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I am excited about being a member on this site. I have been struggling with remodeling our bathroom. It is an older home built in the 1960's so I feel that has made it more difficult: having wall studs that our not lined up, horizontal and vertical pipes where the shower valve and water lines should go, etc. I am trying to decide on what waterproofing material to use so I can get it. I will for sure get the Kerdi shower pan with the drain hole near the end, not in the middle. I do not want to relocate the existing shower drain. I like Isaac's idea of using two 2" Kerdi boards to make a shower curb. The premade Kerdi curbs are rather large (6" x 4.4"). I do not mind the height, but I would like a 3" wide curb to provide more interior shower room. Using Isaac's method I can rip the curb to maybe 3" x 3". But what do I use for the walls? The kerdi system is either waterproof panels or applying kerdi membrane over drywall. Has anyone used traditional cement board with liquid waterproof and a kerdi shower pan? If so, how big of a deal is it to lose out on the kerdi warranty because you did not use their system for the walls? I appreciate everyone's input on this please. Thank you.

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dustin.shoaf51
Jul 24, 2022

Quick update. I put in sister studs every couple studs and attached them with clamps before securing them. I want to make sure I am doing it correctly first. So far I have the following studs clamped with a sister stud: corner stud, 3rd stud, 5th stud, 7th stud. This is how much the sister studs are protruding from top/bottom rails:


Corner stud: flush w/ top rail; 3/8" bottom rail

3rd stud: 3/8" top rail; 3/8" bottom rail

5th stud: 3/4" top rail; 9/16" bottom rail

7th stud: 1.25" top rail; 9/16" bottom rail


All points on each stud matches my laser line.


The fact that the one stud is protruding out 1.25" worries me. That seems like quite a bit.

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