Simpson Manufacturing (SSD) 10-Q 2010 Q1 Quarterly report

Exhibit 32

Simpson Manufacturing Co., Inc. and Subsidiaries

Section 1350 Certifications

The undersigned, Thomas J Fitzmyers and Karen Colonias, being the duly elected and acting Chief Executive Officer and Chief Financial Officer, respectively, of Simpson Manufacturing Co., Inc., a Delaware corporation (the “Company”), hereby certify that the quarterly report of the Company on Form 10-Q for the quarterly period ended March 31, 2010, fully complies with the requirements of section 13(a) of the Securities Exchange Act of 1934, as amended, and that information contained in such report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:	May 7, 2010	/s/Thomas J Fitzmyers
		Thomas J Fitzmyers
		Chief Executive Officer
		/s/Karen Colonias
		Karen Colonias
		Chief Financial Officer

A signed original of this written statement required by Section 1350 of Chapter 63 of Title 18 of the United States Code has been provided to Simpson Manufacturing Co., Inc. and will be retained by Simpson Manufacturing Co., Inc. and furnished to the Securities and Exchange Commission or its staff on request.