Shouldn't be an issue other than the fact it's still drywall.
joecaption; said:It should have been built using some form of cement board, not sheet rock!
And yes I know what Denshield is, I've also seen it fail.
There was also no need for using 5/8 on a wall.
I was hoping not to not lose depth in the shower niche by adding 1/2” backer board.
It’s currently 3 5/8” deep. Backer board and tile will leave me about 2 5/8”.
But I need to screw the backerboard to something so I’d need a 1/2” piece of plywood.
That leaves me with. 2” deep shower niche.
If I can glue a piece of backerboard to the backside of the sheetrock that would save me 1/2”.
Plan was to just slap 2x4s on the top and bottom and install backerboard to cover up wood studs and metal studs.
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If you use 3" material for the top and bottom of the hole you can screw the backer to the back of them before you put them and the drywall and the backer are not attached, so if anything happens to the drywall it can be worked on with out damage to the shower.Haha thanks Neal!!
I spaced the niches vertically so after tile, backer board, and grout lines, I will have 6 full rows of 3 ” tall subway tile.