Registration No. 333-91693
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                          ----------------------------

                         POST-EFFECTIVE AMENDMENT NO. 1

                                       TO

                                    FORM S-8
                          REGISTRATION STATEMENT UNDER
                           THE SECURITIES ACT OF 1933
                          ----------------------------

                          LOUISIANA-PACIFIC CORPORATION
             (Exact name of registrant as specified in its charter)

             Delaware                                    93-0609074
       (State of incorporation)                (IRS Employer Identification No.)

             414 Union Street, Suite 2000
             Nashville, Tennessee                                   37219
       (Address of principal executive offices)                   (Zip Code)

                    LOUISIANA-PACIFIC EXECUTIVE LOAN PROGRAM
                            (Full title of the plan)

                                Anton C. Kirchhof
                                    Secretary
                          Louisiana-Pacific Corporation
                                805 S.W. Broadway
                             Portland, Oregon 97205
                            Telephone (503) 821-5100
           (Name, address, and telephone number of agent for service)

DEREGISTRATION Pursuant to Registration Statement on Form S-8 (No. 333-91693) filed with the Securities and Exchange Commission on November 26, 1999, Louisiana-Pacific Corporation, a Delaware corporation, registered 1,700,000 shares of common stock, $1.00 par value per share, for issuance under the Louisiana-Pacific Executive Loan Program. Of the 1,700,000 shares originally registered, 1,163,882 shares were sold. The Registration Statement is hereby amended to deregister 536,118 shares of common stock, $1.00 par value per share, of Louisiana-Pacific Corporation. II-1

SIGNATURES The Registrant. Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this post-effective amendment to registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Portland, state of Oregon, on the 13th day of August, 2004. LOUISIANA-PACIFIC CORPORATION (Registrant) By /s/ Curtis M. Stevens -------------------------------------- Curtis M. Stevens Executive Vice President, Administration and Chief Financial Officer Pursuant to the requirements of the Securities Act of 1933, this post-effective amendment to registration statement has been signed by the following persons in the capacities indicated as of the 13th day of August, 2004. Signature Title --------- ----- (1) Principal Executive Officer and Director: MARK A. SUWYN* Chief Executive Officer, Chairman of the Board, Director (2) Principal Financial Officer: /s/ Curtis M. Stevens Executive Vice President, -------------------------- Administration and Chief Financial Curtis M. Stevens Officer (3) Principal Accounting Officer: /s/ Russell S. Pattee Corporate Controller and Assistant -------------------------- Treasurer Russell S. Pattee II-2

(4) A majority of the Board of Directors: /s/ E. Gary Cook Director -------------------------- E. Gary Cook ARCHIE W. DUNHAM* Director /s/ Daniel K. Frierson Director -------------------------- Daniel K. Frierson /s/ Paul W. Hansen Director -------------------------- Paul W. Hansen BRENDA J. LAUDERBACK* Director /s/ Dustan E. McCoy Director -------------------------- Dustan E. McCoy /s/ Lee C. Simpson Director -------------------------- Lee C. Simpson /s/ Colin D. Watson Director -------------------------- Colin D. Watson *By /s/ Anton C. Kirchhof --------------------- Anton C. Kirchhof Attorney-in-fact II-3