Shelf  20x45” Length 52.75”, Height: 65” Width: 20”,Height Between Shelves: 16” Capacity Per Shelf: 125 lbs. 4" casters on 3 &4 shelf 2 shelf cart has 3" castors. Mesh Cover, flame & mildew Resistant. Antimicrobial vinyl cover. #345-2C-3-2 shelf   #345-3C-4-3 shelf   #345-4C-4- 4 Shelf Options #300-IC-Lg Utility Bag  #R-5HD-upgrade (4)5” Casters 2-locking Latex Free  UNSPSC#42192404