Patent ID: 7658154

Claim:
A shelving unit comprising: a plurality of shelves comprising a plastic shelf portion each shelf portion having a front edge and a back edge and a plurality of apertures each for receiving a riser, and a first rigid reinforcement member and a second rigid reinforcement member, said first rigid reinforcement member and said second reinforcement member comprising a metal bar extending substantially from one edge of the shelf portion to an opposite edge of the shelf portion; said first rigid reinforcement member being received in a plurality of aligned first channels, said first channels being disposed along said front edge and said second rigid reinforcement member being received in a plurality of aligned second channels, said second channels being disposed along said back edge where each of said plurality of first channels are dimensioned to substantially surround and closely receive said first rigid reinforcement member and each of said plurality of second channels are dimensioned to substantially surround and closely receive said second rigid reinforcement member wherein one of said first channels is located closely adjacent to one of said plurality of apertures and one of said second channels is located closely adjacent to an another one of said plurality of apertures; and a plurality of risers located in said plurality of apertures connecting the plurality of shelves together.