Radiant shower benches and corner benches have been designed and manufactured to provide a tile ready, sturdy, lightweight site assembly solution for installing seats in showers, steam rooms and saunas. They are manufactured using a water and fire resistant XPS board, and covered with a cement polymer layer with an embedded fibreglass reinforcing mesh. This makes them tile ready (after. application of a waterproofing membrane). They can also be coated with a suitable waterproof micro-cement product. (Please confirm the chosen micro-cement suitability for wet areas.) Our RSB benches have a flat seat base, plus matching corner pieces for larger steam room set-ups. Costs based on single unit. Shower Seats. Width: 1200mm. Height: 870mm. Depth: 586mm. Warranty: 10 years. Fixings are included. Warranty: 10 years