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UN-level floor....What to use to level bathroom floor?

14 years ago

What is the recommended method to level backer/hardiebacker board when you're laying it out for a tile floor installation?

If the only method is to float the floor, what do you suggest for a wood subfloor made of individual boards (with gaps) and not plywood?

Any clue?

We have a 1047 house and the floor is not leve, despite the face we installed 2/4s to create subfloor.

BUT there's gaps of abut 1/4- 1/2 inch.

So....what to use to LEVEL the backerboard we need to lay, that the tile and floor is ultimately level????

Thank you in advance!? We are novices.....

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