The invention relates to a device and method for automatically stacking packages on a roll container in a predetermined spatial arrangement for forming a stack, comprising at least one feed conveyor which arranges the individual packages in a predetermined order; a lifting and lowering unit for lifting and lowering of the roll container (R) in the Y-direction; at least one sliding plate and one pusher in order to transport the packages in the Z-direction to the predetermined position in the stack (S); moveable journals (47) being provided in order to separate the lateral walls of the roll container. Preferably, the journals are arranged on the rotating disks (48).