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Unread 01-07-2021, 08:27 AM   #31
ss3964spd
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Given your 36X72 shower and multiple heads it'll be fine for two.

Are you still considering curbless, Phil? To CX's point; the slope of the foam pan will be fine in the 36" dimension, but may lack in the 72" dimension. In order to determine what the slope will be you need two bits of information on the foam pan: 1) how thick it is at the cut out for the drain and 2) how thick it is at the perimeter. Your goal is 1/4" slope per foot from the farthest corner.

I suspect the foam pan will be at least 1 1/8" thick at the perimeter. If you are also adding Ditra Heat the overall height of the shower floor is going to approach 2". How high can you raise the rest of the bathroom floor without causing a big step up at the entrance to the bathroom?
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