How do I measure for a floor tile installation?

Cosette
by Cosette

We are remodeling our master bathroom which has a tub now to a shower stall. The flooring needs new tiles. When calculating for tile do we need to measure underneath where shower is being installed or just the exposed area? Thanks

  4 answers
  • Oliva Oliva on Jan 13, 2019

    Hi, Cosette,

    You'll need to measure your shower's "pan" (floor area), but typically, smaller tiles are used in a shower to insure more grout lines and less liklihood of slippage.


    If your shower won't be any wider than the existing bathtub's footprint, measure your existing floor space, assuming you'll install a larger tile in this space. Remember to allow a minimum of 10% extra tile when you purchase, in event of breakage.

  • Kelli L. Milligan Kelli L. Milligan on Jan 13, 2019

    Are you not tiling shower? Length x width + 10%. You don't tile under a prefab shower but I tile under the vanity. It makes for a better job, also under toilet.

  • Ebbjdl Ebbjdl on Jan 13, 2019

    Cosette, Measure the entire room, then subtract the tiles that would go under the tub and shower stall. Depending on the tile size. Aloha!

  • Johnavallance82 Johnavallance82 on Jul 05, 2021

    Hi, Take the room measurement as a whole along to the tile shop and ask them to calculate the tiles required.