TDL - General Design - Design Standards & Specifications

American Forest & Paper Association
Allowable Stress Design (ASD) Manual for Engineered Wood Construction
Packaged with the National Design Specification (NDSŪ) for Wood Construction (2001 Edition) and its Supplement: Design Values for Wood Construction. #T101.


Load and Resistance Factor Design (LRFD) Manual for Engineered Wood Construction
Parallels format of the ASD Manual and includes the AF&PA/ASCE 16-95 Standard for LRFD for Engineered Wood Construction. #T80.


Wood Frame Construction Manual (WFCM) for One- and Two-Family Dwellings - (2001 Edition)
Provides engineered and prescriptive requirements for wood frame construction based on dead, live, snow, seismic and wind loads derived from the 2000 International Building Code (IBC). Includes commentary. #T10-01.


American Institute of Timber Construction
Standard for Heavy Timber Construction
Requirements for the heavy timber rating of columns, floor framing, roof framing, floors, roofs decks, load-bearing and non-load-bearing walls, construction details, and standard dimensions are described. Recommended for architects, engineers, building officials, timber designers and detailers of glued laminated timber. 1993. 4 pages.


Standard for Preservative Treatment of Structural Glued Laminated Timber
The uses of preservative treatments for the protection of glued laminated timber to resist decay are discussed. Topics discussed are design considerations, species of wood, types of preservative treatment, requirements for retention, penetration, certification and marking, incising, treatment prior to bonding, adhesives and bonding processes, fabrication and machining, care after treatment, field treatment and exudation of natural wood resin. Recommended for all users of glued laminated timber. 1998. 12 pages.


Standard for Tongue-and-Groove Heavy Timber Roof Decking
This standard applies to solid sawn tongue-and-groove heavy timber decking. Its provisions are not applicable to laminated timber decking. Discusses species, sizes and patterns, lengths, moisture content, applications, specifications, weights of installed decking and allowable load tables for nominal 2, 3 and 4 inch thickness decking. Recommended for architects, engineers, building officials, timber designers and detailers of timber construction. 1993. 20 pages.


Standard Specifications for Structural Glued-Laminated Timber of Softwood Species, AITC 117 - 2004.
Design values and other design information for softwood glulam timbers and their fastenings.


Standard Specifications for Structural Glued-Laminated Timber of Hardwood Species, AITC 119 - 2004.
Design values and other design information for hardwood glulam timbers and their fastenings.


APA - The Engineered Wood Association
Panel Design Specification
A manual of recommended design capacities (ASD) and design methods for wood structural panels manufactured under Voluntary Product Standards PS 1 and PS 2, and APA Performance Standard PRP-108. Form D510.


The most recent editions of predecessor publications below remain available on the APA web site until various building code references are updated and new supplements are developed.

Plywood Design Specification
Section properties, recommended design stresses and design methods for plywood manufactured under U.S. Product Standard PS1. Form Y510.


PDS Supplement #1:Design and Fabrication of Plywood Curved Panels. Form S811.


PDS Supplement #2:Design and Fabrication of Plywood-Lumber Beams. Form S812.


PDS Supplement #3:Design and Fabrication of Plywood Stressed-Skin Panels. Form U813.


PDS Supplement #4:Design and Fabrication of Plywood Sandwich Panels. Form U814.


PDS Supplement #5:Design and Fabrication of All-Plywood Beams. Form H815.


Diaphragms and Shear Walls
Design and construction recommendations for diaphragm systems in floors, shear walls, and roofs. Form L350.


The following publications are current and available at the APA web site.

Plywood Diaphragms, Research Report #138
Describes tests of stapled, high-load and glued diaphragms, and those with openings. Summarizes previous APA diaphragm testing. (Form E315 - 60 pages)


Structural Panel Shear Walls, Research Report #154
Includes tests of unblocked, stapled and metal-framed shear walls, and a summary of previous shear wall tests. (Form Q260 - 20 pages)


Wood Structural Panel Shear Walls with Gypsum Wallboard and Window/Door Openings, Research Report #157
Describes APA testing to evaluate Japanese design method for shear walls with openings. Updated March 2004 (Form W250 - 28 pages)


Hardwood Plywood & Veneer Association
Structural Design for Hardwood Plywood Wall Panels - 20 pages. (1996)


Truss Plate Institute
National Design Standard for Metal Plate Connected Wood Truss Construction, ANSI/TPI 1-2002
Standard for the analysis, design, and manufacture of metal-plate-connected wood trusses. Includes commentary and appendices.


Wood Truss Council of America
Commentary for Permanent Bracing of Metal Plate Connected Wood Trusses
Guidelines for designing and specifying permanent bracing for metal-plate-connected wood truss systems. Illustrations clarify key points. 26 pages.