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Old 12-11-2019, 07:47 AM   #1
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Drywall an odd INSIDE corner


I framed out an OUTSIDE corner with metal studs and ripped angled pieces of wood to create nice nailing surfaces for my drywall. But then my plans changed and I intersected the OUTSIDE corner with a perpendicular wall and the angle in question became an INSIDE corner.

How should I go about drywalling that INSIDE corner so the drywall is fully supported behind and taping isn't a nightmare.

I nailed up some small pieces of drywall to get a feel for how things would work out. First I put up the window drywall, followed by the drywall for the perpendicular wall. This creates a a corner that's difficult to tape.

Any advice on how I should proceed?
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Old 12-11-2019, 08:00 AM   #2
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Re: Drywall an odd INSIDE corner


Unless you reframe all you can do is deal with it. Just make sure you put all the drywall on one side before doing the other so you'll have a straight line to tape. They sell a rounded rubber knife if you don't want to try and get a stark straight line.


I suppose you could double up on the drywall on the middle window wall to bring it more in line although you'd have a deeper return for that window.
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Old 12-11-2019, 08:20 AM   #3
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Re: Drywall an odd INSIDE corner


Quote:
Originally Posted by mark sr;
Unless you reframe all you can do is deal with it. Just make sure you put all the drywall on one side before doing the other so you'll have a straight line to tape. They sell a rounded rubber knife if you don't want to try and get a stark straight line.


I suppose you could double up on the drywall on the middle window wall to bring it more in line although you'd have a deeper return for that window.
I was thinking I could shave the back on the 2nd piece of drywall (drywall on the perpendicular wall). This would close up the gap with the drywall on the bay window.
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Old 12-11-2019, 09:18 AM   #4
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Re: Drywall an odd INSIDE corner


Can you provide a plan view of how the studs are installed in the corner?
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Old 12-11-2019, 09:25 AM   #5
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Re: Drywall an odd INSIDE corner


Quote:
Originally Posted by huesmann;
Can you provide a plan view of how the studs are installed in the corner?


Lmk if these pics suffice






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Old 12-11-2019, 09:54 AM   #6
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Re: Drywall an odd INSIDE corner


They make an inside plastic corner bead for that type of drywall corner.
When we do Veneer plaster we would use a USG # 900 corner bead & install it backwards works very nicely.
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Old 12-11-2019, 01:10 PM   #7
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Re: Drywall an odd INSIDE corner


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Originally Posted by jaketrades View Post
I was thinking I could shave the back on the 2nd piece of drywall (drywall on the perpendicular wall). This would close up the gap with the drywall on the bay window.



If you did that the drywall would loose all it's strength. The paper on the front and back of the drywall is what holds the gypsum in place.
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Old 12-11-2019, 03:13 PM   #8
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Re: Drywall an odd INSIDE corner


You should cut the drywall edge at an angle. For example, let's say you're going to hang your drywall horizontally, which is standard. So obviously you'll have a 4' wide piece in the North/South direction. Let's say you need a piece 50" wide for that section of the wall. Score the drywall on the back of the board at 50", but do not snap yet. On the front side of the board, score again at 50 1/2" measured from the same edge. Now snap the board, and it will be more or less at a 45 degree angle. You may need to clean up this edge with a utility knife or drywall rasp.


Now you will not have that big gap to fill, and the edge will fit snugly. You can now finish this with standard paper tape. Or, you can use some fancy tape if you prefer.
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Old 12-11-2019, 03:17 PM   #9
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Re: Drywall an odd INSIDE corner


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If you did that the drywall would loose all it's strength.

Lose all its strength? No. We are not concerned with the strength of 1/2" of drywall that's going to be literally right next to a stud and then covered with compound and tape. Drywall does not need strength here as there is no force acting on it. Although I like my method of achieving that angle better than the OP's.
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Old 12-11-2019, 04:47 PM   #10
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Re: Drywall an odd INSIDE corner


Just cut the second piece on the angle.
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Old 12-11-2019, 06:49 PM   #11
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Re: Drywall an odd INSIDE corner


Cut the back of the piece on the right, there's nothing wrong with that. There's several products that can help you keep a straight corner if you can't do it with tape.
"No Coat" makes a tape on inside corner.
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Old 12-12-2019, 10:36 AM   #12
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Re: Drywall an odd INSIDE corner


Quote:
Originally Posted by jaketrades View Post
Lmk if these pics suffice
LOL not a plan view.
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Old 12-12-2019, 10:42 AM   #13
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Re: Drywall an odd INSIDE corner


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Originally Posted by huesmann View Post
LOL not a plan view.


Ha. I read plain view not plan view. Too much IPA.

Iíve got a diagram on my laptop. Will post later.


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Old 12-12-2019, 10:47 AM   #14
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Re: Drywall an odd INSIDE corner


Beer goggles.
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Old 12-15-2019, 10:46 AM   #15
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Re: Drywall an odd INSIDE corner


I would cut the drywall at an angle then use the dry joint compound USG Easy Sand 90 for the first coat, maybe the second, it harder than the pre-mix and IMO kinda of like cement that locks everything together. 40-50 years ago that's all they had and I use to use it. I recently went back to using it and now love it. The FiberFuse tape also would be good to use there as its a type of a synthetic cloth that will embed in the joint compound for strength though it won't bend in the middle like paper tape does.

Last edited by JLawrence08648; 12-15-2019 at 10:52 AM.
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