Temporary elevator built from a kit, having • a platform configured as a frame, wherein the platform incorporates at least two frame components (3, 4) that are detachably joined to each other, • a number of upright supports and crossbars to form a tower, wherein each upright support is constructed from insertable supporting members disposed one above the other and the supporting members are provided with guide rails that are configured as profiled strips that have a longitudinally extending groove and the upright supports and the crossbars enclose a clearance profile of the tower, • a rope winch driven by a motor, • an elevator cage that is vertically movably disposed between the upright supports of the tower and incorporates a connecting element that can be connected to the rope of the rope winch and incorporates guide arms that can fit into the grooves in the guide-rails in such a way that the elevator cage can be guided in the guide-rails in a horizontal direction and can be moved within the clearance profile by means of the rope that extends from the rope winch to the connecting element of the elevator cage and wherein the frame components (3, 4) of the platform and the supporting members of the tower are configured as metal tubes and can be optionally connected to or detached from each other by means of an insert connection, characterised in that disposed on the elevator cage is a springloaded locking bar that can be moved between a travel position that is taken up by the locking bar within the clearance profile and a locking position in which the locking bar projects outwards beyond the clearance profile and wherein the locking bar is held in its travel position under spring pressure by the rope. • a platform configured as a frame, wherein the platform incorporates at least two frame components (3, 4) that are detachably joined to each other, • a number of upright supports and crossbars to form a tower, wherein each upright support is constructed from insertable supporting members disposed one above the other and the supporting members are provided with guide rails that are configured as profiled strips that have a longitudinally extending groove and the upright supports and the crossbars enclose a clearance profile of the tower, • a rope winch driven by a motor, • an elevator cage that is vertically movably disposed between the upright supports of the tower and incorporates a connecting element that can be connected to the rope of the rope winch and incorporates guide arms that can fit into the grooves in the guide-rails in such a way that the elevator cage can be guided in the guide-rails in a horizontal direction and can be moved within the clearance profile by means of the rope that extends from the rope winch to the connecting element of the elevator cage and wherein the frame components (3, 4) of the platform and the supporting members of the tower are configured as metal tubes and can be optionally connected to or detached from each other by means of an insert connection, characterised in that disposed on the elevator cage is a springloaded locking bar that can be moved between a travel position that is taken up by the locking bar within the clearance profile and a locking position in which the locking bar projects outwards beyond the clearance profile and wherein the locking bar is held in its travel position under spring pressure by the rope.