Updated AWC Deck Design Guide

[FrankWoeste]

AWC Deck Design Guide based on the 2012 IRC now available:

http://www.awc.org/publications/DCA/DCA6/DCA6-12.pdf

Among other sections being updated, post and footing sizes expanded.

[Bill Kibbel]

Thank you, Frank. This topic is now on the front page as "Latest news for Home Inspectors".

[inspector57]

Thankfully brick veneer attachment is specifically addressed! It may have been there in past editions but this is plain and easily quoted.

PROHIBITED LEDGER ATTACHMENTS

Attachments to exterior veneers (brick, masonry, stone), hollow masonry, and to cantilevered floor overhangs or bay windows are prohibited (see Figures 17 and 18). In such cases, the non-ledger deck is required (See NON- LEDGER DECKS).

[Eric B]

In figure 10 there is reference that diagonal bracing is not permitted on center posts. What would be the reasoning?

[inspector57]

I'm not the author but I would guess the "required" diagonal bracing cannot be on the center post, not that you can't add bracing there but that it can't be counted as the required bracing.

Provide diagonal bracing parallel to the beam at each corner post greater than 2'-0" in height as shown in Figure 10. Diagonal bracing is prohibited on center posts.

[Mike Lamb]

The specs provided in the document for ledger fastener spacing (page 15) for 10' joist span is 14". The Chicago porch/deck guide I use and a JLC guide I reference have a spacing of 8" and 8.6" respectively for the same span. Seems like a large discrepancy.

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[Mike Lamb]

Does the 2006 IRC say anything about: Attachments to exterior veneers (brick, masonry, stone) and to

cantilevered floor overhangs or bay windows are prohibited?