The present invention includes a support structure of the furniture body to be attached to the wall portion (18) about (11). The support structure (11), the outer frame (15) comprises a lowerable inner frame member (19), two sides attached to the wall portion (18) in a state separated from each other configuration and component (1, 1a), contains at least one cross member which side constituent element (1, 1a) can be releasably coupled (12), the outer frame (15) and the inner frame member ( 19) and the support structure (11) in a fixed position that is provided apart for mounting each independently (2a, 2b; 13a, has a 13 b), each side component (1) is , the inner frame (19) at the inner side facing the side, has a movable support element (6) a possible be previously installed in the vertical direction, the support component (6) has a fixed position for the inner frame (19) (2A, 2b).
.TECHNICAL