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gunlake 01-09-2011 01:34 PM

Porch remodel
I am lowering a ceiling in my porch. I have to span 12 feet and hang dry wall. What size ceiling joists do i need?

bjbatlanta 01-10-2011 12:37 PM

Best bet would be to check with your local building dept., but I would think 2"x6" @ 16" o.c. would be sufficient for 1/2" regular. Is this going to be an enclosed porch? If it's just going to be screened, I'd highly recommend using wood rather than drywall....

wombosi 01-10-2011 07:26 PM

right now is it open up to the rafters, or will you be hanging another ceiling off the existing ceiling?

if rafters are exposed, you can use 2X4 or 2X6 with a vertical piece of wood (2X4 or even 3/4" plywood) lapped onto joist and rafter to break the span.)
i would do this regardless of framing member, as 12' is a long span.

if hanging off existing ceiling, it all depends on what's up there...
i would also discourage use of sheetrock on a porch.

bluebird5 01-23-2011 09:27 PM

a 2x6 is allowed to span a maximum of 12 feet

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