Technical Document Library

2026 Structural Panel & Engineered Wood Yearbook 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.

A Guide To Engineered Wood Products 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.

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Advanced Framing Construction Guide - M400 This publication explains the components of advanced framing in floor and wall framing, including illustrated construction details

ANSI/APA PRR 410-2021: Standard for Performance-Rated Engineered Wood Rim Boards Standards - ANSI/APA PRR 410 This standard provides requirements and test methods for qualification and quality assurance for performance rated engineered wood rim board.

2024 Multi products OSB and plywood panels

APA - The Mark of Quality for Wood Structural Panels Technical Guides - X400 This publication explains the APA panel trademark and quality standards for wood structural panels

APA Laboratory Testing Capabilities B707 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

APA Panel Roof Sheathing 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.

APA Performance-Rated Rim Board - Canadian Limit States Design Technical Guides - W345 CA This publication describes connection requirements and application notes for APA Performance Rated Rim Board for Canadian Limit States Design

APA Performance-Rated Rim Boards Technical Guides - W345 This publication details connection requirements and application notes for APA Performance Rated Rim Board

APA PRR-401: Performance Standard for APA Rim Boards Standards - PRR-401 This APA Standard provides dimension and tolerances, performance requirements, test methods and qualification policy for APA Performance Rated Rim Board.

APA System Report 101: Design for Combined Shear and Uplift from Wind 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

Applicability of APA Trademarks on Engineered Wood Products Surface-Coated with Fire Protective Coatings 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.

Building for High-Wind Resilience in Light-Frame Wood Construction Technical Guides - M310 This publication illustrates nine construction details that improve wind resilience in residential construction, with real-world examples of each design

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Controlling Decay in Wood Construction Technical Note - R495 This publication discusses decay fungi and how to prevent/minimize degradation of wood through proper design, storage, construction and maintenance

Data File: APA Rim Board in Fire Rated Assemblies Data File - D350 This publication provides recommendations for the use of APA rim board in conjunction with fire-rated wall/floor assemblies, based on the US Forest Product Laboratory testing

APA-Generic-Content-Card-Technical-Topic

Deflection Limits in the 2018 IBC for Engineered Wood Products Technical Topic - TT-123 This publication clarifies the applicability of the D+L deflection limits specified in Table 1604.3 of the 2018 IBC, specifically as they pertain to engineered wood products.

Destruction of Insects During Manufacture of Wood Structural Panels and Structural Composite Lumber Technical Topic - TT-014 This publication describes various wood structural panel manufacturing processes that result in the eradication of insects

Engineered Wood Construction Guide Technical Guides - E30 This publication provides a comprehensive overview of engineered wood construction systems for residential, commercial and industrial buildings

Engineered Wood Construction Guide: Additional Fire and Building Systems Excerpt - E30X-AFBS Summary of special systems, including fire resistant construction, fire protected assemblies, wind-resistive roofs, energy conservation and panels over metal framing

Engineered Wood Construction Guide: Floor Construction Excerpt - E30X-FC This publication is an excerpt from the APA Engineered Wood Construction Guide, providing information about floor framing and wood structural panel products

Engineered Wood Construction Guide: Rim Board Selection and Specification Excerpt - E30X-RB This publication is an excerpt from the APA Engineered Wood Construction Guide, providing guidance on selecting and specifying rim board

The Village Senior Living Building at Germantown in Germantown, Tennessee

Engineered Wood Floor Systems (Canada) Construction Guide - R300 Provides specification recommendations for plywood and OSB floor systems, the APA Glued Floor System and installation recommendations for panel subflooring and underlayment

Engineered Wood Handbook & Grade Glossary Technical Guides - X505 This publication provides a list of engineered wood products and common construction terminology explained in easy-to-understand language.

Engineered Wood Products Help Navigate Design Challenges and Tariffs for North Carolina Senior Living Project Case Studies - C440 This case study discusses how engineered wood products helped overcome structural, acoustic and cost challenges at a North Carolina senior living expansion project.

Engineered Wood Wall Systems (Canada) Construction Guide - R310 This publication provides an overview of commonly used wall systems and explains how wood structural panels can be used to meet fundamental requirements in wall applications

ESR Joint Evaluation Report - ESR-1210 Roseburg Forest Products Company Rim Board, SCL:
RigidLam® Laminated Veneer Lumber (LVL) and RigidRim® LVL Rim Board

ESR Joint Evaluation Report - ESR-2909 PWT Rim Board, SCL:
PWT™ Laminated Veneer Lumber (LVL), PWT™ Treated LVL and PWT™ Rim Boards

Exterior Deck Water-Resistive System Typical Details - DT-BB-3 This detail shows exterior deck ledger connection to wood I-joist floor system of water-resistant flashing.

Fire-Rated Systems Design and Construction Guide Technical Guides - W305 This publication is a guide to cost-effective fire-rated wood and wood structural panel systems that meet code requirements

Flame Spread Index of APA Performance-Rated Wood Structural Panels Technical Topic - TT-010 This publication summarizes surface burning characteristics (flame spread and smoke development) of wood structural panels tested in accordance with ASTM E84

Formaldehyde and Engineered Wood Products Technical Note - J330 This publication addresses concerns related to formaldehyde in engineered wood products and explains their exemption from leading formaldehyde emission standards and regulations.

Green Verification Report - GR-L233 PWT SCL, Rim Board:
PWT™ Laminated Veneer Lumber and Rim Board

Green Verification Report - GR-L289 Roseburg Forest Products Company Rim Board, SCL:
RigidLam® LVL, RigidRim® LVL Rim Board

Green Verification Report - GR-L343 Zip-O-Laminators, LLC Glulam, Rim Board:
Zip-O-Laminators Glulam, Zip-Rim

Holes in Blocking Used in Engineered Wood Construction Technical Topic - TT-040 This publication discusses the placement of holes in the webs of I-joists or rim board when used as blocking for lateral restraint of floor and roof joists

Holes in Structural Glued Laminated Timber (Glulam) Rim Board in Light-Frame Wood Construction Technical Topic - TT-135 Provides recommendations for hole size and segment length for glulam rim board for situations where holes are not specified in the construction documents or shop drawings.

Horizontal Beltline Joints Typical Details - DT-EWG-22 This detail shows three horizontal beltline joint configurations for APA panel siding at floor lines in multistory construction.

Horizontal Wall Joints Typical Details - DT-EWG-23 This detail shows three horizontal joint configurations for APA panel siding — butt and flash, lap, and shiplap — each with blocking flatwise or edgewise at the joint location.

I-Joist Floor Details for 2-Inch-Thick Foundation Foam Insulation Technical Topic - TT-129 This publication presents four construction details for incorporating 2-inch-thick foundation foam insulation into residential I-joist floor assemblies.

Monthly Housing Report Annual Subscription 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.

Mulching Engineered Wood Products: An Alternative to Landfills Technical Topic - TT-098 This publication discusses the benefits of mulching construction-related wood scraps, including glued engineered wood products

Nail Spacing Recommendations for APA EWS Rim Boards and I-joists Technical Topic - TT-094 This publication provides tables of the minimum recommended nail spacing for APA EWS Rim Boards and I-joists.

APA Product Reports - PR-L233 PWT Rim Board, SCL:
PWT™ Laminated Veneer Lumber and Rim Board

APA Product Reports - PR-L233C PWT SCL, Rim Board:
PWT™ Laminated Veneer Lumber and Rim Board

APA Product Reports - PR-L269 WFP Engineered Products, LLC Glulam, Rim Board:
WFP GL 3000 Glulam and WFP Rim

APA Product Reports - PR-L289 Roseburg Forest Products Company Rim Board, SCL:
RigidLam® LVL and RigidRim® LVL Rimboard

APA Product Reports - PR-L289C Roseburg Forest Products Company Rim Board, SCL:
RigidLam® LVL and RigidRim® LVL Rimboard

APA Product Reports - PR-L304 Rosboro Rim Board:
X-RIM Board

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