The invention relates to a supporting structure (11) for a furniture body which is to be installed on a wall (18) and comprises an outer body (15) and an inner body (19) that can be lowered, comprising two side elements (1, 1a) to be installed on the wall (18) at a distance from each other and at least one cross member (12) detachably connecting the side elements (1, 1a) to each other, wherein the supporting structure (11) comprises separate fastening points (2a, 2b; 13a, 13b) for independently installing the outer body (15) and the inner body (19) on the supporting structure (11), wherein each side element (1) has a preferably preinstalled, vertically movable supporting element (6) on the inside facing the inner body (19), wherein the supporting elements (6) comprise the fastening points (2a, 2b) for the inner body (1a).