A lattice work (5) comprises a number of first bars (1) and second bars (2) which extend at an angle to one another. The bars are interconnected by means of coupling elements (3) which are srewed to one another. The bars are interconnected by means of coupling elements (3) which are screwed to one another. The coupling elements each comprises a first coupling part (11) and a second coupling part (21) which are coupled to one another at a connecting surface (31) or connecting ring (31') by means of screw members (32). The first coupling part here comprises a first groove (12) in its connecting surface for receiving part of the first bar therein, which groove extends over the length of the coupling part. The second coupling part comprises a second groove (22) extending from a first side to a second side in its connecting surface so as to accomodate part of the second bar.