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  1. #1
    Join Date
    Apr 2014
    Posts
    1

    Default 1/2 cementboard too thick, 1/4 too thin - help!

    Had to tear plaster off behind sink as it was damaged, now I want to install a new backsplash. I am left with a rectangular section of the wall that is the exposed lath. I thought cementboard would be the right kind of backer for the tile, but on top of the lath it is not flush with the plaster next to it. It is about 1/8 inch out of flush. Using 1/4 which isn't recommended for tile makes is -1/8 inch out of flush with the plaster. What's my solution?

  2. #2
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,797

    Default Re: 1/2 cementboard too thick, 1/4 too thin - help!

    Use " and level with thinset.

    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  3. #3
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,969

    Default Re: 1/2 cementboard too thick, 1/4 too thin - help!

    For all things tile related, head on over to the John Bridge Tile Forum.

    There you can start a new thread with pictures of your dilemma

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,505

    Default Re: 1/2 cementboard too thick, 1/4 too thin - help!

    Quote Originally Posted by JLMCDANIEL View Post
    Use " and level with thinset.

    Jack
    OR...

    Install 1/4" plywood or shims on the studs, then attach your CBU.

  5. #5
    Join Date
    Sep 2012
    Location
    Boston
    Posts
    1,004

    Default Re: 1/2 cementboard too thick, 1/4 too thin - help!

    BINGO.....dj's solution is what i would do

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