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2018 NDS
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Design Standards

The 2018 National Design Specification (NDS) for Wood Construction was developed by the American Wood Council’s (AWC) Wood Design Standards Committee and has been approved by ANSI as an American National Standard. The 2018 NDS is referenced in the 2018 International Building Code. Significant additions to the 2018 NDS include new Roof Sheathing Ring Shank nails and fastener head pull-through design provisions to address increased wind loads in ASCE 7-16 Minimum Design Loads and Associated Criteria for Buildings and Other Structures. Purchased copy includes integral commentary.

See updates and errata for the 2018 NDS.

The 2018 NDS Commentary is available as part of a package in the AWC store.

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  • Table of Contents
  • Chapter 1 - General Requirements for Structural Design
  • Chapter 2 - Design Values for Structural Members
  • Chapter 3 - Design Provisions & Equations
  • Chapter 4 - Sawn Lumber
  • Chapter 5 - Structural Glued Laminated Timber
  • Chapter 6 - Round Timber Poles & Piles
  • Chapter 7 - Prefabricated Wood I-Joists
  • Chapter 8 - Structural Composite Lumber
  • Chapter 9 - Wood Structural Panels
  • Chapter 10 - Cross-Laminated Timber
  • Chapter 11 - Mechanical Connections
  • Chapter 12 - Dowel-Type Fasteners
  • Chapter 13 - Split Ring and Shear Plate Connectors
  • Chapter 14 - Timber Rivets
  • Chapter 15 - Special Loading Conditions
  • Chapter 16 - Fire Design of Wood Members
  • Appendix
  • References
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