Home>Discussions>BATHROOMS>thickness of backerboard for tile flooring
3 posts / 0 new
Last post
owenpga
thickness of backerboard for tile flooring

I'm remodeling bathroom and i have 1/2 thick plywood across the entire floor and then i have an additional 1/4 inch ply that was under the existing glued down flooring.

if i rip up the 1/4 ply and add 1/4 backerboard will that be stable enough to tile over?

thanks

JLMCDANIEL
Re: thickness of backerboard for tile flooring

I would say no. You need the subfloor thick enough that there is no deflection and ½" isn't enough.

Jack

Forrest
Re: thickness of backerboard for tile flooring

Your finished tile will be broken in no time. You need at least 5/8 or I think its 15/32 sub floor by most codes but I could be wrong. New housing has 3/4 OSB.

Sponsored Stories

TV Listings

Find TV listings for This Old House and Ask This Old House in your area.