1997 National Design Specification® (NDS®) for Wood Construction - Commentary

A Commentary on the National Design Specification for Wood Construction was published in 1993. It contains background information concerning the provisions of theNDS complete with historical development, example problems, and tables comparing the 1991 design provisions with earlier editions of the standard. An Addendum to the Commentary was added in 1997 outlining provisions of the 1997 NDS.
The complete NDS Commentary is available as a free download in two formats:
Complete NDS 1997 Commentary document (216 pages, 5.083 Mb) Feb 2004
Updates/Errata
Technical Questions
To submit a technical question regarding AWC design standards, e-mail: info@awc.org. See contact info. for other options.
Parts of NDS 1997 Commentary Document
- Cover, Table of Contents and History - (11 pages, 371 Kb)
- Part 1 - General Requirements - (3 pages, 92 Kb)
- Part 2 - Design Values - (13 pages, 388 Kb)
- Part 3 - Design Provisions - (33 pages, 832 Kb)
- Part 4 - Sawn Lumber - (21 pages, 573 Kb)
- Part 5 - Structural Glued Laminated Timber - (11 pages, 305 Kb)
- Part 6 - Round Timber Piles - (4 pages, 116 Kb)
- Part 7 - Mechanical Connections - (8 pages, 238 Kb)
- Part 8 - Bolts - (18 pages, 475 Kb)
- Part 9 - Lag Screws - (9 pages, 238 Kb)
- Part 10 - Split Rings - (9 pages, 265 Kb)
- Part 11 - Wood Screws - (7 pages, 198 Kb)
- Part 12 - Nails and Spikes - (10 pages, 294 Kb)
- Part 13 - Metal Connector Plates - (1 page, 40 Kb)
- Part 14 - Miscellaneous - (1 page, 45 Kb)
- Part 15 - Special Loading Conditions - (9 pages, 266 Kb)
- Part 16 - References - (14 pages, 311 Kb)
- 1997 Addendum to the 1991 NDS Commentary - (30 pages, 192 Kb)