System for establishing a supporting scaffold framework framework than (1) for the construction of exhibition booths , presentation walls or-shall be presented, [...] mountings, scenes, counters, tables or the like ., from modular, interconnectable skinable frame members and (2), which has a circumference of interconnected run b, preferably straight elongated profiles (3), and, by connecting means with similar profiles (3) of adjacent frame members (2) are connectable, characterized in that a) the profiles (3) of the modular frame members (2) each have a U-shaped or even in regions at least with two closed cross section by at least an average profile web (6) connected, lateral profile legs (4), wherein the central profiled web (6) forming portion of a profile (3) at least one or preferably at least two elongated recesses (8), their longitudinal axes parallel to the longitudinal axis of the related profile (3), and ) the connecting means constituted by brackets (11 ; 21) are formed from U-shaped structure, each having two by a middle clip bar (14 ; 24) connected, lateral clip limbs (12 ; 22, 23), at least one of which is dimensioned in such a way that it consists of two mutually aligned recesses (8) of two adjacent frame elements (2) can be slid, wherein the clearance between the two clip limbs (12 ; 22, 23) is dimensioned in such a way that in the gap thereby formed (16 ; 26) two abutting profile webs (6) of two adjacent frame elements (2) can accommodate.