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Re: Residential Deck Live Load

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I think the higher code load was primarily intended for balconies that are cantilevered from the main structure due to the issue of lack of redundancy of the cantilever and the tendency for deterioration at the connection to the main structure.  However, any sizable deck will attract a significant number of people at some point in its life and will have a higher likelihood of seeing the design live load than most floors will.
Bill Cain, SE
Berkeley CA
-----Original Message-----
From: Domenic DeAngelo <domdean(--nospam--at)>
To: seaint(--nospam--at)
Sent: Mon, 11 Apr 2005 16:40:43 -0400
Subject: Re: Residential Deck Live Load

Under item 27, I am not sure why the Code would state the load of 40 psf for all other areas except balconies and decks unless the intent is for decks and balconies to have a different load but I would agree that the code is rather ambiguous about it. I would always use 60 psf and note it on the drawings.
From: David Smith
Sent: Monday, April 11, 2005 4:16 PM
Subject: Residential Deck Live Load

Per IBC 2000, what is the proper live load to use for a residential (house) exterior deck?
Table 1607.1 Item 6 says "Same as occupancy served".
Table 1607.1 Item 27 says use 40 psf for all other areas except balconies and decks.
I would tend to design for 60 psf but list 40 psf on the plan.  Any comments would be appreciated.
Dave Smith
Smith Associates