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.

2125 Franklin Building in Eugene, Oregon

2125 Franklin Student Housing 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.

4 Best Practices for Glulam Installation Technical Guides - Q705 This publication provides simple steps to proper installation that ensures glulam beams perform as designed.

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.

All-wood Podiums in Mid-Rise Construction at Oceano Luxury Apartment Complex in Woodland Hills, California

CREDIT REQUIRED FOR IMAGES:
Credit: Photo Courtesy of West Coast Aerial Photography

All-Wood Podiums in Mid-Rise Construction 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.

ANSI 117-2025: Standard Specification for Structural Glued Laminated Timber of Softwood Species Standards - ANSI 117-2025 This ANSI Standard provides information for the design of structural glued laminated timber (glulam), reference values for glulam design and specific layup requirements.

ANSI 405-2023: Standard for Adhesives for Use in Structural Glued Laminated Timber Standards - ANSI 405-2023 This ANSI standard provides minimum requirements to evaluate adhesives for use in structural glued laminated timber. This document is a revision of ANSI 405-2018.

CREDIT REQUIRED FOR IMAGES:
Credit: © Structurlam

ANSI A190.1-2022 Product Standard for Structural Glued Laminated Timber Standards - ANSI A190.1-2022 This ANSI Standard contains requirements for the manufacture and quality control of structural glued laminated timber.

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 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

Apparent and True (shear-free) E Technical Topic - TT-104 This publication explains the difference between apparent modulus of elasticity (MOE) and shear-free MOE in glulam beams

Appleton Mills Building in Lowell, Massachusetts

Appleton Mills Case Studies - R145 This case study discusses how glulam beams, planks, girders and columns were used to structurally and aesthetically restore the historic Appleton Mills complex in Lowell, MA.

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.

Audrain Museum Building in Newport, Rhode Island

*MUST CREDIT*
Photo Courtesy of Ben Jacobson

Audrain Museum 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.

Beam at End Wall Bearing, Nailed Typical Details - DT-GB-1 This detail shows glulam beam bearing at an end wall. The beam is supported by trimmer studs and secured to the king stud with 16d nails.

Beam at End Wall with Floor Joist Flush with Beam Typical Details - DT-GB-2 This detail shows a glulam beam connection to an end wall with flush floor joists or I-joists connected to the beam.

Beam at End Wall with Floor Joist Over Beam Typical Details - DT-GB-3 This detail shows a glulam beam connection to an end wall with I-joists bearing on the beam.

Beams Butting Over Wood Support Typical Details - DT-GB-6 This detail shows two glulam beams butting over a wood support, with the beams connected to the support using a steel post cap and through-bolts.

Bearing at End Wall, Steel Post Cap Typical Details - DT-GB-8 This detail shows connection of glulam beam bearing on solid-sawn post or glulam column using steel post cap at end wall condition.

Bearing at End Wall, Steel Tie Plate Typical Details - DT-GB-9 This detail shows a steel tie plate connection for a glulam beam bearing on a wood support at an end condition.

Beauty and the Budget Case Studies - V130 This publication describes how LEVER Architecture used engineered wood to balance design, budget and sustainability goals in a Portland, OR, commercial building project.

Washington State University Visitor Center in Pullman, Washington

CREDIT REQUIRED FOR IMAGES:
Credit: Photograph by Benjamin Benschneider

Brelsford WSU Visitor Center Case Studies - R130 This case study discusses the Brelsford WSU visitor center’s use of several engineered wood products, including CLT and glulam.

Builder Tips: APA Portal Frame Bracing Method Framing Tips Builder Tip - F435 This publication highlights essential details for using the APA narrow wall bracing method around garage openings.

Builder Tips: Keep Glulam Looking Its Best with Proper Storage and Handling Builder Tip - F455 This publication describes best practices for storage and installation of glued laminated timber (glulam).

Builder Tips: Proper Storage and Handling of Glulam Beams Builder Tip - R540 This publication provides recommendations for storage and handling of glulam beams.

Calculating Fire Resistance of Glulam Beams and Columns Technical Note - Y245 This publication describes the natural fire resistance of glulam beams and columns and provides fire endurance calculation methods

Continuous Beam Over Intermediate Steel Column Typical Details - DT-GB-10 This detail shows two options for connecting a continuous glulam floor beam to an intermediate steel column using either a steel post cap or steel cap plate.

Continuous Floor Beam Over Wood Support Typical Details - DT-GB-11 This detail shows two connection options for a continuous glulam floor beam bearing on a wood support.

ADOBE STANDARD LICENSCING | Standard licenses
Most Adobe Stock photos, vectors, and illustrations come with a Standard license. With a Standard license, you may:
• Reproduce up to 500,000 copies of the asset in all media, including product packaging, printed marketing materials, digital documents, or software.
• Include the asset in email marketing, mobile advertising, or a broadcast or digital program if the expected number of viewers is fewer than 500,000.
• Post the asset to a website or social media site with no limitation on views.
• Include the asset in some types of products, such as inside a textbook, as long as the primary value of the product is not the asset itself, and the product is not reproduced more than 500,000 times.
• Share the unmodified asset with your employees and contractors who have contractually agreed to abide by the license terms.
• Transfer the license to your client or employer.
(With a Standard license, you may not:
• Distribute the stand-alone file.
• Create merchandise, templates, or other products for resale or distribution where the primary value of the product is associated with the asset itself. For example, you can't use the asset to create a poster, t-shirt, or coffee mug that someone would buy specifically because of the asset printed on it.
• Transfer the license to more than one employer or client, unless separately licensed for each.)

Copyright: © Adobe Stock

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

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.

Design of Structural Glued Laminated Timber Columns Data File - Y240 This publication provides information on member sizes and layup, design stresses, column design equations and design tables and examples.

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

Effect of Large Diameter Horizontal Holes on the Bending and Shear Properties of Structural Glued Laminated Timber (Glulam) Technical Note - V700 This publication is a supplement to APA S560, providing an analytical tool in situations when horizontal holes exceeding the prescriptive guidance in APA S560 are necessary

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: Glulam Selection and Specification Excerpt - E30X-GL This publication is an excerpt from the APA Engineered Wood Construction Guide, providing a description and specification recommendations for glued laminated timber (glulam)

Engineered Wood Construction Guide: Roof Construction Excerpt - E30X-RC This publication is an excerpt from the APA Engineered Wood Construction Guide, providing a description and application recommendations for engineered wood roof materials

Birney Elementary School in Tacoma, Washington

*MUST CREDIT*
Photo Courtesy of Tacoma Public Schools

Engineered Wood Gets an Easy A Case Studies - W170 This case study discusses two Washington school districts that creatively leveraged the benefits of exposed wood products in newly constructed schools.

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.

Sprouts Supermarket in Norwalk, California

Engineered Wood Sprouts Solutions for Supermarket Chain Case Studies - Z110 This case study discusses how a Sprouts grocery store used engineered wood instead of steel for the roof system to solve supply chain challenges and reduce their carbon footprint.

Luna Vista Community Multi-Family Building in Mountain View, California

Engineering Solutions for a More Inclusive Community Case Studies - X175 This publication discusses how a California nonprofit incorporated engineered wood into an affordable housing complex to keep costs low and create an inclusive community

ESR Joint Evaluation Report - ESR-1940 Multiple Companies Canfor, WFP Engineered Products, LLC

Glulam:
Glued-Laminated Timber Combinations and the GAP Computer Program

ESR Joint Evaluation Report - ESR-4874 Nordic Structures Glulam:
Nordic Lam

ESR Joint Evaluation Report - ESR-5815 Vaagen Timbers, LLC Glulam:
Vaagen Structural Glued Laminated Timber

fertilizer bins being constructed using Glulam Beams

Evaluation of Check Size in Glued Laminated Timber Beams Technical Note - R475 This publication discusses checking in glulam beams and includes a flowchart and equations for determining allowable check size

Exemption of Special Inspection on Glulam Based on the 2019 California Building Code Technical Topic - TT-108 This publication clarifies the intent of the California Building Code exemption for special inspection on glulam outlined in Section 1705.5.4

APA Case Study: HarborCenter Hockey Complex Building in Buffalo, New York (S110A)

Field Notching and Drilling of Glued Laminated Timber Beams Technical Note - S560 This publication provides guidance for notching and drilling on glulam when the end notching and drilling of horizontal though-thickness holes cannot be avoided

Finishing Glued Laminated Timbers Technical Topic - TT-033 This publication discusses recommendations and exceptions for finishing glulam manufactured entirely from solid-sawn lumber.

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

Fire-Retardant-Treated Structural Glued Laminated Timber Technical Topic - TT-127 This publication provides a summary of results of an APA/USDA Forest Product Laboratory pilot test program examining structural properties of Fire-Retardant Treated glulam.

First Tech Federal Credit Union in Hillsboro, Oregon

CREDIT REQUIRED FOR IMAGES:
Credit: Photos Courtesy of Mike Brewington for Swinerton Builders

First Tech Federal Credit Union Case Studies - U115 This case study discusses how CLT panels and glulam framing delivered cost savings, a faster schedule and sustainability benefits for First Tech Federal Credit Union.

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.

Garage Door Header to End Wall, King Stud Nailed to Beam Typical Details - DT-GH-1 This detail shows a connection of a garage door header at and end wall where a glulam beam is connected to a king stud with nails.

Garage Door Header to End Wall, Steel Tie Plate Typical Details - DT-GH-2 This detail shows a connection of a garage door header and an end wall using a steel plate fastened to a solid wood post, glulam column or studs.

Glued Laminated Beam Design Tables Technical Guides - S475 This publication provides recommended design load tables for glulam beam roof and floor applications

Glulam Appearance Classifications for Construction Applications Technical Note - Y110 This publication clarifies the distinction between appearance considerations and structural properties of glulam timbers and appearance classifications of glulam members.

Glulam Beam Camber Technical Note - S550 This publication discusses how camber reduces the adverse effects of beam deflection

**Please note this image may have been edited or manipulated to enhance visual quality**

Glulam Connection Details Construction Guide - T300 This publication shows correct connections and common connection errors involving glued laminated (glulam) timbers

Construction on an Apartment using FTAO in Rialto, California

Glulam Floor Beams Technical Guides - C415 This publication contains span tables for glulam floor beams in residential construction, tables for substituting glulam for steel beams and design details.

Glulam Garage Door Headers Offer Design Options Technical Guides - C410 This publication provides connection details and installation recommendations for glulam in residential garage door framing.

Glulam in Residential Building Construction Guide Technical Guides - X450 Describes the selection, specification, design considerations and allowable load tables for APA-trademarked glulam used in residential headers, floor beams and roof beams.

Glulam or Multi-Structural Composite Lumber Beams Typical Details - DT-IJ-4 This detail shows I-Joists with top mount hangers supported by a multi-ply structural composite lumber (SCL) beam. This detail is similar for a glulam beam with face mount hangers.

Glulam Product Guide Product Guide - X440 This product guide provides an overview of APA trademarked glulam and discusses design considerations, applications and specification

Case Study: Going for Bold: Window into Affordability - Las Ventanas Multi-Family Development in Long Beach, California (X170)

This modern, affordable housing complex in Long Beach, CA, Las Ventanas, was developed in answer to the "Everyone Home Long Beach" initiative encouraging innovative, low-income housing solutions for the community. Issued April 2021.
CREDIT REQUIRED FOR IMAGES:
Credit: FOR USE OF WHA DESIGN RENDERINGS

(See file for further details)

Going for Bold: Window Into Affordability Case Studies - X170 This case study discusses how the Las Ventanas affordable housing project used glulam, LVL, OSB and FTAO design principles to cut costs and streamline construction.

Green Verification Report - GR-L251 Rosboro Glulam:
Rosboro Structural Glued Laminated Timber

Green Verification Report - GR-L294 Nordic Structures Glulam:
Nordic Lam™

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

HarborCenter Hockey Complex Building in Buffalo, New York

CREDIT REQUIRED FOR IMAGES:
Credit: Photograph by Bill Wippert

HarborCenter Case Studies - S110 This case study discusses the use of hybrid trusses combining glulam arches, glulam purlins and steel bottom chords at the Buffalo Sabres’ practice ice rinks.

Heavy Timber Construction Typical Details - DT-EWG-21 This detail shows a heavy timber roof construction assembly using APA Rated Sturd-I-Floor T&G panels over structural glulam or solid timber beams with built-up roofing.

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.

I-Joists Bearing on Floor Beam Typical Details - DT-GB-12 This detail shows I-joists bearing on a glulam floor beam with face nail connections and blocking not shown for clarity.

Technical Document Library

Find Documents By

Results for Glulam

By Title A-Z