The present finding relates to a door for shower boxes comprising a mobile crystal plate (11) forming the actual door, a fixed crystal plate (12) to be fixed to the wall by a pair of metal brackets (13), and at least two hinges (14) for pivoting the mobile plate (11) relative to the fixed one, characterised in that said hinges are glued to the respective plates. Another feature of the finding consists in the presence of adjustment pins having threaded ends in opposed direction intended to screw one into the hinge (14) and the other into the corresponding fixing bracket (13).