Building Materials Holding (BLGM) 10-Q 2003 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned hereby certifies, in his capacity as an officer of Building Materials Holding Corporation (the “Company”), for purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of his knowledge:

•the Quarterly Report of the Company on Form 10-Q for the period ended June 30, 2003 fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

•the information contained in such report fairly presents, in all material respects, the financial conditi on and results of operation of the Company.

Dated:  August 14, 2003

/s/ Robert E. Mellor

Chairman of the Board, President and

Chief Executive Officer

(Principal Executive Officer)

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