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Old 11-11-2017, 05:10 PM   #1
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How thick should a dry mix shower pan be?


Is there a min tickness. My shower is 4' X 6'5" I want the thickness around the shower drain to be an inch but around the perimeter it goes from 2" - 1-1/2" because the existing floor is not level (this is a curbless shower) I can add an additional 1/2" to 3/4" to the subfloor in the bathroom area outside the shower to allow an additional 1/2" - 3/4" of concrete shower pan if it's necessary.

I'm covering the shower pan / mortar bed and durock with kerdi membrane and thinset.

What say you old wise ones of the DIY Forum?

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Old 11-13-2017, 10:59 AM   #2
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Re: How thick should a dry mix shower pan be?


I'll answer myself - I would add 3/4" just because MOAR is better...

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Old 11-13-2017, 04:16 PM   #3
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Re: How thick should a dry mix shower pan be?


Insure that you have adequate slope when building your preslope. That will depend on the size of the shower base. 1/4" per foot at least. Then your liner and your slope, so you may have up to a few inches by the time it is over, again depending on size.
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Old 11-14-2017, 06:39 PM   #4
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Re: How thick should a dry mix shower pan be?


Quote:
Originally Posted by chandler48 View Post
Insure that you have adequate slope when building your preslope. That will depend on the size of the shower base. 1/4" per foot at least. Then your liner and your slope, so you may have up to a few inches by the time it is over, again depending on size.
I made the thickness around the drain 1-1/4" and around the perimeter it goes from 2" - 2-1/2" thick. No liner just Kerdi membrane covering.
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