R20 Wall—Advanced Framing Techniques
Typical Detail
This detail shows and R20 advanced framed wall assembly with studs spaced at 24" on center minimum, an insulated corner, an EWP or lumber header, R19 compressed fiberglass batts, and WSP sheathing in 2D CAD format. Developed by APA – The Engineered Wood Association, this detail is drawn from APA publication IECC Compliance Options for Wood-Frame Wall Assemblies, Form P320 and reflects decades of engineered wood research, testing and field-proven best practices.
This 2D detail is designed for architects, engineers, contractors and building professionals and provides clear, code-compliant guidance.
Available in multiple formats including DWG (AutoCAD), RVT (Revit), and PDF, this detail helps building professionals streamline the design and construction process while ensuring structural integrity and proper installation of engineered wood products.
Published by APA — The Engineered Wood Association.
