APA - The Engineered Wood Association

Publications Featuring Oriented Strand Board (OSB)

In this section, you will find publications that will help you design, specify and build with APA trademarked OSB.

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APA System Report: Use of Wood Structural Panels for Energy-Heel Trusses

This APA System Report outlines an efficient, cost-effective construction solution for meeting the lateral and wind uplift load requirements of the IRC using wood structural panels with raised-heel, or energy-heel, trusses. Issued March 2014. (Form SR-103 - 12 pages)

3/27/2014 $1.00 APA System Report: Use of Wood Structural Panels for Energy-Heel Trusses (Purchase Paper Copy) Free APA System Report: Use of Wood Structural Panels for Energy-Heel Trusses (PDF Download)
319 K

Product Guide: Performance Rated Panels

Describes performance standards for structural wood panels and the compositions of different types of APA panels with the Performance Rated designations of APA RATED SHEATHING, APA RATED STURD-I-FLOOR and APA RATED SIDING. It also describes the typical applications where Performance Rated panels are used and provides updated trademark and performance category information. Availalbe only as a downloadable PDF. Revised December 2011 (Form F405 - 14 pages)

12/31/2011 Free Product Guide: Performance Rated Panels (PDF Download)
2.8 MB

Product Guide: Oriented Strand Board

Describes OSB composition, properties, code acceptances, and applications. Revised February 2009. (Form W410 - 12 pages)

2/28/2009 $2.00 Product Guide: Oriented Strand Board (Purchase Paper Copy) Free Product Guide: Oriented Strand Board (PDF Download)
3.5 MB

Product Guide: Oriented Strand Board, French Canadian version

French Canadian version of W410, Oriented Strand Board. (Form CF W415 - 12 pages)

$2.00 Product Guide: Oriented Strand Board, French Canadian version (Purchase Paper Copy)

Performance Panels Overview

Engineered wood Performance Panel presentation covering production attributes and non-construction and industrial uses. More information available at performancepanels.com. Updated April 7, 2013

4/7/2013 Free Performance Panels Overview (PDF Download)
6.2 MB

Product Guide: Structural Insulated Panels

This brochure covers SIP advantages, applications, design and construction considerations, assembly and related topics. Numerous connection details also are included. Issued December 2007. (Form H650 - 20 pages)

12/4/2007 $2.00 Product Guide: Structural Insulated Panels (Purchase Paper Copy) Free Product Guide: Structural Insulated Panels (PDF Download)
1.2 MB

Spanish: Presentación de paneles de desempeño (Performance Panels Overview)

Un resumen sobre la producción, las características y usos industriales de paneles de madera diseñados. (Spanish version of Performance Panels Overview). Revised April 7, 2013

4/7/2013 Free Spanish: Presentación de paneles de desempeño (Performance Panels Overview) (PDF Download)
5.8 MB

Fire-Rated Systems

Guide to wood panel systems that meet code and insurance recommendations. Updated June 2005. (Form W305 - 24 pages)

6/9/2005 $3.00 Fire-Rated Systems (Purchase Paper Copy) Free Fire-Rated Systems (PDF Download)
5.5 MB

Brace Walls with Wood

Updated version of Whole House Wall Bracing brochure. Provides information on wall bracing including code requirements and narrow bracing options for greater design flexibility. Revised November 2008. (Form G440 - 8 pages)

11/24/2008 $2.00 Brace Walls with Wood (Purchase Paper Copy) Free Brace Walls with Wood (PDF Download)
1.8 MB

Specification Guide: Short Form for Panels

Sample specifications for Sheathing, Sturd-I-Floor, Siding, and Sanded Panels. Available only as a downloadable PDF. Updated July 2010. (Form Y310 - 2 pages)

7/31/2010 Free Specification Guide: Short Form for Panels (PDF Download)
200 K

Engineered Wood Handbook & Grade Glossary

Engineered wood products and common construction terminology explained in easy-to-understand language. Replaces the Panel Handbook and Grade Glossary. Available only as a downloadable PDF file. Revised June 2012. (Form X505 - 53 pages)

6/22/2012 Free Engineered Wood Handbook & Grade Glossary (PDF Download)
4.3 MB

Narrow Walls That Work

THIS PUBLICATION HAS BEEN DISCONTINUED. Please refer to Form G440 for more information on this topic. (Form D420)

Installation of Stucco Exterior Finish Over Structural Wood Panel Wall Sheathing

Describes recommended wall construction methods for the installation of stucco exterior finish over structural wood panel wall sheathing. Updated September 2006. Available only as a downloadable pdf file. (Form Q370 - 6 pages)

9/20/2006 Free Installation of Stucco Exterior Finish Over Structural Wood Panel Wall Sheathing (PDF Download)
231 K

Hurricane Shutter Design Considerations for Florida

Region-specific information offers a collection of five hurricane shutter designs with recommendations for a variety of window & door openings in masonry & wood-frame buildings. Available only as a free downloadable PDF. Updated September 2013. (Form T460 - 22 pages)

9/16/2013 Free Hurricane Shutter Design Considerations for Florida (PDF Download)
2.8 MB

Designing for Combined Shear and Wind Uplift

THIS PUBLICATION HAS BEEN DISCONTINUED. Please refer to Form SR-101 for more information on this topic. (Form K325 - 4 pages)

8/7/2012

APA System Report: APA Simplified Wall Bracing Method

The Simplified Wall Bracing Method described in this report provides building officials, builders and designers with an approach and the supporting technical information to meet the requirements of the 2012 IRC Simplified Wall Bracing (Section R601.12). In the development of this report, the 2012 IRC Simplified Wall Bracing has been modified to increase its applicability to a greater percentage of home designs. To achieve broad applicability and acceptance, the system uses the most common type of wall sheathing, wood structural panels, based on their superior structural performance.

This latest version expands the minimum required bracing by increasing the basic wind speed to 100 mph or less and the Wind Exposure Category to be B or C. It also adds partial credits to 8-foot walls from the existing 9-foot only walls. Revised February 2013. (Form SR-102 - 12 pages)

3/11/2013 $1.00 APA System Report: APA Simplified Wall Bracing Method (Purchase Paper Copy) Free APA System Report: APA Simplified Wall Bracing Method (PDF Download)
698 K

Builder Tips: Storage and Handling of APA Trademarked Panels

Provides guidelines to help protect panels from damage in storage, during shipment, and on the job site. Revised May 2013. Now view on mobile devices. Go to: www.apawood.org/buildertips. (Form U450 - 2 pages)

1/28/2013 $0.50 Builder Tips: Storage and Handling of APA Trademarked Panels (Purchase Paper Copy) Free Builder Tips: Storage and Handling of APA Trademarked Panels (PDF Download)
711 K

Case Study: Bear Hill Condominiums

A switch from gypsum wallboard to oriented strand board wall sheathing decreased cost, and increased labor efficiency and quality for this multifamily development. Revised May 2003. (Form X160 - 2 pages)

5/31/2003 $0.50 Case Study: Bear Hill Condominiums (Purchase Paper Copy) Free Case Study: Bear Hill Condominiums (PDF Download)
278 K

Case Study: Philip Merrill Environmental Center

Reaching the apex of sustainable design, the environmental center achieved LEED Platinum status through inspired use of engineered wood products. Issued March 2007. (Form H120 - 2 pages)

3/31/2007 $0.50 Case Study: Philip Merrill Environmental Center (Purchase Paper Copy) Free Case Study: Philip Merrill Environmental Center (PDF Download)
202 K

Case Study: Gunter Primary School

Constructed of all wood, this Texas school's unique design concept features wood in exposed and hidden structural applications. Issued March 2007. (Form G170 - 2 pages)

3/31/2007 $0.50 Case Study: Gunter Primary School (Purchase Paper Copy) Free Case Study: Gunter Primary School (PDF Download)
205 K

Case Study: Las Vegas Elementary School

The Lamb of God Lutheran Elementary School and Administration Building in Las Vegas, described in this case study, features fully sheathed walls. Issued June 2005. (Form F120 - 2 pages)

6/7/2005 $0.50 Case Study: Las Vegas Elementary School (Purchase Paper Copy) Free Case Study: Las Vegas Elementary School (PDF Download)
197 K

Wood Sheathing Builds Business

Three residential builders cut callbacks, improve customer relations, and meet code requirements using wood structural panels. This publication describes how three builders in Idaho, Texas, and Ohio gained a competitive edge by fully sheathing the walls of their homes with plywood or OSB. The builders reported improved structural performance and fewer appearance-related callbacks. The testimonials from the builders are consistent with the findings of a recent study conducted by the National Association of Home Builders Research Center. The builders surveyed reported increased racking strength, superior shear resistance, better nailing substrate, and other performance advantages with wood structural panels, compared to other non-structural products. Issued October 2005 (Form F125 - 4 pages)

10/31/2005 $1.00 Wood Sheathing Builds Business (Purchase Paper Copy) Free Wood Sheathing Builds Business (PDF Download)
470 K

PS 2-10, Performance Standard for Wood-Based Structural-Use Panels

The APA edition of the updated structural-standard is published with typical APA trademarks and provides information on performance requirements, adhesive bond performance, panel construction and workmanship, dimensions and tolerances, marking, and moisture content of structural-use panels. Revised June 2011. (Form S350 - 64 pages)

6/20/2011 $4.00 PS 2-10, Performance Standard for Wood-Based Structural-Use Panels (Purchase Paper Copy) Free PS 2-10, Performance Standard for Wood-Based Structural-Use Panels (PDF Download)
1.3 MB

Performance Standards and Qualification Policy for Structural-Use Panels

APA PRP-108 - Describes requirements and test methods for APA Performance Rated Panels. Quality Assurance policy is now found in a separate document, Form B455. Revised May 2002 (Form E445 - 74 pages)

5/15/2002 $4.00 Performance Standards and Qualification Policy for Structural-Use Panels (Purchase Paper Copy) Free Performance Standards and Qualification Policy for Structural-Use Panels (PDF Download)
829 K

APA Quality Assurance Policies for Structural-Use Panels Qualified to PRP-108

Includes policies and procedures for APA Quality Assurance options, which was previously incorporated in APA PRP-108, Performance Standards and Policies, Form E445. Issued May 2002. (Form B455 - 40 pages)

5/31/2002 $3.00 APA Quality Assurance Policies for Structural-Use Panels Qualified to PRP-108 (Purchase Paper Copy) Free APA Quality Assurance Policies for Structural-Use Panels Qualified to PRP-108 (PDF Download)
711 K

Panel Design Specification

Recommended design capacities (ASD) and design methods for wood structural panels manufactured under Voluntary Product Standards PS1 and PS2, and APA Performance Standard PRP-108. Includes updated EA-perp values for OSB. Revised May 2012. (Form D510 - 28 pages)

5/18/2012 $3.00 Panel Design Specification (Purchase Paper Copy) Free Panel Design Specification (PDF Download)
3.0 MB

Technical Topics: Allowable Bearing Stress For APA Wood Structural Panels

Results of bearing tests conducted on plywood and OSB specimens of different thicknesses sampled from various mills by APA. Available as downloadable PDF only. Revised January 18, 2013. (Form TT-001 - 3 pages)

1/18/2013 Free Technical Topics: Allowable Bearing Stress For APA Wood Structural Panels (PDF Download)
775 K

Technical Note: APA Performance Rated Panel Subfloors Under Hardwood Flooring

Specification and installation recommendations for panel subfloors to be used under hardwood flooring. Updated June 2010. Available only as a downloadable PDF. (Form R280 - 2 pages)

6/30/2010 Free Technical Note: APA Performance Rated Panel Subfloors Under Hardwood Flooring (PDF Download)
230 K

Technical Note: Finishing Exposure 1 OSB Sheathing

Finishing recommendations for oriented strand board panels used for interior applications and soffits. Revised April 2001. (Form N300 - 2 pages)

4/30/2001 $1.00 Technical Note: Finishing Exposure 1 OSB Sheathing (Purchase Paper Copy) Free Technical Note: Finishing Exposure 1 OSB Sheathing (PDF Download)
88 K

Technical Note: Smoothness of Wood-Based Panel Surfaces

Factors affecting panel smoothness and product type suggestions. Issued September 1992 (Form S425 - 4 pages)

9/30/1992 $1.00 Technical Note: Smoothness of Wood-Based Panel Surfaces (Purchase Paper Copy) Free Technical Note: Smoothness of Wood-Based Panel Surfaces (PDF Download)
61 K

Technical Note: Narrow Wall Bracing Without Hold Downs for Use in a Fully Sheathed House

THIS PUBLICATION HAS BEEN DISCONTINUED. Please refer to Form J740 for more information on this topic. (Form E425)

Technical Note: Water Vapor Permeance of Wood Structural Panels and Wood Wall Construction

Because moisture vapor can move through exterior wall systems, care must be taken with respect to the design of the wall to prevent excessive condensation and minimize moisture-related problems. This document addresses the water vapor permeance of structural wood panels, vapor retarders and their role in wall-system design. Issued February 2009. Available only as a downloadable PDF. (Form J450 - 6 pages)

2/11/2009 Free Technical Note: Water Vapor Permeance of Wood Structural Panels and Wood Wall Construction (PDF Download)
248 K

Technical Note: Load-Span Tables for APA Structural-Use Panels

Because it is sometimes necessary to have engineering design information for structural panel products when used in construction applications, APA provides design capacities for the various span ratings and section properties for various panel thicknesses (see Panel Design Specification, Form D510). This Technical Note contains uniform load tables calculated using these design capacities. Available only as a downloadable PDF. Updated February 2011. (Form Q225 - 14 pages)

2/11/2011 Free Technical Note: Load-Span Tables for APA Structural-Use Panels (PDF Download)
347 K

Technical Note: Portal Frame Bracing Without Hold-Down Devices

Details for APA-developed portal frame wall bracing to help provide segments as narrow as 16 inches that can be counted toward the overall bracing percentage required by the International Residential Code (IRC). For use in continuously sheathed walls. Issued July 2008. (Form J740 - 6 pages)

7/13/2008 $1.00 Technical Note: Portal Frame Bracing Without Hold-Down Devices (Purchase Paper Copy) Free Technical Note: Portal Frame Bracing Without Hold-Down Devices (PDF Download)
322 K

Technical Note: Wood Structural Panel Sheathing or Siding Used to Resist Combined Shear & Uplift

THIS PUBLICATION HAS BEEN DISCONTINUED. Please refer to Form SR-101 for more information on this topic. (Form H335 - 8 pages)

Technical Note: Using Wood Structural Panels for Combined Uplift and Shear Resistance

Explains the use of wood structural panels for combined shear and uplift, which can eliminate many of the hurricane ties that are required between the floors of the structure that is already sheathed with wood structural panels due to lateral wind forces. Available only as a downloadable PDF. Updated February 2008. (Form E510 - 6 pages)

2/21/2008 Free Technical Note: Using Wood Structural Panels for Combined Uplift and Shear Resistance (PDF Download)
301 K

Technical Note: Design Capacities of APA Performance-Rated Panels

THIS PUBLICATION HAS BEEN DISCONTINUED. Please refer to Form D510 for more information on this topic. (N375)

Technical Topics: Wind Resistance of Wood Structural Panel Sheathed Walls

Comprehensive information for wind resistance of light-framed walls sheathed with plywood or OSB using the methodology of the 2012 IBC, Table 2304.6.1 and the 2012 IRC, Table R602.3(3). Revised June 6, 2012. (Form TT-110 - 8 pages)

6/6/2012 Free Technical Topics: Wind Resistance of Wood Structural Panel Sheathed Walls (PDF Download)
990 K

Technical Topics: Wood Structural Panels Used as Nailable Sheathing

Discussion of Wood Structural Panel's ability to withstand earthquake, wind, wind suction and pressure loads as well as permitting the anchorage of light-weight siding materials. Available as downloadable PDF only. Issued October 26, 2010. (Form TT-109 - 6 pages)

10/26/2010 Free Technical Topics: Wood Structural Panels Used as Nailable Sheathing (PDF Download)
413 K

Technical Topics: Wood Moisture Content and the Importance of Drying in Wood Building Systems

Guidance on how to avoid potential moisture problems that could lead to costly and hazardous deterioration as well as health risks when using wood structural products with impermeable materials. Revised March 2011. (Form TT-111 - 3 pages)

3/7/2011 Free Technical Topics: Wood Moisture Content and the Importance of Drying in Wood Building Systems (PDF Download)
379 K

Technical Topics: Burn-Through Resistance of OSB Panels

Fire test results comparing the burn-through resistance of OSB and plywood. Available only as a downloadable pdf file. Revised November 3, 2011. (Form TT-025 - 2 pages)

11/3/2011 Free Technical Topics: Burn-Through Resistance of OSB Panels (PDF Download)
440 K

Technical Topics: Flame Spread of APA Performance-Rated Wood Structural Panels

Report on surface burning characteristics (i.e. flame spread and smoke development) of wood structural panels tested in accordance with ASTM E84. Available only as a downloadable pdf file. Revised November 4, 2011. (Form TT-010 - 1 page)

11/4/2011 Free Technical Topics: Flame Spread of APA Performance-Rated Wood Structural Panels (PDF Download)
426 K

Technical Topic: Thermal Resistance of Wood Structural Panels

TT-016 has been superseded by APA ICC ES Report ESR-2586. (TT-016 - 1 page)

Data File: Selection, Installation and Preparation of Plywood Underlayment

This APA Data File provides recommendations for the installation and preparation of underlayment under finish flooring in residential and light commercial applications. Recommendations are also provided for the selection of APA plywood Underlayment, a plywood panel grade in accordance with Voluntary Product Standard PS 1, Structural Plywood. This publication is only available as a downloadable PDF. Revised June 2012. (Form L335 - 8 pages)

6/21/2012 Free Data File: Selection, Installation and Preparation of Plywood Underlayment (PDF Download)
417 K

APA Full-Scale House Test Project: Progress Report 1

Full Name: APA Full-Scale House Test Project: Progress Report 1, Overview of Test Project. Reports on APA’s three-dimensional, full-scale house test project. This extensive study will investigate the response of braced walls and evaluate how various structural components work as a whole. Available as a PDF only. Issued November 2006. (Form 3D-001 - 4 pages)

11/20/2006 Free APA Full-Scale House Test Project: Progress Report 1 (PDF Download)
454 K

APA Full-Scale House Test Project: Progress Report 2

Full Name: APA Full-Scale House Test Project: Progress Report 2, Effect of Return Corners and Hold Downs. Reports on APA’s three-dimensional, full-scale house test project. Available as a PDF only. Issued January 2007. (Form 3D-002 - 4 pages)

1/5/2007 Free APA Full-Scale House Test Project: Progress Report 2 (PDF Download)
159 K

APA Full-Scale House Test Project: Progress Report 4

Full Name: APA Full-Scale House Test Project: Progress Report 4, 3-D Testing with 6:1 Aspect Ratio Portal Frame Wall Bracing. Reports on APA’s three-dimensional, full-scale house test project. Available as a PDF only. Issued January 2007. (Form 3D-004 - 7 pages)

1/8/2007 Free APA Full-Scale House Test Project: Progress Report 4 (PDF Download)
315 K

APA Full-Scale House Test Project: Progress Report 5

Full Name: APA Full-Scale House Test Project: Progress Report 5, Effect of Bracing Configurations on Isolated Bracing (Method 3). Reports on APA’s three-dimensional, full-scale house test project. Available as a PDF only. Issued January 2007. (Form 3D-005 - 5 pages)

1/8/2007 Free APA Full-Scale House Test Project: Progress Report 5 (PDF Download)
195 K

APA Full-Scale House Test Project: Progress Report 3

Full Name: APA Full-Scale House Test Project: Progress Report 3, 3D Testing with 4:1 Aspect Ratio Wall Bracing. Reports on APA's three-dimensional, full-scale house test project. Available as a PDF only. Issued January 2007. (Form 3D-003 - 6 pages)

1/8/2007 Free APA Full-Scale House Test Project: Progress Report 3 (PDF Download)
332 K

APA Full-Scale House Test Project: Progress Report 7

Full Name: APA Full-Scale House Test Project: Progress Report 7, Wall Bracing with a 4:1 Aspect Ratio Using Sheathing Cut Around Openings. Reports on APA’s three-dimensional, full-scale house test project. Available as a PDF only.Issued January 2007. (Form 3D-007 - 5 pages)

1/23/2007 Free APA Full-Scale House Test Project: Progress Report 7 (PDF Download)
241 K

Technical Note: Formaldehyde and Engineered Wood Products

Addresses concerns related to structural wood panels and explains why plywood and OSB manufactured to Voluntary Product Standard PS 1-07, Structural Plywood and Voluntary Product Standard PS 2, Performance Standard for Wood-Based Structural-Use Panels, have such low emission levels that they are exempt from the leading formaldehyde emission standards and regulations. Revised June 2013. (Form J330 - 7 pages)

6/26/2013 Free Technical Note: Formaldehyde and Engineered Wood Products (PDF Download)
1.0 MB

Build Profit with Wood Walls

Introductory piece to APA's series of wall bracing materials highlighting building design, construction and efficiency advantages of fully sheathing with wood structural panels. This brochure provides tips and resources on how to meet all of these demands and build profitability into your residential construction project. Issued December 2008. (Form J435 - 6 pages)

12/18/2008 $1.00 Build Profit with Wood Walls (Purchase Paper Copy) Free Build Profit with Wood Walls (PDF Download)
2.4 MB

Build Energy Efficient Walls

Provides five basic steps to construct energy-saving wood wall systems that meet code, are durable to the forces of nature, and save homeowners money. Issued December 2008. (Form J440 - 16 pages)

12/30/2008 $2.00 Build Energy Efficient Walls (Purchase Paper Copy) Free Build Energy Efficient Walls (PDF Download)
1.6 MB

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