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Old 03-03-2008, 10:08 AM   #1
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Ceiling Drywall - Question

I know that typically we use 5/8" drywall for the ceiling (which is what I have always done) due to issues with sagging, but how big a difference does this really make? I will be finishing a basement ceiling where the joists are 16" on center...do I really need to use 5/8" here? 1/2" certainly is cheaper and much easier to work with, but I definately don't want to wish I had gone with 5/8" later on down the road.


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Old 03-03-2008, 11:40 AM   #2
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I have used 1/2" drywall on ceilings with no sag. In fact, it was 4' X 12' -1/2" sheets. I always assured that I fastened it properly with at least 1-1/4" coarse thread screws at 6" to 8" spacing. I did this the first time 26 years ago and the ceiling is still hanging to this day.


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Old 03-03-2008, 11:41 AM   #3
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1/2" should be fine for 16" OC joists.
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Old 03-03-2008, 12:01 PM   #4
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Use 1/2" with 16" OC framing. It WILL NOT sag. guaranteed.

Only possible issues would be if the framing is not even. If that is the case, install strapping and furr/shim out, to reduce differences.
- Build Well -
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