A Resource Guide To Working With, Designing, Engineering, Building, and Constructing with Timber Wood Products
Heavy Timber & Wood Product Resources
Welcome to our Wood Products and Heavy Timber informational resources. Here, US Timber will provide comprehensive guides to the most common construction methods using wood, and specifically constructing with heavy timbers: Timber Frame, Post-and-Beam, and Mortise-and-Tenon Construction methods.
Structural frames, elements and accents with Heavy Timber provide excellent fire resistance as recognized by building codes and fire insurance rating schedules. Heavy Timber construction is commonly used for homes, entryways, carports, pavilions, and pergolas, and is also used for commercial work with schools, churches, event pavilions, event barns, and auditoriums.
The informational resources below will help provide you with technical specifications and guidelines for Heavy Timber construction, including information on structural design, fire resistance, and recommended construction details. Additionally, you will find information on Timber Frame construction, including its history, benefits, and how to properly design and construct a building using this method.
We hope that this guide be a valuable resource for architects, builders, contractors, and anyone interested in learning more about the benefits and techniques of wood construction methods. When constructing with Heavy Timbers, remember US Timber is your source for consistent quality woods and timbers with available inventory ready to deliver to your next project.
General Construction Techniques
Heavy Timber Construction
The American Forest & Paper Association (AF&PA) and the American Wood Council (AWC) jointly publish a document called Heavy Timber Construction. This document outlines the minimum standards and requirements for this type of construction method including detailed illustrations of proper building techniques and details.
Published by the AWC and AF&PA. (24 pages)
The American Wood Council (AWC) is a non-profit organization that provides information and resources for the design and construction of wood-framed buildings. It was formed with the mission to increase the use of wood in construction through the development of design tools and building codes, standards, and guidelines. They represent the North American softwood lumber industry and provide technical resources, including design software, engineering guides, and standards for architects, engineers, builders, and other construction professionals.
The AWC is a membership organization that is made up of companies and organizations involved in the production and distribution of wood products, as well as companies that provide services to the wood products industry, such as engineering firms and lumberyards. They were established in the 1940s, as a way to provide technical support to the wood products industry and promote the use of wood as a construction material. The organization also advocates for the use of wood in construction at the national and international levels, and works with code-making and standard-setting bodies to ensure that building codes and standards are favorable to the use of wood.
The American Forest & Paper Association (AF&PA) is a trade association that represents the forest products industry in the United States, which includes the pulp, paper, packaging, and wood products sectors. They were established in the early 20th century and have been representing the industry for more than a century. The organization’s mission is to promote the sustainable growth and use of wood and paper products, and to advocate for policies that support the forest products industry.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Tongue & Groove Roof Decking
The American Forest & Paper Association (AF&PA) and the American Wood Council (AWC) jointly publish a document called Tongue & Groove Roof Decking. This document outlines the minimum standards and requirements for this type of roofing construction, including standard materials, specifications, building techniques and details.
Published by the AWC and AF&PA. (17 pages)
The American Wood Council (AWC) is a non-profit organization that provides information and resources for the design and construction of wood-framed buildings. It was formed with the mission to increase the use of wood in construction through the development of design tools and building codes, standards, and guidelines. They represent the North American softwood lumber industry and provide technical resources, including design software, engineering guides, and standards for architects, engineers, builders, and other construction professionals.
The AWC is a membership organization that is made up of companies and organizations involved in the production and distribution of wood products, as well as companies that provide services to the wood products industry, such as engineering firms and lumberyards. They were established in the 1940s, as a way to provide technical support to the wood products industry and promote the use of wood as a construction material. The organization also advocates for the use of wood in construction at the national and international levels, and works with code-making and standard-setting bodies to ensure that building codes and standards are favorable to the use of wood.
The American Forest & Paper Association (AF&PA) is a trade association that represents the forest products industry in the United States, which includes the pulp, paper, packaging, and wood products sectors. They were established in the early 20th century and have been representing the industry for more than a century. The organization’s mission is to promote the sustainable growth and use of wood and paper products, and to advocate for policies that support the forest products industry.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Framing Basics
Intended to help builders avoid common framing errors that not only cause problems with building inspectors, but may create other difficulties within the structure. These recommendations have been developed through years of work by WWPA with framers, contractors and building code officials.
Published by Western Wood Products Association (WWPA) - 6 pages
Note: a signup/account (free and fast process) is required to download and view WWPA documents.
Supported by Western lumber manufacturers, WWPA delivers lumber grading, quality control, technical, business information and product support services to sawmills as well as those who use Western softwood lumber products throughout the world.
Western Wood Products Association represents lumber manufacturers in the 12 Western states and Alaska. The largest lumber association in the region, WWPA provides service covering over 8 billion board feet of annual Western lumber production.
Services
WWPA provides services to Western mills in three areas: Quality Assurance, Technical Services and Market Services. Member mills have access and can guide Association activities in all three service areas. WWPA also provides nonmember quality assurance services, including grade inspection, heat-treating, remanufactured wood, and glued products.
Membership
WWPA mills produce more than 60% of the lumber manufactured in the West each year. The Member roster features the top independent lumber companies in North America, with mills that lead the industry in manufacturing technology, operating efficiencies and sales strategies.
Staffing
WWPA’s headquarters are located in Lake Oswego, OR. The Association’s field staff are recognized throughout the sawmilling industry, with each averaging more than two decades of lumber quality control experience. WWPA technical and product support professionals are the acknowledged experts in the use of Western lumber in construction. The statistical and product information created by the Association’s staff are sought by thousands of people each year.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Prescriptive Residential Wood Deck Guide
This guide to building wooden decks includes requirements and limitations, framing plans, connection techniques, and detailed instructions on footings, rails, stairs and more.
Published by American Wood Council (AWC) - 44 pages
The American Wood Council (AWC) is a non-profit organization that provides information and resources for the design and construction of wood-framed buildings. It was formed with the mission to increase the use of wood in construction through the development of design tools and building codes, standards, and guidelines. They represent the North American softwood lumber industry and provide technical resources, including design software, engineering guides, and standards for architects, engineers, builders, and other construction professionals.
The AWC is a membership organization that is made up of companies and organizations involved in the production and distribution of wood products, as well as companies that provide services to the wood products industry, such as engineering firms and lumberyards. They were established in the 1940s, as a way to provide technical support to the wood products industry and promote the use of wood as a construction material. The organization also advocates for the use of wood in construction at the national and international levels, and works with code-making and standard-setting bodies to ensure that building codes and standards are favorable to the use of wood.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Working With Wood Products
Lumber Data & Specifications
Notching & Boring Guide
Description and diagrams of code-approved notches and holes in load-bearing members to accommodate modifications for wiring, plumbing.
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.
Supported by Western lumber manufacturers, WWPA delivers lumber grading, quality control, technical, business information and product support services to sawmills as well as those who use Western softwood lumber products throughout the world.
Western Wood Products Association represents lumber manufacturers in the 12 Western states and Alaska. The largest lumber association in the region, WWPA provides service covering over 8 billion board feet of annual Western lumber production.
Services
WWPA provides services to Western mills in three areas: Quality Assurance, Technical Services and Market Services. Member mills have access and can guide Association activities in all three service areas. WWPA also provides nonmember quality assurance services, including grade inspection, heat-treating, remanufactured wood, and glued products.
Membership
WWPA mills produce more than 60% of the lumber manufactured in the West each year. The Member roster features the top independent lumber companies in North America, with mills that lead the industry in manufacturing technology, operating efficiencies and sales strategies.
Staffing
WWPA’s headquarters are located in Lake Oswego, OR. The Association’s field staff are recognized throughout the sawmilling industry, with each averaging more than two decades of lumber quality control experience. WWPA technical and product support professionals are the acknowledged experts in the use of Western lumber in construction. The statistical and product information created by the Association’s staff are sought by thousands of people each year.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Unseasoned (GRN) Framing Lumber
A guide to moisture content and seasoning in unseasoned—or green—dimensional lumber and heavy timber.
Published by Western Wood Products Association (WWPA) - 4 pages
Note: a signup/account (free and fast process) is required to download and view WWPA documents.
Supported by Western lumber manufacturers, WWPA delivers lumber grading, quality control, technical, business information and product support services to sawmills as well as those who use Western softwood lumber products throughout the world.
Western Wood Products Association represents lumber manufacturers in the 12 Western states and Alaska. The largest lumber association in the region, WWPA provides service covering over 8 billion board feet of annual Western lumber production.
Services
WWPA provides services to Western mills in three areas: Quality Assurance, Technical Services and Market Services. Member mills have access and can guide Association activities in all three service areas. WWPA also provides nonmember quality assurance services, including grade inspection, heat-treating, remanufactured wood, and glued products.
Membership
WWPA mills produce more than 60% of the lumber manufactured in the West each year. The Member roster features the top independent lumber companies in North America, with mills that lead the industry in manufacturing technology, operating efficiencies and sales strategies.
Staffing
WWPA’s headquarters are located in Lake Oswego, OR. The Association’s field staff are recognized throughout the sawmilling industry, with each averaging more than two decades of lumber quality control experience. WWPA technical and product support professionals are the acknowledged experts in the use of Western lumber in construction. The statistical and product information created by the Association’s staff are sought by thousands of people each year.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Board Footage Table
Conversions from lineal feet to board feet in standard sizes of western lumber.
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.
Supported by Western lumber manufacturers, WWPA delivers lumber grading, quality control, technical, business information and product support services to sawmills as well as those who use Western softwood lumber products throughout the world.
Western Wood Products Association represents lumber manufacturers in the 12 Western states and Alaska. The largest lumber association in the region, WWPA provides service covering over 8 billion board feet of annual Western lumber production.
Services
WWPA provides services to Western mills in three areas: Quality Assurance, Technical Services and Market Services. Member mills have access and can guide Association activities in all three service areas. WWPA also provides nonmember quality assurance services, including grade inspection, heat-treating, remanufactured wood, and glued products.
Membership
WWPA mills produce more than 60% of the lumber manufactured in the West each year. The Member roster features the top independent lumber companies in North America, with mills that lead the industry in manufacturing technology, operating efficiencies and sales strategies.
Staffing
WWPA’s headquarters are located in Lake Oswego, OR. The Association’s field staff are recognized throughout the sawmilling industry, with each averaging more than two decades of lumber quality control experience. WWPA technical and product support professionals are the acknowledged experts in the use of Western lumber in construction. The statistical and product information created by the Association’s staff are sought by thousands of people each year.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Connection Guides
Lag Screw Connections
Calculations and design considerations when using lag screw connections.
Published by the AWC and AF&PA. (14 pages)
The American Wood Council (AWC) is a non-profit organization that provides information and resources for the design and construction of wood-framed buildings. It was formed with the mission to increase the use of wood in construction through the development of design tools and building codes, standards, and guidelines. They represent the North American softwood lumber industry and provide technical resources, including design software, engineering guides, and standards for architects, engineers, builders, and other construction professionals.
The AWC is a membership organization that is made up of companies and organizations involved in the production and distribution of wood products, as well as companies that provide services to the wood products industry, such as engineering firms and lumberyards. They were established in the 1940s, as a way to provide technical support to the wood products industry and promote the use of wood as a construction material. The organization also advocates for the use of wood in construction at the national and international levels, and works with code-making and standard-setting bodies to ensure that building codes and standards are favorable to the use of wood.
The American Forest & Paper Association (AF&PA) is a trade association that represents the forest products industry in the United States, which includes the pulp, paper, packaging, and wood products sectors. They were established in the early 20th century and have been representing the industry for more than a century. The organization’s mission is to promote the sustainable growth and use of wood and paper products, and to advocate for policies that support the forest products industry.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Toenail Connections
Design values and reference tables for using toenail connections.
Published by the AWC and AF&PA. (4 pages)
The American Wood Council (AWC) is a non-profit organization that provides information and resources for the design and construction of wood-framed buildings. It was formed with the mission to increase the use of wood in construction through the development of design tools and building codes, standards, and guidelines. They represent the North American softwood lumber industry and provide technical resources, including design software, engineering guides, and standards for architects, engineers, builders, and other construction professionals.
The AWC is a membership organization that is made up of companies and organizations involved in the production and distribution of wood products, as well as companies that provide services to the wood products industry, such as engineering firms and lumberyards. They were established in the 1940s, as a way to provide technical support to the wood products industry and promote the use of wood as a construction material. The organization also advocates for the use of wood in construction at the national and international levels, and works with code-making and standard-setting bodies to ensure that building codes and standards are favorable to the use of wood.
The American Forest & Paper Association (AF&PA) is a trade association that represents the forest products industry in the United States, which includes the pulp, paper, packaging, and wood products sectors. They were established in the early 20th century and have been representing the industry for more than a century. The organization’s mission is to promote the sustainable growth and use of wood and paper products, and to advocate for policies that support the forest products industry.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)
Specialty Timbers
Post Frame Ring Shank Nails
Reference tables with design values for using post frame ring shank nail connections.
Published by the AWC and AF&PA. (6 pages)
The American Wood Council (AWC) is a non-profit organization that provides information and resources for the design and construction of wood-framed buildings. It was formed with the mission to increase the use of wood in construction through the development of design tools and building codes, standards, and guidelines. They represent the North American softwood lumber industry and provide technical resources, including design software, engineering guides, and standards for architects, engineers, builders, and other construction professionals.
The AWC is a membership organization that is made up of companies and organizations involved in the production and distribution of wood products, as well as companies that provide services to the wood products industry, such as engineering firms and lumberyards. They were established in the 1940s, as a way to provide technical support to the wood products industry and promote the use of wood as a construction material. The organization also advocates for the use of wood in construction at the national and international levels, and works with code-making and standard-setting bodies to ensure that building codes and standards are favorable to the use of wood.
The American Forest & Paper Association (AF&PA) is a trade association that represents the forest products industry in the United States, which includes the pulp, paper, packaging, and wood products sectors. They were established in the early 20th century and have been representing the industry for more than a century. The organization’s mission is to promote the sustainable growth and use of wood and paper products, and to advocate for policies that support the forest products industry.
Construction
General Construction Techniques
- Heavy Timber Construction
- Tongue-&-Groove Roof Decking
- Framing Basics
- Prescriptive Residential Wood Deck Guide
- Bark Siding Installation Guide
Lumber Data & Specifications
Connection Guides
Engineering
- Design Values for Joists and Rafters
- Span Tables for Joists and Rafters
- Lumber Design Values and Framing Spans
- National Design Specification (NDS) 2018 Supplement
- Beam Design Formulas with Shear and Moment Diagrams
- Interior Shear Walls
- Design Load Tables for Solid-Sawn Lumber Beams and Headers
- Design Load Tables for Wood Columns (Posts)
- Design Load Tables for Wood Studwalls Subjected to Wind Pressure
- Manual for Engineered Wood Construction
- Size-Adjusted Design Values for Western Lumber
Properties
- Common Lumber Defects
- WWPA Grade Stamps
- Natural Wood Siding
- Paneling Basics
- Specifying Western Lumber
- Standard Patterns
- Lumber Storage
- Structural Glued Lumber
Performance
- Inscribed vs. Separate Structures in the WFCM
- Calculating the Fire Resistance of Wood Members and Assemblies
- Component Additive Method (CAM) for Calculating and Demonstrating Assembly Fire Resistance
- Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies
- Flame Spread Performance of Wood Products Used for Interior Finish
- Meeting Residential Energy Requirements with Wood-Frame Construction
- Post Frame Buildings
- Design of Wood Frame Structures for Permanence
- Details for Conventional Wood Frame Construction
- Fire Design Specification for Wood Construction
- Plank-and-Beam Framing for Residential Buildings
- Preventing & Controlling Mold
- Cleaning Mold on Wood
- Mold, Housing & Wood
Douglas Fir
- Douglas Fir Properties
- Douglas Fir Technical Specifications
- Douglas Fir – Coast Forest
- Douglas Fir (SEC)
- Performances of Douglas Fir in Real Outdoor Use Conditions
Western Red Cedar
- Western Red Cedar Properties
- Western Red Cedar Technical Specifications
- Western Red Cedar Designer Handbook
- Western Red Cedar – A Giant Among Giants
- How to Specify Western Red Cedar
- Western Red Cedar – An American Wood
- Growth, Properties & Uses of Western Red Cedar
- Western Red Cedar Quick Facts
- Western Red Cedar (Tropix 7)
Eastern White Pine
- Eastern White Pine Properties
- Eastern White Pine Technical Specifications
- Eastern White Pine from the USA
- Anatomical and Chemical Responses of Eastern White Pine to Blue-Stain Inoculation
- Identification and Evaluation of Defects in Eastern White Pine
- Eastern White Pine (USFS)