US Patent 8181287 Shower tray

A shower tray (10) comprising a trimmable edge (26) for trimming a dimension of the tray to fit a given area, a waste water gully (28) which extends from the trimmable edge (26) and which includes a gully fall (32) in a direction away from the trimmable edge (26), and a waste water surface (30) which extends with the gully (28) from the trimmable edge (26). The waste water surface (30) has a waste water surface fall (34) which is parallel or substantially parallel to the trimmable edge (26) and which leads into the gully (28). As a result of the waste water surface fall (34) and the gully fall (32), a two stage water runoff arrangement is provided.