Guidance on Deck Ledger Attachments to Floor Trusses

Originally published by: SBCAMay 24, 2015

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SBCA has developed a research report entitled, “Attachment of Residential Deck Ledger to Metal Plate Connected Wood Truss Floor Systems,” which provides construction details for residential deck ledger attachment to metal plate connected wood truss floor systems. The applicable codes and standards follow the 2009 and 2012 International Building Code (IBC) and the 2009 and 2012 International Residential Code (IRC). Proper attachment of the deck ledger to the house is critical for ensuring that an “attached” deck is safely and securely supported at this location. This report provides details for attaching a 2" nominal lumber deck ledger to residential floor systems constructed with metal plate connected wood (MPCW) floor trusses.

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