Technical Document Library
Research-Backed Guidance for Every Project
Research-Backed Guidance for Every Project
Technical Guides - E30
This publication provides a comprehensive overview of engineered wood construction systems for residential, commercial and industrial buildings
Technical Guides - D510
This publication describes recommended design capacities (ASD) and design methods for wood structural panels manufactured under PS 1 and PS 2 and APA Performance Standard PRP-108.
Technical Guides - M310
This publication illustrates nine construction details that improve wind resilience in residential construction, with real-world examples of each design
Construction Guide - M400
This publication explains the components of advanced framing in floor and wall framing, including illustrated construction details
Technical Guides - L350
This publication provides design and construction recommendations for engineered diaphragm systems in floor, shear wall and roof systems
Technical Guides - S475
This publication provides recommended design load tables for glulam beam roof and floor applications
Technical Guides - W305
This publication is a guide to cost-effective fire-rated wood and wood structural panel systems that meet code requirements
Product Guide - F405
This product guide describes performance standards, applications, trademark and performance category information for APA Performance Rated Panels
Product Guide - W410
This product guide provides an overview of oriented strand board (OSB) and discusses OSB composition, properties, code acceptances and applications
Product Guide - X440
This product guide provides an overview of APA trademarked glulam and discusses design considerations, applications and specification
Standards - L870
This publication is the national standard for performance requirements and marking plywood for construction and industrial uses.
Standards - S350
Performance requirements, adhesive bond performance, panel construction and workmanship, dimensions and tolerances, marking and moisture content of wood structural panels.
Standards - ANSI/APA PRG 320-2025
This ANSI/APA standard provides requirements and test methods for qualification and quality assurance for performance-rated cross-laminated timber (CLT).
Standards - ANSI A190.1-2022
This ANSI Standard contains requirements for the manufacture and quality control of structural glued laminated timber.
Technical Note - T555
This technical note presents a rational analysis for applying FTAO to walls with asymmetric piers and walls with multiple openings, based on APA modeling and testing
Technical Note - Q225
This publication contains uniform load tables for APA trademarked wood structural panels that are manufactured and qualified in accordance with PS 1, PS 2 and APA PRP-108
Technical Topic - TT-100
This publication describes the use of portal-frame design in engineered applications and as bracing in conventional light-frame construction
System Report - SR-102
This report provides an approach to meet the requirements of the 2024, 2021, 2018, 2015 and 2012 IRC simplified wall bracing (Section R602.12).
FAQ - F505
This publication answers questions about structural plywood and OSB panel performance, grade, growth and natural characteristics.
FAQ - X501
This publication provides guidance about the serviceability of wood structural panels (plywood and OSB) after exposure to high levels of moisture.
Builder Tip - S300
This publication describes how to reduce nail pops through recommended fastener selection and installation