Excerpt from the Engineered Wood Construction Guide, Form E30. Includes application recommendations for APA structural panel wall sheathing, single-wall siding and panel and lap siding installation over sheathing. Siding joint details, siding patterns and grades, exterior finish recommendations and panel shear wall construction are also covered. Only available as a downloadable pdf file. Revised December 2019.

Provides five basic steps to construct energy-saving wood wall systems that meet code, are durable to the forces of nature, and save homeowners money. Issued December 2008.

Describes recommended finishes and application recommendations for APA Rated Siding. Revised May 2013. 

Describes High Density Overlay (HDO) and Medium Density Overlay (MDO) plywood applications, properties and characteristics, plus shop practice and finishing recommendations. Updated October 2011.

Covers face grades, textures and patterns, finishing and refinishing, how to order and specify, basic application recommendations. Revised June 2009.

Describes the specification, advantages, applications and finishing recommendations of sanded plywood. Includes trademark examples and explanations. Revised May 2011.

Development of methodology and performance criteria for a siding performance standard. Revised February 1999.

Development of methodology for evaluating buckle performance and edge stability for inclusion in the performance standard for APA Rated Siding. Revised March 1997.

Installation recommendations and test results for energy-saving APA Sturd-I-Wall® Construction. Revised August 2006. 

Describes mechanism and construction features that contribute to siding buckling. Available only as a downloadable PDF. Updated February 2009.