Abstract: A horizontal, support rack for use in supporting pallets on vertical H-beams includes an elongate support bar having beam engaging clamps at opposite ends thereof. The clamps include J-shaped plates welded to the ends of the support bar, each J-shaped plate cooperating with a clamping element to adjustably secure an end of the horizontal support bar to the adjacent vertical beam. Conventional pallets are supported on adjacent pairs of horizontal support racks or bars.