17031 Ashlar Slate - Ashlar 0.25" deep GrayLastic™Elastomeric Urethane - Up to 100 uses.Mold-bonded to 0.75" plywood. Add 1.125" to liner thickness. Max Depth: 0.250"Grout Width: 0.25" Part Size:102.75" W x 35.1875" H Click here for cut-sheet