Abstract: A shower tray comprises a metal structure (2) and a plurality of plates (3), the structure (2) in metal material comprising an upper peripheral frame (4), a bottom wall (6), and side walls (7) defining a collection tank, the metal structure (2) comprising at least one hole (8) for a drain pipe, the structure (2) in metal material further comprising a plurality of cross bars (9) extending between two opposite side walls (7), arranged in contact with the bottom wall (6) and comprising protuberances (10) projecting on the opposite side with respect to the bottom wall (6), each plate (3) comprising a first (3a) and a second (3b) surfaces that are mutually opposite, the first surface (3a) comprising grooves (11) designed to engage corresponding protuberances (10) of the cross bars (9).