Contemporary Mocha (5/8 x 5/8 x 1/4) GS19 Tile size – nominal 9/16″ x 9/16″ Tile thickness – 5/16″ (8mm) Grout joints – 1/16″ (2mm) Tile per sheet – 324 Sheet size – 11.75″ x 11.75″ (298mm) All tiles are mesh mounted. More in: Basic, Mosaics