[EXTENSION UNIT] Keg Rack, 54-3/16" W x 17-3/8" D x 67-1/2" H, 6 Keg (18 Sixtel) Storage Capacity, (1) 17x54" Keg Shelf & (1) 14-1/2"x54" Case Shelf & (1) 17x66" Middle Upright, Must Be Used With SKSTCS Profile Only, Welded Keg Stop Standard on all Keg Shelves, Kegs Sit Directly on Floor and Keg Shelf @ 31.5” AFF, Galvanized Steel Construction, Assembled with Grade 5 Hardware, Made in USA, Ships Within 5 Business Days of Order & Deposit