Abstract: A rackable pallet is disclosed that has a load bearing deck, a plurality of cross beams, and a plurality of removable base supports connected approximately perpendicular to the cross beams, and is made of a polymer. One disclosed pallet is open from the bottom and particularly suited for use in large automated warehouses, where machinery lifts and moves pallets by remote control. In one embodiment the pallet comprises a support structure that comprises a plurality of cross beams and a plurality of base supports connected to the cross beams. The deck and the cross beams typically define a single, injection-molded piece of polymer material. The base supports may be removable for repair or replacement. In one embodiment the load bearing deck has a plurality of domes in an array that provide high strength, stiffness, and rigidity.