Different depths of drywall

Discussion in 'Remodel Forum & Blog' started by mntentman, Oct 13, 2008.

  1. mntentman

    mntentman New Member

    Aug 2, 2008
    Hi, all,

    We're doing a retiling job on a tub surround. I have demoed the old tile and the drywall behind it. I have half-inch hardibacker to replace the old stuff, but it looks maybe an eighth of an inch less deep than the old stuff. I am wondering if that will be a problem where the hardibacker meets the drywall left behind, outside of the tub surround area. If so, what would the solution be to that? Is there an easy way to take care of it with end or bullnose tiles? (We have not selected the tile yet.) Any suggestions? Thanks much.
  2. Southern Man

    Southern Man DIY Hillbilly

    Jun 27, 2008
    North Carolina
    The old drywall must have been 5/8. A commercial job, like a big apartment building?

    Use floor tile on the new cement board then switch to a thinner wall tile at the transition.
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  4. mntentman

    mntentman New Member

    Aug 2, 2008
    Thanks, good adivce. No, not an apartment, a home.
  5. Cookie

    Cookie .

    Oct 7, 2005
    What about using a filler and then, floating it.
  6. AZ Contractor

    AZ Contractor In the Trades

    Apr 21, 2007
    Phoenix, AZ
    Or you could shim out the hardibacker with drywall shims.
  7. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    While 1/4" hardie is really 1/4", the 1/2" stuff isn't. Normally, that isn't a big deal, since the typical depth of thinset would allow the last tile to bridge that area and if a little bit of the outer edge of the tile doesn't get much thinset, no big deal. In other words, the hardie plus thinset would have the tile even or above the drywall, and it all comes out great. I think they do this because on a floor, it doesn't matter, and on a wall, meeting up with typical 1/2" drywall would have the tile sitting proud of the wall if it was also 1/2" thick.

    If your cbu edge won't be covered by tile, then just drywall mud will fill it in and you can paint it.
  8. frenchie

    frenchie Jack of all trades

    Dec 30, 2006
    Brooklyn, NY and Fire Island, NY
    I usually run the CBU a little past where the tile will end, on purpose. Then tape the seam, and float out over the cbu; get it right, and the tile / wall transition is way nicer than any other option - it's flush.
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