NDS Archives and Historical Design Values

Designers frequently request historic lumber design values. Below are links to several historic documents that may assist in evaluating existing structures:

(This is a non-printable version of the 1944 NDS – see instructions in the sidebar for ordering a printable version.)

In 1944, the copyrighted first edition of the National Design Specification for Stress-Grade Lumber and Its Fastenings was published by the National Lumber Manufacturers Association. Revisions of the 1944 edition were issued in

  • 1948
  • 1950
  • 1951
  • 1952
  • 1953

New editions were published in

  • 1957
  • 1960
  • 1962
  • 1968
  • 1971
  • 1973
  • 1977
  • 1982
  • 1986
  • 1991
  • 1997
  • 2001
  • 2005

Click here for a list of revised supplements and amendments.

The scope of the Specification has remained essentially unchanged since the first edition was issued in 1944.The name of the Specification was changed to the National Design Specification for Wood Construction in the 1977 edition. For more information, see the History of Development of the NDS here.

Purchase PDFs

To purchase printable PDF archival copies of pre-2012 editions of the NDS, click the image below.

Non-members: $50 per edition
Members: $25 per edition

Note: Pricing is for one copy of one edition of the NDS, for example the 2001 NDS.


Errata and addendums that have been developed for AWC documents are available here in PDF format.