Technical Document Library
Research-Backed Guidance for Every Project
Research-Backed Guidance for Every Project
Product Guide - E300
Describes the following for performance rated siding: face grades, textures and patterns; finishing; ordering/specifying; basic application recommendations
Research Report - E315
This publication describes tests of high-load diaphragms with multiple rows of fasteners, glued diaphragms, and diaphragms with openings
Research Report - Q260
This report includes test results of unblocked, stapled and metal-framed shear walls, and a summary of previous shear wall tests.
Product Guide - X440
This product guide provides an overview of APA trademarked glulam and discusses design considerations, applications and specification
Product Guide - K435
This publication describes the specification, advantages, applications and finishing recommendations of sanded plywood and includes trademark examples and explanations
Product Guide - B360
Describes high density overlay (HDO) and medium density overlay (MDO) plywood applications, properties and characteristics, and shop practice and finishing recommendations
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).
System Report - SR-101
This report discusses using wood structural panels to resist uplift from wind, including resistance to lateral shear forces and wind pressure perpendicular to the wall
System Report - SR-405
This system report provides guidance on fire protection of floors constructed with prefabricated wood I-joist assemblies that comply with 2015, 2018, 2021 and 2024 IRC updates
System Report - SR-103
This publication outlines a construction solution to meet the IRC’s lateral and wind uplift load requirements using wood structural panels with raised-heel, or energy-heel, trusses
Damage Assessment Report - SP-1182
This report summarizes the findings of a team of engineers who visited the site of a 2017 Texas windstorm to assess the damages sustained by residences
Research Report - M410
This report contains research results on force transfer around openings (FTAO). This study was a joint effort between APA, the USDA FPL and the UBC.
Damage Assessment Report - SP-1177
This publication contains damage assessments from the December 2015 tornado storm near Dallas, TX, including wind-resistant construction recommendations
Market Analysis Reports - QPRO-26
The APA Quarterly Production Report delivers comprehensive, up-to-date data on North American structural wood panel and engineered wood product markets
Market Analysis Reports - QPRO-26
The APA Quarterly Production Report delivers comprehensive, up-to-date data on North American structural wood panel and engineered wood product markets
Market Analysis Reports - MHRS-26
Monthly U.S. & Canadian housing market analysis covering starts, permits, home sales, mortgage rates, remodeling, and wood product demand indicators. Annual subscription.
Builder Tip - Q350
This publication describes recommended finishes and application recommendations for APA Rated Siding.
Data File - B840
This publication provides minimum requirements that plywood panels must meet to qualify for classification as APA 303 Series specialty siding.
Typical Details - DT-CWA-4
This detail shows R20 wall assembly with insulated siding (R2 min.), engineered wood or lumber header, wood structural panel sheathing, and R19 compressed fiberglass batts.
Technical Note - F410
This publication describes mechanism and construction features that contribute to siding buckling
Product Guide - F405
This product guide describes performance standards, applications, trademark and performance category information for APA Performance Rated Panels
Product Advisory - SP-1172
This product advisory contains results of testing to measure the shear wall performance of Thermo-Ply® sheathing
Technical Guides - S500
This publication describes the stringent product standards required for cross-laminated timber manufactured in North America, which may not be met by imported products
Typical Details - DT-BB-18
This detail shows window head and sill flashing with siding.
ESR Joint Evaluation Report - ESR-1301
OSB:
Product Advisory - SP-1185
This publication provides test results for imported plywood panels from Brazil, evaluated for conformance to U.S. Product Standard PS 1
Product Guide - W410
This product guide provides an overview of oriented strand board (OSB) and discusses OSB composition, properties, code acceptances and applications
Product Advisory - SP-1186
This publication discusses overstated published lateral load design properties of eight flexible structural sheathing products
Typical Details - DT-BB-19
This detail shows z-flashing installation at horizontal joint between APA panel siding.
Standards - L870
This publication is the national standard for performance requirements and marking plywood for construction and industrial uses.
Standards - ANSI A190.1-2022
This ANSI Standard contains requirements for the manufacture and quality control of structural glued laminated timber.
Technical Topic - TT-091
Details the layups for APA 303 grooved plywood sidings (T1-11 and reverse board & batten), representing minimal plywood siding constructions as typically found in the marketplace.
Typical Details - DT-EWG-12
This detail shows APA Rated horizontal panel siding applied directly to wall framing in an APA Sturd-I-Wall system.
Typical Details - DT-EWG-6
This detail shows APA Rated lap siding installed over wood structural panel sheathing with a weather-resistive barrier on a wood-framed exterior wall assembly.
Typical Details - DT-EWG-7
This detail shows APA Rated siding panels applied over wood structural panel sheathing with a weather-resistive barrier on a wood-framed wall assembly.
Typical Details - DT-FR-4
This detail shows a one-hour fire-rated wood-framed wall assembly with Type X gypsum sheathing and wallboard, optional insulation, and APA rated siding exterior finish.
Typical Details - DT-FR-8
This detail shows fire-rated wall assembly detail of 3/8" APA rated plywood siding over Type X gypsum wallboard with optional insulation on 2x4 studs at 16" on center.
Green Verification Report - GR-L274
I-Joists:
Standards - ANSI/APA PRP 210-2024
This ANSI/APA standard provides requirements and test methods for qualification and quality assurance for performance-rated engineered wood siding.
Standards - S350
Performance requirements, adhesive bond performance, panel construction and workmanship, dimensions and tolerances, marking and moisture content of wood structural panels.
Technical Guides - Q250
Determine the type and spacing of siding fasteners to meet building code requirements when using wood structural panel sheathing as a nail base (also called nailable sheathing)
Technical Topic - TT-021
Table of recommended uniform live loads for PS 1 APA 303 siding when used as open soffit or combined roof decking-ceiling with long dimension perpendicular to supports.
Green Verification Report - GR-L259
I-Joists:
Green Verification Report - GR-L289
Rim Board, SCL:
Technical Guides - C800
Describes common engineered wood products: plywood, oriented strand board (OSB), I-joist, glued laminated timber (glulam), structural composite lumber (SCL) and rim board.
Product Guide - H650
This publication covers SIP advantages, applications, design and construction considerations, connection details, assembly and related topics.
Technical Note - C465
This publication provides installation recommendations and test results for energy-saving APA Sturd-I-Wall construction
Typical Details - DT-FR-3
This detail shows fire-rated exterior wall assembly with APA rated siding over sheathing, insulation, 2x4 wood framing at 16" on center and Type X gypsum wallboard interior finish.