Stainless Steel Over shelves are an essential part of any commercial food service restaurant. Over shelves come in single, and double over shelf styles. Over shelves are a great space saver when being installed on a counter. Many restaurant install double over shelves on a under counter and prep table refrigeration unit. See all . When purchasing over shelves stainless steel models will prove to be a better investment due to durability, sturdiness, and longevity.