Minimum 3/8" APA Rated Siding Exterior Plywood
Typical Detail
This fire-rated wall assembly detail shows 3/8" APA rated plywood siding and Type X gypsum wallboard with optional insulation on 2x4 studs at 16" on center in 2D CAD format. Developed by APA – The Engineered Wood Association, this detail is drawn from APA publication Fire-Rated Systems, Form W305 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.
