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Old 09-01-2015, 07:56 PM   #1
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Drywall ceiling gap


I am new to this forum and have always had someone around to hang drywall when I needed it. But now I have a small project and need a little guidance as I am the one who will be doing it.. I am putting drywall over old plaster ceiling after repairing plumbing leak in ceiling. The room is 12'-2" wide.....where is the best place to have the 2" gap that will be filled in with drywall strips? By the wall or in-between 2 courses of drywall?

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Old 09-01-2015, 09:43 PM   #2
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I think you're being a bit naive to presume that your walls are straight and at 90 degree angles to each other. Plastering was done by hand, and you'll probably find your walls aren't straight and the plaster thiickness varies; especially in the corners where the plaster gets thicker to cover the expanded metal corner bead.

If it were me, I would put up two strips of 6 foot long drywall, and then just fill the gap (if any) between them with base coat plaster. Paint the old plaster ceiling and edges of the drywall with diluted white wood glue, and mix a bit of glue in with your base coat plaster, and it'll stick well. Then, just cover the base coat plaster with joint compound. Sand smooth, prime and paint.

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Last edited by Nestor_Kelebay; 09-01-2015 at 09:55 PM.
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Old 09-01-2015, 10:04 PM   #3
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horizontal low on the wall would be my choice. pieces dont really matter, a good tape/mud job will make it disappear.
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Old 09-01-2015, 10:50 PM   #4
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Thanks for the replies...........I don't think I made it clear as to what I am doing.......I am installing drywall on the ceiling.......I should have said the ceiling is 12'-2" wide.......I know it will be 3 rows of drywall across the ceiling, and there will be some gap to fill in with strips of drywall. Where would it be best to have the gap? In between 2 rows of drywall or at the ceilings edge?
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Old 09-02-2015, 01:00 AM   #5
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If I have a big split, I like to put it in the middle. Easier to feather it smooth than try to do it up at a corner.
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Old 09-02-2015, 08:27 AM   #6
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+1 for post #5. not at a corner.
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Old 09-02-2015, 09:19 AM   #7
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Thanks for the quick reply! Makes good sense to not have the gap by the ceiling edge. I have laid out a pattern for the drywall and it looks like I will end up with a 1.5" gap to fill in.
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Old 09-02-2015, 09:26 AM   #8
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This house was built in 1948 and instead of plaster over lathe it has 16" wide x 48" long pieces of what look to be drywall and then a layer of plaster over that.
Is that they did to transition from plaster to drywall?
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Old 09-02-2015, 09:45 AM   #9
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Use one 52" wide sheet and there will be no gap.
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Old 09-02-2015, 11:11 AM   #10
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Quote:
Originally Posted by mako1 View Post
Use one 52" wide sheet and there will be no gap.
if he's using 4x12 to minimize field seams, where would a 52" cut go? or are you meaning a 54"x12 board? 54" board is not so common.
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Old 09-02-2015, 11:13 AM   #11
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I would leave a I inch gap on both sides---then pack the gap with 20 minute easy sand--

use 'original straight flex' to tape the inside corners---you will be fine.
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Old 09-02-2015, 11:19 AM   #12
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Quote:
Originally Posted by oh'mike View Post
I would leave a I inch gap on both sides---then pack the gap with 20 minute easy sand--

use 'original straight flex' to tape the inside corners---you will be fine.
that's adding an extra seam. i would rock it so that the gap was in the field, then add in the small 2" rip, mud/tape/feather it.
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Old 09-02-2015, 11:28 AM   #13
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He said the room was 12' 2" which would be 146".Use 2- 48" sheets and a 52" sheet cut to fit. It is actually sold in 54" sheets.Spilled some tea on my keybpard the other night and it's not working weel

Last edited by mako1; 09-02-2015 at 11:34 AM.
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Old 09-02-2015, 12:06 PM   #14
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Quote:
Originally Posted by mako1 View Post
He said the room was 12' 2" which would be 146".Use 2- 48" sheets and a 52" sheet cut to fit. It is actually sold in 54" sheets.Spilled some tea on my keybpard the other night and it's not working weel
yes, if 54" was common, then yes, then use 54" board for the 1st run. lets see if 54" board is readily available to the OP.
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Old 09-02-2015, 12:18 PM   #15
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You're correct it is not available everywhere but even the HD has it here.

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