Abstract: A system for holding nested boxes features a rack including a support, a pair of generally parallel vertical members mounted to the support and a number of generally parallel horizontal members extending between the pair of vertical members. The system also features a box holder assembly including a base featuring a hook portion and a channel. The hook portion of the box holder assembly engages one of the horizontal members of the rack. A fixed arm is attached to the base. An adjustable arm features a sliding section positioned in the channel of the base. A spring urges the adjustable arm towards the fixed arm so that the fixed arm and the adjustable arm engage the nested boxes.

Abstract: An upright adapter for attaching an otherwise non-compatible fixture, such as a shelf assembly, to a shelving system upright featuring a number of slots separated by a number of dividers features an adapter tube. The adapter tube also features a number of slots separated by a number of dividers. A number of locking tabs are attached to the adapter tube. The locking tabs are adapted to engage the slots and dividers of the shelving system upright. A sliding tab featuring a leading end is attached to the adapter tube in a sliding fashion so as to move between a retracted position and an extended position. When in the extended position, the leading end of the sliding tab engages a slot of the shelving system upright so as to lock the upright adapter to the upright.