Technical Document Library
Research-Backed Guidance for Every Project
Research-Backed Guidance for Every Project
Typical Details - DT-FR-1
This detail shows floor assembly of APA wood structural panel subfloor over plywood underlayment, building paper, and joists with gypsum wallboard ceiling below.
Technical Guides -
Market Analysis Reports - MKO-E191
Annual analysis of U.S., Canadian, and global economic factors impacting engineered wood demand, with multi-segment forecasts and historical production data. Available as PDF.
Case Studies - S115
This case study explains how glulam beams and engineered wood products shaped 2125 Franklin, a 735-bedroom mixed-use student housing building near the University of Oregon.
Data File - B840
This publication provides minimum requirements that plywood panels must meet to qualify for classification as APA 303 Series specialty siding.
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.
Technical Guides -
A Guide to the 2015 IRC Wood Wall Bracing Provisions
Technical Guides -
A Guide to the 2018 IRC Wood Wall Bracing Provisions + Free Digital 2021 Supplement
Technical Topic - TT-100
This publication describes the use of portal-frame design in engineered applications and as bracing in conventional light-frame construction
Technical Note - T230
This publication describes single- and double-layer all-wood floor assemblies for acoustic performance and includes both construction details and acoustic ratings
Construction Guide - M400
This publication explains the components of advanced framing in floor and wall framing, including illustrated construction details
Case Studies - T110
This case study explains how a Pennsylvania home builder gained a competitive advantage by adopting advanced framing techniques that deliver lasting energy savings to customers.
Technical Topic - TT-107
This publication answers questions regarding the performance of wood structural panels as air barriers
Case Studies - N110
This case study discusses how two mid-rise projects used all-wood podiums instead of concrete to cut construction costs, reduce building mass and improve sustainability.
Typical Details - DT-AF-1
This detail shows an alternative insulated 3-stud corner framing assembly with drywall clips to support the gypsum from one stud.
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.
Technical Guides - X400
This publication explains the APA panel trademark and quality standards for wood structural panels
Typical Details - DT-EWG-1
This detail shows an APA glued floor system using APA Rated Sturd-I-Floor or sheathing panels.
Technical Guides - B707
Learn the APA research facility capabilities, including assembly-level testing of roof and floor building components and performance evaluation of lateral force resisting systems
Typical Details - DT-EWG-2
This detail shows APA Rated sheathing panels installed as roof decking over rafters or trusses with panel clips, asphalt or wood shingles, and proper edge and joint spacing.
Typical Details - DT-EWG-3
This detail shows APA panel stair treads and risers installed on stringers in two configurations, using plywood, OSB, or composite panels with 8d common nail fastening.
Typical Details - DT-EWG-4
APA Rated sheathing panels installed as subflooring over 2x joists, I-joists, or floor trusses with tongue-and-groove or blocked edges on a wood-framed floor system.
Typical Details - DT-EWG-5
This detail shows APA Rated wall sheathing applied in two orientations- strength axis across or parallel to studs- with weather-resistive barrier and siding on a wood-framed wall.
Technical Guides - V691
Discusses specifications and design details for the APA panel-deck block pallet, including load capacity, nailing schedules and materials handling system compatibility.
Technical Note - R280
This publication provides specification and installation recommendations for panel subfloors to be used under hardwood flooring
Technical Guides - W345 CA
This publication describes connection requirements and application notes for APA Performance Rated Rim Board for Canadian Limit States Design
Technical Topic - TT-060
Provides a recommendation for foam plastic roof insulation over minimum Performance Category 15/32 engineered wood panels that meet the 15-minute thermal barrier requirement
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.
Specification Guide - SP-1103
This publication provides an overview of the APA trademark and includes a sample specification for APA Rated Sheathing.
Typical Details - DT-FR-2
This detail shows a fire-rated wall assembly using wood structural panel sheathing over studs with gypsum wallboard, fire protective membrane, and glass fiber insulation.
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.
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.
Technical Note - C465
This publication provides installation recommendations and test results for energy-saving APA Sturd-I-Wall construction
Specification Guide - SP-1102
This publication provides an overview of the APA trademark and includes a sample specification for APA Rated Sturd-I-Floor (OSB).
Specification Guide - SP-1102
This publication provides an overview of the APA trademark and includes a sample specification for APA Rated Sturd-I-Floor (Plywood).
Typical Details - DT-EWG-8
This detail shows APA Rated Sturd-I-Floor panel installation at 16", 20", or 24" o.c. joist spacing with tongue-and-groove edges over a floor framing system.
Typical Details - DT-EWG-9
This detail shows APA Rated Sturd-I-Floor panel installation at 32" or 48" o.c. joist spacing with tongue-and-groove joints over a crawl space floor framing system.
Typical Details - DT-EWG-10
This detail shows APA Rated Sturd-I-Floor 48 o.c. panels installed over a post-and-beam floor framing system with 4x4 posts, 4x girders, and tongue-and-groove panel edges.
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-13
This detail shows APA Rated vertical panel siding applied directly to wall framing in an APA Sturd-I-Wall system with weather-resistive barrier.
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-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-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
Technical Guides - Q230
This guide provides basic instructions for using the APA Wall Bracing Calculator
Technical Topic - TT-007
This publication recommends three methods for the installation of a wood floor system over a concrete slab: sleepers, rigid foam or direct.
Technical Topic - TT-126
Publication answers common questions about fire-protective coatings. Certification and inspection of products with fire-protective coatings are generally outside the scope of APA.
Case Studies - Q125
This case study explains how glulam beams were used to replace the flooring system of the historic Audrian Building, enabling the building to support multi-ton vintage automobiles.