GoBoard Curb is designed to provide a thick block-like underlayment profile for use in frabricating the curb of the shower pan. Multiple curbs can be placed next to eachother for larger shower areas. GoBoard curb is engineered for durability, yet is up to 80% lighter than other building materials typically used to fabricate shower pan curbs. Color/Finish Family: Off-white Manufacturer Color/Finish: Off-white Type: Shower curb Material: Polyisocyanurate Warranty: 10-year limited CA Residents: Prop 65 Warning(s): No UNSPSC: 30181500