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Shower Stall Floor


thedelman's Avatar
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Join Date: Mar 2004
Posts: 30

11-03-07, 07:40 PM   #1  
Shower Stall Floor

I hope I have this post in the right place.

I am tiling my shower walls and intend to use a prefabed acrylic shower floor. The stall is 36x36 and the sub-floor is OSB and pretty stable; however, I am thinking if I place a piece of concrete backerboard under the shower base it would provide more support. Thoughts please on whether you think this is necessary.

Thanks so much.

 
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cwbuff's Avatar
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Join Date: Mar 2007
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CT

11-04-07, 10:17 AM   #2  
Backerboard won't provide a much (if any) additional strength. If all you have is a 1/2' OSB subfloor you'll probably get some flexing. Adding 3/4" plywood on top will help provide support, but you'll also have to add some framing to nail it off. Bed the shower base in mortar to keep it from flexing.

 
thedelman's Avatar
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Join Date: Mar 2004
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11-05-07, 07:22 AM   #3  
Thanks, bedding it in mortar seems to be the best way.

 
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