A shelving system including brackets and shelves suspended by straps from various types of shelving. One bracket for hanging shelves from straps from a solid surface shelf is provided. The bracket includes first and second legs and a connecting portion defining an opening for receiving the shelf. Another bracket for hanging shelves from straps from a wire shelf deck is provided. The bracket includes a plate with first and second edges bent in the same direction, and first and second substantially parallel slots in the plate receive a strap. A shelf for hanging from a plurality of straps is provided. The shelf includes a deck, which may include one or more materials, and a clamp mounted to the deck. A shelving system includes a bracket that engages a fixed shelf, a one strap depending from the bracket, and a shelf releasably attached to the at least one strap.