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Exhibit 10.5(f)

February 25, 2003
Louisiana-Pacific Corporation
850 SW Broadway, Suite 1200
Portland, Oregon 97205
Attn: Vice President and Chief Financial Officer
Re:
 
Standby Purchase and Note Support Agreement, dated as of August 16, 1999 among
Louisiana-Pacific Corporation, a Delaware Corporation ("L-P"), Bank of America,
N.A., a national banking association ("BofA"), and Canadian Imperial Bank of
Commerce, a Canadian chartered bank ("CIBC") (as amended or modified from time
to time, the "Agreement").

Ladies and Gentlemen:

        L-P has advised BofA and CIBC that it is entering into a Fifth Amendment
of even date herewith (the "Amendment") by and among L-P, BofA as Agent and as
Lender and the other Lenders party to that certain Credit Agreement dated as of
November 15, 2001 (as amended or modified from time to time, the "Credit
Agreement"). The Amendment amends certain provisions of the Credit Agreement as
more fully set forth therein. A copy of the Amendment is attached hereto as
Exhibit A.

        Because the Agreement incorporates by reference certain of the
provisions of the Credit Agreement without giving effect to any amendment
thereof unless consented to by BofA and CIBC (the "Standby Lenders"), L-P has
asked the Standby Lenders to consent to the execution by L-P of the Amendment.
By their respective signatures below, BofA and CIBC hereby consent to the
execution and delivery of the Amendment by the parties thereto. BofA and CIBC
further agree that, to the extent covenants and representations and warranties
in the Credit Agreement are incorporated by reference into the Agreement, such
covenants, representations and warranties as incorporated shall be deemed
amended as set forth in the Amendment.

[Signature Page Follows]

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Very truly yours,  
BANK OF AMERICA, N.A.
 
By:
 
 
   

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CANADIAN IMPERIAL BANK OF COMMERCE
 
By:
 
 
   

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ACKNOWLEDGED AND AGREED:
 
LOUISIANA-PACIFIC CORPORATION
 
By:
 
 
   

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Exhibit 10.5(f)