Abstract: A one-piece paperboard partition and a die cut blank for forming it. The blank includes a rectangular panel made up of one set of two rectangular flaps or one or more sets of three rectangular flaps. The sets of flaps and the flaps in each set of the panel are arranged in a row and are foldably connected along one or more fold lines. Each set of flaps consists of one inner flap and one or two outer flaps. Each outer flap in a set includes a continuous slot, extending from the same side of its set of flaps and parallel to the fold lines. The blank also includes one or more bridging members, each of which is foldably connected to an inner flap, along the one slotted side of the set of flaps to which the bridging member is connected. The blank further includes one or more rectangular forked panels, each of which is foldably connected to the opposite side of a bridging member, remote from the one slotted side of the set of flaps to which the bridging member is attached.