40” x 62” waterproof, tileable shower pan for *Schluter-KERDI-LINE drain at the back wall installation on plywood subfloor. For a curbless shower use only for installations when floor joists are running parallel to shower entry. It is lightweight, site-sizable to fit existing opening (cuttable with utility knife), sloped, with factory attached *Schluter-KERDI-LINE waterproofing membrane. It’s low profile shower pan made out of 100% post consumer recycled PET foam. Compressive strength is 145 psi. For curbless showers use with RAPID RECESS Bracket Kit-K15 model #RRT2CSLDK and Schluter-KERDI-LINE drain model #KL1V60E140. ADA compliant.