J. Partee
: I am building a shower stall in a new addition which : will have a ceramic tile floor. I need to find out : what the material(s) under the tile needs to be and : what thicknesses they need to be. I presently have 3/4 : T & G OSB over 2×8 lumber at 16 OC in place and : nothing else. I am an amateur on my first try and would : greatly appreciate any insight you could provide me on : this one. : Thank You J.Partee, A ceramic tile shower base requires what is called a mud set pan. The first step is to pick up a bolt down shower drain. Next a PVC shower pan liner laid onto the floor of the pan and up the walls, 18, and over the threshold of 2x4s, three laid flat, 4-1/2 high. Wonder board is installed over the PVC liner. Then the mortar is mixed 5 parts sand to 1 part cement, sloped to the drain, making allowance for the thickness of the tile you are using. Regards, Terry Love
