A rack system for supporting one or more information handling systems is provided. The rack system may include a rack and one or more rails coupled to the rack and configured to support one or more information handling systems. At least one of the rails may include an upper support structure, a lower support structure, a slot defined between the upper and lower support structures and configured to receive a guide structure of the information handling system, and a shelf. The slot may have a front end opening proximate to a front end of the rail, and extend toward a back end of the rail. The shelf may extend forward from the front end opening of the slot, and can support a portion of the information handling system when the guide structure is not received in the slot. The shelf may also not be coupled to any other rail.