By attaching additional racks to starter standard duty double sided cantilever racks, you can create the industrial racking system needed to fulfill your requirements. Connect multiple add-on units to configure a continuous run of storage. *Please note, the selected arm type below may differ from the style displayed in the product image. Bolts to correspondingstarter unitto expand existing storage space 12 straight or inclined arms, with or without lip Arms are adjustable on 3" centers Needing individual components? BrowseHERE. Shipping:3-6 weeks, contact us for most current lead time