Schluter®-KERDI-BOARD-SB is a prefabricated shower bench, made of KERDI-BOARD, for use in conjunction with the Schluter®-Shower System. KERDI-SHOWER-SB is waterproof and ready for tile, leaving only sealing of joints and corners to complete waterproofing. The bench is available in triangular and rectangular configurations in the following sizes (width x depth x height). The triangular benches are 16" x 16” x 20” (41 x 41 x 51 cm) and 24” x 24” x 20” (61 x 61 x 51 cm). The rectangular benches are 38” x 11-½” x 20” (97 x 29 x 51 cm) and 48” x 16” x 20” (122 x 41 x 51 cm).