Abstract: A construction set for the manufacture of frames for furniture, such as display cabinets, showcases and the like, having base profiles and enlargement profiles, wherein the base profiles have on their front viewing side a closed viewing surface and on their back side a profiled connecting edge. The enlargement profiles also have a profile connecting edge which can be connected to the connecting edge of the base profile. The enlargement profiles have, on both oppositely positioned longitudinal edges, respective connecting edges which are constructed mirror-inverted to one another and are also constructed the same as the connecting edges on the base profiles. The construction set also includes connecting profiles insertable between two closely opposed connecting edges such that the inserted connecting profile clamps together the adjacent base and/or enlargement profiles whose connecting edges oppose one another.