Kerdi-Board-SN is a prefabricated shower niche made of Kerdi-Board. Designed for installation in Kerdi and Kerdi-Board shower assemblies. The waterproof niche has a 1/2-in thick by 2-in wide bonding flange and includes a Kerdi-Band frame, screws and washers for easy installation. This ready to tile niche is available in 4 sizes.. Color Family: Orange. Commercial / Residential: Commercial / Residential. Flooring Material Features: Waterproof. Flooring Product Type: Underlayment. Flooring Type: Ceramic,Porcelain,Stone,Tile. Location: Bathroom,Shower,Tub surround. Material: Polystyrene. Package coverage (sq. ft.): 0. Returnable: 90-Day. Subflooring type: Any. Product Length (in.): 28 in. Product Width (in.): 12 in. Product thickness (mil): 0.5. Recommended overlap (in.): 0. Package coverage (sq. ft.): 0. Flooring Material Features: Waterproof. Flooring Type: Tile. Flooring Type: Porcelain. Flooring Type: Ceramic. Flooring Type: Stone. Material: Polystyrene. Flooring Product Type: Underlayment