The most common failure in custom tiled showers is omitting the pre-slope.
You must pitch the subfloor underneath the waterproof liner, not just the mortar bed on top of it. Without a pre-slope, water that permeates the grout collects on the flat liner, becomes stagnant, and creates a "mud sandwich" that leads to mold and liner rot. 2. Blocking for the Future shower installation tricks.7z
Corners and transitions where walls meet or the floor meets the wall are "change of plane" areas. The most common failure in custom tiled showers
Install 2x6 or 2x8 horizontal blocking between studs at specific heights: 36 inches: For future grab bar installation. Never use hard grout in these corners; it
Never use hard grout in these corners; it will inevitably crack due to house settling. Use a 100% silicone caulk that is color-matched to your grout. Most major grout manufacturers sell matching tubes of sanded or unsanded siliconized caulk for this exact purpose. 6. Valve Depth Precision
Calculate your tile grid from the . It is better to have a cut tile at the floor than a 1/2-inch sliver at the ceiling where it's most visible. 4. The "Flood Test" Verification