APA - The Engineered Wood Association

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Residential Construction

APA offers resources and instructions to help builders construct durable homes that withstand the elements.

  • Build a Better Home: APA’s moisture management program for professionals offers detailed floor, wall and roof assemblies to mitigate moisture intrusion.
  • Building to Withstand Forces of Nature: Why fully sheathed walls of plywood or OSB are strong barriers that resist the persistent forces of wind and earthquakes.
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APA Simplified Wall Bracing Method


SR-102: APA Simplified Wall Bracing Method Using Wood Structural Panel Continuous Sheathing

This free APA system report details a new wall bracing method that offers more design flexibility and simpler code compliance.

Guide to the 2012 Bracing Provisions


Guide to the 2012 IRC Wood Wall Bracing Provisions

Latest wood wall bracing guide provides an explanation of the lateral bracing provisions of the 2012 IRC.