Freestanding Decks Solve Ledger Attachment Challenges - Fine Homebuilding
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Freestanding Decks Solve Ledger Attachment Challenges

comments (0) March 29th, 2012 in Blogs
Mike_Guertin Mike Guertin, editorial advisor

Freestanding deck avoids ledger attachment challenges.  This design comes from the AWC DCA6 Prescriptive Residential Wood Deck Construction Guide
Freestanding decks can still be attached to the house for stability.
Freestanding deck avoids ledger attachment challenges.  This design comes from the AWC DCA6 Prescriptive Residential Wood Deck Construction GuideClick To Enlarge

Freestanding deck avoids ledger attachment challenges.  This design comes from the AWC DCA6 "Prescriptive Residential Wood Deck Construction Guide"

Photo: American Wood Council

 

Decks were not in the plans when many homes were built, so the framing was not designed to permit easy deck ledger attachment. Many homes framed with wood I-joists and floor trusses, for example, will require extra blocking and engineered reinforcement in order to mount a ledger securely. 

Older homes that are timber-framed or balloon framed present more challenges. Likewise, newer homes built with SIPs or ICFs are difficult to mount ledgers to. Then there are cladding challenges: EIFS, stucco, veneer brick, stone, synthetic stone and other thick and non-structural siding materials don't lend themselves to easy ledger installation.  

While there are work-arounds you can employ to mount a deck ledger to a house with a challenging situation, it may not be worth the effort. In these cases, I often opt for a free-standing deck, which can be simpler to build and more cost-efficient when compared to the cost to cure a challenging ledger situation.

Free-standing doesn't mean the deck can't be attached to the house, it just means that the deck frame must be self-supporting.  You can still install a couple bolts or screws into the house frame – just as long as the deck has footings all around.

A free-standing deck needs a beam, support posts and footings along both the outside and the house side. Often, those footings near the house will have to be dug to the depth of the house foundation  footings to reach undisturbed earth.

 A good resource for designing a free-standing deck is the American Wood Council's "Prescriptive Residential Wood Deck Construction Guide," available online at www.awc.org.  See pages 4, 14 and 15 for information on freestanding decks.

 
 
Also, read the other articles in the dificult-deck-ledger series:

Mounting Deck Ledgers to Engineered Floor Systems

Mounting Deck Ledgers to Floor Trusses

 


posted in: Blogs, deck, deck ledger, DCA6

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