Base'N Bench 36 in. x 48 in. Single Threshold Shower Base and Bench Kit with Left Drain and Tileable GrateTile Redi has taken the stress out of measuring and installing your shower with a built in bench with Base'N Bench Shower Kits. Now you can buy our one piece, tileable shower pan and shower bench as a set that is pre measured to fit together within your shower stall size. Available in Redi Trench, WonderFall Trench, Wonder Drain, and Redi Base models for the designer look you prefer. All models offer the top quality features you expect from Tile Ready