDIARIES TO BECOME RESTRICTED SUBSIDIARIES. The Company shall not permit any Unrestricted Subsidiary to be designated as a Restricted Subsidiary unless such Subsidiary is otherwise in compliance with all provisions of the Indenture and this Supplemental Indenture that apply to Restricted Subsidiaries. SECTION III.5. PAYMENT OFFICE. The Company shall cause a Payment Office for the Senior Notes to be maintained at all times in New York, New York. -15-

ARTICLE IV. ADDITIONAL EVENTS OF DEFAULT. SECTION IV.1. ADDITIONAL EVENTS OF DEFAULT. In addition to the Events of Default set forth in the Indenture, the term "EVENT OF DEFAULT," whenever used in the Indenture or this Supplemental Indenture with respect to the Senior Notes, means any one of the following events (whatever the reason for such Event of Default and whether it may be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree, or order of any court or any order, rule, or regulation of any administrative or governmental body): (a) the failure to redeem any Senior Note when required pursuant to the terms and conditions thereof or to pay the purchase price for any Senior Note to be purchased in accordance with Section 3.3 of this Supplemental Indenture; (b) any nonpayment at maturity or other default under any agreement or instrument relating to any other Indebtedness of the Company or any Restricted Subsidiary (the unpaid principal amount of which is not less than $25.0 million), and, in any such case, such default (i) continues beyond any period of grace provided with respect thereto and (ii) results in such Indebtedness becoming due prior to its stated maturity or occurs at the final maturity of such Indebtedness; PROVIDED, HOWEVER, that, subject to the provisions of Section 9.01 and 8.08 of the Indenture, the Trustee shall not be deemed to have knowledge of such nonpayment or other default unless either (1) a Responsible Officer of the Trustee has actual knowledge of nonpayment or other default or (2) the Trustee has received written notice thereof from the Company, from any Holder, from the holder of any such Indebtedness or from the trustee under the agreement or instrument, relating to such Indebtedness; (c) the entry of one or more final judgments or orders for the payment of money against the Company or any Restricted Subsidiary, which judgments and orders create a liability of $25.0 million or more in excess of insured amounts and have not been stayed (by appeal or otherwise), vacated, discharged, or otherwise satisfied within 60 calendar days of the entry of such judgments and orders; and (d) Events of Default of the type and subject to the conditions set forth in clauses (vi) and (vii) of Section 8.01(a) of the Indenture in respect of any Significant Subsidiary or, in related events, any group of Subsidiaries which, if considered in the aggregate, would be a Significant Subsidiary of the Company. ARTICLE V. DEFEASANCE. SECTION V.1. APPLICABILITY OF ARTICLE V OF THE INDENTURE. (a) The Senior Notes shall be subject to Defeasance and Covenant Defeasance as provided in Article V of the Indenture; PROVIDED, HOWEVER, that no Defeasance or Covenant Defeasance shall be effective unless and until: -16-

(i) there shall have been delivered to the Trustee the opinion of a nationally recognized independent public accounting firm certifying the sufficiency of the amount of the moneys, U.S. Government Obligations, or a combination thereof, placed on deposit to pay, without regard to any reinvestment, the principal of and any premium and interest on the Senior Notes on the Stated Maturity thereof or on any earlier date on which the Senior Notes shall be subject to redemption; (ii) there shall have been delivered to the Trustee the certificate of a Responsible Officer of the Company certifying, on behalf of the Company, to the effect that (A) such Defeasance or Covenant Defeasance shall not result in a breach or violation of, or constitute a default under, any agreement to which the Company is a party or violate any law to which the Company is subject and (B) no Event of Default or event that (after notice or lapse of time or both) would become an Event of Default has occurred and is continuing at the time of such deposit; and (iii) no Event of Default specified in Sections 8.01(a)(vi) and (vii) of the Indenture or event that (after notice or lapse of time or both) would become an Event of Default specified in Sections 8.01(a)(vi) and (vii) of the Indenture shall have occurred and be continuing at any time on or prior to the 124th calendar day after the date of such deposit (it being understood that this condition shall not be deemed satisfied until after such 124th calendar day). (b) Upon the exercise of the option provided in Section 5.01 of the Indenture to have Section 5.03 of the Indenture applied to the Outstanding Senior Notes, in addition to the obligations from which the Company shall be released specified in the Indenture, the Company shall be released from its obligations under Article III hereof. ARTICLE VI. REDEMPTION OF SENIOR NOTES. SECTION VI.1. RIGHT OF REDEMPTION. The Senior Notes may be redeemed by the Company in accordance with the provisions of the form of Securities set forth herein. ARTICLE VII. MISCELLANEOUS. SECTION VII.1. REFERENCE TO AND EFFECT ON THE INDENTURE. This Supplemental Indenture shall be construed as supplemental to the Indenture and all the terms and conditions of this Supplemental Indenture shall be deemed to be part of the terms and conditions of the Indenture. Except as set forth herein, the Indenture heretofore executed and delivered is hereby (i) incorporated by reference in this Supplemental Indenture and (ii) ratified, approved, and confirmed. SECTION VII.2. WAIVER OF CERTAIN COVENANTS. -17-

The Company may omit in any particular instance to comply with any term, provision, or condition set forth in Article III hereof if the Holders of a majority in principal amount of the Outstanding Senior Notes shall, by Act of such Holders, either waive such compliance in such instance or generally waive compliance with such term, provision or condition, but no such waiver shall extend to or affect such term, provision, or condition except to the extent so expressly waived, and, until such waiver shall become effective, the obligations of the Company and the duties of the Trustee in respect of any such term, provision, or condition shall remain in full force and effect. SECTION VII.3. SUPPLEMENTAL INDENTURE MAY BE EXECUTED IN COUNTERPARTS. This instrument may be executed in any number of counterparts, each of which shall be an original; but such counterparts shall together constitute but one and the same instrument. SECTION VII.4. EFFECT OF HEADINGS. The Article and Section headings herein are for convenience only and shall not affect the construction hereof. -18-

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, and their respective corporate seals to be hereunto affixed and attested, all as of the day and year first above written. [Seal] LOUISIANA-PACIFIC CORPORATION By: ------------------------------------ Name: ---------------------------------- Title: --------------------------------- Attest: Name: -------------------------------------- Title: ------------------------------------- BANK ONE TRUST COMPANY, N.A., as Trustee By: ------------------------------------ Name: ---------------------------------- Title: --------------------------------- Attest: Name: -------------------------------------- Title: ------------------------------------- -19-

STATE OF ) ) ss.: COUNTY OF ) On this ____ day of ________, 2000, before me personally came __________, to me known, who, being by me duly sworn, did depose and say that he/she is a _____________________ of LOUISIANA-PACIFIC CORPORATION, one of the entities described in and which executed the above instrument; that he/she knows the seal of said entity; that the seal or a facsimile thereof affixed to said instrument is such seal; that it was so affixed by authority of the Board of Directors of said entity, and that he/she signed his/her name thereto by like authority. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written. ------------------------------------- NOTARY PUBLIC -20-

STATE OF ) ) ss.: COUNTY OF ) On this ____ day of __________, 2000, before me personally came ____________, to me known, who, being by me duly sworn, did depose and say that he/she is a ____________________________ of BANK ONE TRUST COMPANY, N.A., one of the entities described in and which executed the above instrument; that he/she knows the seal of said entity; that the seal or a facsimile thereof affixed to said instrument is such seal; that it was so affixed by authority of the Board of Directors of said entity, and that he/she signed his/her name thereto by like authority. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this certificate first above written. ------------------------------------- NOTARY PUBLIC -21-