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how to level my ceiling?

Sip's Avatar

Join Date: Apr 2007
Posts: 71

08-08-14, 02:50 PM   #1  
how to level my ceiling?

Hi all,
I'm in the middle of a kitchen gut. 10'x10' kitchen. The floor was out of level from settling, and the ceiling is too. But strangely, not as much as the floor.

It's a 1909 philly row home. Ceiling joists are also cantilever joists for room above. They run with the home, instead of perpendicular to it.
They drop about 1/4 to 1/2 an inch. I originally thought I'd by 12' x 2"x4" and nail one end in to a joist, and then adjust the other till it was level. The problem is the existing joists have a bunch of twist to them.

So now I'm thinking I should run strapping perpendicular to the joists so my drywallers have a flat surface to glue and screw to.

Do I just use 1" by 3" boards? Should I instead use 2"x4" laid flat? Also, Is shimming the easiest way to do this?
I understand a masonry line and nails to find level. But how does that work over the entire ceiling? Do I do a string for each joist?


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chandler's Avatar
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Join Date: Dec 2005
Posts: 39,968

08-08-14, 03:29 PM   #2  
Strapping would be your easiest solution, aside from fixing the sag properly from the foundation up. Strings are good, but a PLS laser or rotary laser would be better and easier to use.

calvert's Avatar

Join Date: Jan 2014
Posts: 466

08-08-14, 03:39 PM   #3  
If you think you can install suspended ceiling grid then check out "drywall suspended ceiling assembly". Theses systems are easy to install versus messing around with warped studs or strapping and a variety of shims.

You generally can get the material from any drywall or acoustical supply company.

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