A plastic composite modular rebuildable pallet has replaceable top boards, stringers and bottom boards made from a thermoplastic resin with variable amounts of long glass fiber reinforcements molded into the pallet boards. The top boards have on center circular indexing buttons. The stringers have top lengthwise molded in channels for receiving multiple reinforcing metal bars, rods or tubes held in place by the top boards. The bottom boards have two circular cups at each end on their bottom surfaces for indexing with the on center buttons of the below pallet when the empty pallets are stacked for storage and transportation. This arrangement allows for the bottom boards to be horizontally reversibly mounted on the bottom surface of the stringers in either 180? horizontal direction. The bottom boards have thick bottom feet pads with foot wear-resistant pads for sliding engagement with ground surfaces.

Shipping pallets 10 that may be constructed, at least in part, from structural members 100 that are largely fabricated from paper and paper based materials are disclosed. One or more of the structural members 100 may include a wrapper 60 secured in tension to a core 20. The core 20 may include one or more laminated fiberboard sheets 40. Because of the use of paper and paper based materials, the one or more aspects of shipping pallets 10 in accordance with the present inventions may be recycled.