Abstract: A unit for filling an area having a floor, a first side wall, a second side wall and a back wall has a pan, a shower area, a zero threshold drain, a frame, a space created by the frame and the second side wall and a storage unit disposed in the space. A shower area is defined by a first panel, a second panel and a third panel and has an opening through which a user may enter, the opening also being defined by the panels. The first panel is adapted to be disposed against the first side wall and the pan and the second panel is adapted to be disposed against the second side wall and the pan. The zero threshold drain is disposed across the opening. The frame is adapted to support the third panel and create the space between the second side wall and the frame.