Drywall on 24 inch ceiling


Old 10-13-03, 10:44 PM
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Join Date: Apr 2001
Location: USA
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Drywall on 24 inch ceiling

I am working on completing a room addition. I had a contractor frame it in and put it under roof. Now its up to me to complete . My question is this : I am going to put drywall up on the ceiling . The builder put the ceiling truses on 24 inch centers. How thick does the drywall need to be ? Some people told me if I use one half inch it will sag over time . Some people told me to use five eighths and others have said to put 2x4's in between the truses . What shoud I do ? I want it to be right the first time , so I don't have to do it again. Thanks for any help.

PS , The room is 24x31 with cathedral ceiling.

Last edited by Phil Bell; 10-14-03 at 06:46 PM.
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Old 10-14-03, 05:49 AM
coops28's Avatar
Join Date: Feb 2002
Location: Kansas City
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5/8" will work best for the 24" centers. How big is the addition? Is the lid flat?
Old 10-14-03, 04:05 PM
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yes definitely use 5/8" drywall 1/2 inch will sag no matter what you do
Old 10-14-03, 08:24 PM
awesomedell's Avatar
Join Date: Mar 2003
Location: USA
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24" centers require the use of either 5/8" or else you could use 1/2" anti-sag rock, the latter would only be available from a drywall supplier.

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