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Question:

How to raise cement board under vanity to make it even with the rest of the tile floor?

When I was replacing vanity in small bathroom, I discovered that old vanity was sitting on top of the wooden sub-floor while the rest of the floor (with ceramic tile) is about whole inch above the sub-floor. I'm planning to install tile (never did it before) and I've read that you attach cement backer board to sub-floor and use adhesive to attach tiles. However cement boards are sold in 1/2 thickness. What should I do to make whole sandwich (board, adhesive, tile) to be on the same level as rest of the tile floor? I'd much appreciate any suggestions! :)

Answer:

Screw down a piece of 1/2 plywood to the subfloor and then screw down the cement board on top of that. If you are still a tad low you can always spread on a layer of thinset mortar to bring it up to the same height as the rest of the floor. Whenever I do a bathroom I always remove the vanity and tile under it just like the rest of the room. That way, everything is level and if you ever want to replace the vanity with a smaller one or a pedestal sink the floor is good to go. What I have found, and you have found too, is that most people are just too damned lazy to bother doing that.
May 11, 2017
you can use floor leveller. you can but it at home depot,$35, follow the instuctions as far as how much water to add. it mixes into a watery slurry that levels it self once poured. it hardens as hard as cement and then you can glue your tile to it.
May 11, 2017

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