US Patent 7857152 Flue spacer

A flue spacer for providing a flue space in a storage rack having a transversely extending spacer surface and first and second legs. The first and second legs extend from the spacer surface and are adapted to attach the spacer surface to at least two uprights of the storage rack so that the spacer surface is offset from the uprights to form a vertical flue space within the storage rack. At least one of the legs may be adapted to attach to a lateral surface of an upright. The flue spacer also may be adapted to extend across multiple storage racks. A shelving system using the flue spacer is also provided.