Abstract: A cassette for building up drawer cabinets and a drawer included in the cassette. In order to carry and guide the drawer inside the cassette, a rail made of plastic is arranged on each side of the cassette, the rail being mountable on a lower flange projecting inwards from each side wall of the cassette. From the top side of the rail, a longitudinal ridge protrudes, which is distanced from an outside pressable against the side wall of the cassette with a distance which in the main corresponds to half the difference between the width of the cassette and the width of the drawer, and the rail at opposite end portions having similar ramp surfaces, which are oblique in the direction upwards/inwards from the ends of the rail towards the plane top side of the rail. In this way, one and the same rail is, in a universal way, mountable either to the right or to the left in the cassette.

Abstract: A cassette intended for building up drawer cabinets, in which a drawer having a frontal piece is included, a lock is included in the drawer for locking of the same in the cassette. The lock includes a house located inside the frontal piece of the drawer and in connection with an opening therein, inside which house there is a spring-loaded plunger, which is movable vertically in relation to a hole in a bottom piece of the drawer, between a lower, locking position in which a free end of the plunger is behind and below an upper edge of a flange in a frontal frame of the cassette, and an upper, opening position in which the free end of the plunger is located above the flange and goes free therefrom. By the location thereof in the bottom part of the drawer, the lock guarantees that heavily loaded thereby deformed drawers do not risk to unintentionally be pulled out from the cassette.