An apparatus for a forming bundle composed of at least one layer of printed products includes a lift, wherein an area above the lift constitutes a holding space to accommodate the at least one layer. The lift is adapted to lower the at least one layer. A control unit is connected to control movement of the lift. A thickness determining device is coupled to the control unit and arranged to determine a thickness of the at least one layer. The lift is controlled to be lowered corresponding to a previously determined thickness of a layer to accommodate a following layer of a bundle or to accommodate a layer of a following bundle.