Tennsco Regal Shelving Add-On Unit Regal Shelving Starter Set and Add-On Unit Heavy-duty rolled steel, sand color frame with oak laminate shelves that adjust every 1-1/2". Over 600-lb. capacity per shelf. Each Starter Set and Add-On Unit includes five adjustable shelves, top shelf and 12 shelf supports. Units snap together without tools or fasteners. 36w x 76h. Assembly required. [Photo shows Starter Set with two Add-On Units to form a complete wall system.] Add-On Unit T-shaped upright attaches to Starter Set, sold separately, to join units. Forms a complete wall system. 12" Depth—Shpg. wt. 80 lbs.