Exhibit 32.1

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. Section 1350, as Adopted

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, Doyle R. Simons, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that this Quarterly Report on Form 10-Q fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in this Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Temple-Inland Inc.

/s/ Doyle R. Simons

Doyle R. Simons

Chief Executive Officer

May 10, 2011

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