Abstract: A U-shaped rack slidably supported for movement between a retracted position located underneath a restaurant table and an extended position projecting outwardly beyond the edge of the table. The rack can be used to support a serving tray when a waiter is transferring dishes, plates, etc. from the tray to the table. The guide structure for the rack includes a channel attachable to the undersurface of the table and two plastic guide tubes extending through aligned holes in the channel flanges.