Rectangular shower trays allow for a more generous shower space than square trays. As well as working well in a corner these trays are great for placing against a flat wall. Teamed with a single glass panel they can also be used to form a walk-through shower, with access at both ends. The Duschplan steel enamel shower tray by Kaldewei is available from The Radiator and Bathroom Gallery. It measures 750 x 1400mm, is 65mm-thick, and retails from £520.