Discussion Starter · #1 ·
I had a plumbing leak that we discovered at the end of February. The leak soaked my subfloor which turned out to be 3/4" particle board with 1/2" OSB on top which was covered with linoleum. This was in a utility room with a washer and dryer, toilet and sink. I'm planning on putting down Hardibacker and porcelain tile. I have replaced the particle board with 3/4" plywood and am wondering if I can skip the second 1/2" layer of subfloor and put 1/4" Hardibacker and 16" x 16" tile directly over the plywood? The tile are about 1/4" thick. This will bring the floor level back pretty close to what it was before. Are there any downsides to not having the 1/2" layer on top of the 3/4" plywood?