Sierra StoneWET APPLICATIONS MUST BE INSTALLED WITH EPOXY AND A GROUT WITH <1% WATER ABSORPTIONTile size - nominal 1" x 1"Tile thickness - 5/16" (8mm)Grout joints - 1/16" (2mm)Tile per sheet: 144Sheet Size: 11 7/8” x 11 7/8”Sheet Coverage: .977 SQFAll tiles are mesh mounted.* Due to the variance ..