The Metro SM863054-ADD is a cantilevered shelving unit designed to enhance your storage capabilities. This SmartLeverâ„¢ Add-On Kit features overall dimensions of 56-1/5"W x 34-1/2"D x 86-3/8"H and is compatible with 54"W x 30"D Metro shelves. The kit includes one upright, one leg, two cross braces, two cross bars, and all necessary hardware for easy assembly. Constructed from epoxy-coated steel, this shelving unit is durable and resistant to corrosion, making it suitable for various environments. NSF certified, it meets strict public health standards for safety and sanitation.