Standards Development

APA has a long and extensive history in building codes and standards development activities. It serves, for example, as the secretariat for the standing committees of U.S. Product Standard PS 1 for Structural Plywood, the consensus softwood plywood standard, and Voluntary Product Standard PS 2, the U.S. harmonized performance standard developed under the U.S.-Canada Free Trade Agreement. APA has developed performance standards over the years for numerous products, including, for example, plywood siding, wood structural panel sheathing, structural glued laminated timber (glulam), wood I-joists, rim board, and cross-laminated timber. APA issues APA Product Reports designed to help manufacturers expedite market entry of their products.


APA Accreditations

APA is accredited by the following state, national or international organizations:


ANSI logoANSI Standards Development

As a national standards developer accredited by ANSI, APA has published or is in the process of developing the following national consensus standards.

Click on a standard to learn more: