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American Wood Council
DA 2 - Toenail Connections

4 pages (103 KB PDF)

This Design Aid was developed as supplemental information for the National Design Specification® (NDS®) for Wood Construction to facilitate the design of connections. These tables are based on provisions of the 2001 and later editions of the NDS which are integral to the understanding of the tables.

 
Frequently Asked Questions

How can I determine the fire endurance of an exposed wood member?


Chapter 16 of the National Design Specification (NDS) for Wood Construction provides a code-recognized approach for determining the fire resistance of solid sawn, glulam, and select structural composite lumber (SCL) materials, including laminated veneer lumber (LVL), parallel strand lumber (PSL), laminated strand lumber (LSL), and cross-laminated timber (CLT). Design for Code Acceptance Document 2, titled "Design of Fire-Resistive Exposed Wood Members" (DCA 2) provides resources for users to calculate fire resistance for exposed wood members, in compliance with Chapter 16 of the NDS including flexural members (beams), compression members (columns), and solid lumber including decking and other structural members. Additional information including background, examples, and tables providing allowable load ratios for different member types and sizes can be found in Technical Report 10 (TR10).

See also:


 
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