Rubbermaid 38-by-24-Inch Four Shelf Shelving Unit #7107-00 Weight Capacity ? 1000 lbs (250 lbs/shelf) Holds (2) 18 gallon Roughneck totes on each shelf Easy to assemble ? no tools or hardware required Designed for use with Rubbermaid 18" X 36"Cabinets & Shelving Resists moisture and will not rust, peel, split, or rot