Trestle comprising a support adjustable in vertical direction in a stand and legs attached to the stand. Known trestles of this type comprise legs, which are welded on the stand and, therefore, are bulky and difficult to store and to take along. In order to overcome this disadvantage, according to the invention a trestle is proposed, the legs (6) of which are pivotally attached to the stand (1) so as from a folded-out position, in which they support the trestle in operative position, to be pivoted to a folded-in position, in which the legs (6) substantially are in parallel with the support (3) or stand (1), and a locking ring (10) is provided to lock the legs (6) against unintentional folding-in movement when the trestle is in operative position.