Abstract: A partitioning system is for use in the storage area of a vehicle. The partitioning system includes a multipurpose shelf that can be positioned in a plurality of different locations. The shelf can be disposed (1) horizontally near the top of the rear row of seats to act as a security cover; (2) horizontally along the floor in the storage area; (3) horizontally to cooperate of a folded last row of seats to provide a generally flat surface from the end gate into the passenger area; (4) vertically and adjacent to the rear row of seats; and (5) horizontally, while the end gate is open, such that the shelf extends beyond the storage area as defined by a closed end gate. The shelf includes a pivotable support leg that may contact the vehicle body to support the shelf in this horizontal position that extends beyond the storage area defined by a closed end gate.