18"Deep Chrome Wire Shelving Units with 5 Shelves As a great alternative to a stainless steel shelving unit, enjoy the benefits of our chrome wire 5 shelf storage units. They are approved by the National Sanitation Foundation for use in a medical or food service environment, making these shelving kits ideal for the dry storage of important goods. Add mobility to your unit by adding heavy duty casters and gain access from any side. Stack several rolling carts side by side to optimize storage by sliding the entire row!