What Is The Thickness Of Bath With Shower In Slate Wall Tile For Tub/shower Wall. Need Help With Grout Type, Tips, Cement Board Thickness, Etc.?

Slate Wall tile for tub/shower wall. Need help with grout type, tips, cement board thickness, etc.? - what is the thickness of bath with shower in

The type of tile I never worked with stone, so I'm worried. Can you give me an idea of a few things you should know about the use of stone (slate) for tile in a shower / tub.