This product has 12 gauge formed channel uprights that are slotted on 3-1/2� centers with 9-1/4� for deck height. The single side units hold up to 7 trays, double sided units hold 14 trays and it has hanger bars/arms and spindles are available as options. It ships fully assembled. Overall Dimensions (In.) LxWxH: 38.25 x 40 x 67.25 For industrial storage items, a signature will be required to accept the delivery. If the item is not acceptable condition, sign for it as damaged or refuse the shipment. Please visit our Shipping Policy for further information.