If you still decide to go with the ceramic tile floor in your shower stall, it helps to understand how water, tile and a concrete slab interact. If any water gets through the tile to the concrete ...

Concrete is poured back in the trench to level the slab, and the new floor is covered with ceramic tile. Another option is to install a Saniflo plumbing system above the existing concrete slab.

ASK THE BUILDER | It's absolutely mission critical that the shower base be perfectly level in all directions if you're installing the factory-provided shower door kits.