A Resource Guide to Lumber Performance

Douglas Fir beam construction
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Heavy Timber & Wood Performance Resources

Welcome to the US Timber - Wood Resource Guide, our comprehensive reference tool for all things related to wood and its use in construction. In this guide, we aim to provide a wealth of information on various aspects of wood performance, from traditional construction to the design and construction of heavy timber structures, including post-and-beam construction.

Heavy timber framing is a method of construction that is gaining popularity due to its aesthetic appeal, durability, and sustainability. We will explore the benefits of using heavy timber and the design considerations that must be considered when constructing these types of structures.

Additionally, you will find resources for the use of wood in meeting energy requirements for residential buildings. Wood frame construction is an excellent option for achieving energy efficiency, and we work to provide various techniques and approaches that can be employed to meet these requirements. You'll also find fire resistance of wood members and assemblies, providing detailed information on how to calculate and demonstrate the fire resistance of various wood components using the Component Additive Method (CAM) and other tools.

Inscribed vs. Separate Structures in the WFCM

A design aid to help in understanding and distinguishing between inscribed and separate structures, particularly with regard to wind loads.

Published by the AWC and AF&PA. (6 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Calculating the Fire Resistance of Wood Members and Assemblies

This resource contains info on the development of design procedures for exposed wood members, comparison of calculation methods and experiments, protection of structural members and connections, design procedures for exposed and protected wood members, and application guidelines and design examples.

Published by the AWC. (137 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance

A discussion of design options for wood-frame wall and floor assemblies that are required by the building codes to achieve a minimum fire resistance rating.

Published by the AWC. (7 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies

A document to aid in the design of various wood-frame walls and wood-frame floor/ceiling assemblies, that are required by code to be fire-resistance-rated.

Published by the AWC. (28 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Flame Spread Performance of Wood Products Used for Interior Finish

A brief description of building code flame-spread regulations on products used in interior finish, with performance data on a range of wood products.

Published by the AWC. (7 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Meeting Residential Energy Requirements with Wood Frame Construction

A Design for Code Acceptance (DCA) providing ways to economically meet
the residential requirement of the 2012 International Energy Conservation Code (IECC) with regard to energy performance of wood-based construction.

Published by the AWC. (15 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Post Frame Buildings

This document provides guidance to post-frame building designers to meet the requirements of the International Building Code (IBC) and to assure that a properly-designed post-frame building is in fact code-compliant.

Published by the AWC. (15 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Design of Wood Frame Structures for Permanence

Including principles of good design, the role of building codes, moisture and termite control, identifying durable materials, and more.

Published by the AWC and AF&PA. (23 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Details for Conventional Wood Frame Construction

General and specific information, including grade marking, lumber seasoning, types of frame construction, and more.

Published by the AWC and AF&PA. (55 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Fire Design Specification for Wood Construction

Including general requirements for fire design, and details on ignition and flammability, fire resistance, with a variety of topic-specific tables.

Published by the AWC and AF&PA. (73 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Plank-and-Beam Framing for Residential Buildings

 A detailed exploration of plank-and-beam construction, with comparisons and integration with conventional building methods, and instructions on various design configurations.

Published by the AWC and AF&PA. (73 pages)

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Preventing and Controlling Mold

Preventing and controlling mold, notes on green wood, and protecting lumber from moisture.

Published by Western Wood Products Association (WWPA) - 2 pages

Note: a signup/account (free and fast process) is required to download and view WWPA documents.

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Cleaning Mold on Wood

A guide to deciding when and how to clean mold on wood.

Published by Western Wood Products Association (WWPA) - 2 pages

Note: a signup/account (free and fast process) is required to download and view WWPA documents.

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers

Mold, Housing and Wood

A guide to concerns about mold in homes, including which types of molds are found on wood, how molds are identified, where they are likely to be found in buildings, as well as health concerns around infections, allergies, and toxicity.

Published by Western Wood Products Association (WWPA) - 2 pages

Note: a signup/account (free and fast process) is required to download and view WWPA documents.

Resources Quick Links

Construction

General Construction Techniques

Lumber Data & Specifications

Connection Guides

Engineering

Properties

Performance

Douglas Fir

Western Red Cedar

Eastern White Pine

Specialty Timbers