Fermod, RSUP-10X20-AR, Fermod customized layout for Arctic 10' x 20' walk-in cooler, Shelving Unit Plastic with Metal Post, (2) 22" deep x 47" length x 71" high shelving starter units, (6) 22" deep x 59" length x 71" high shelving extension kits, (1) 22" deep x 35" length x 71" high corner shelving kit, (4) 22" deep x 31" shelves, (4) 22" corner connectors, tool-free assembly, includes (4) sets of (2) horizontal shelf rails, removable vented polymer inserts, pre-installed adjustable composite feet, posts pre-drilled with 11 standard positions, 800 lb. capacity per shelf, 2,000 lb. capacity between two uprights, 20 micron deep anodized aluminum, NSF certified, lifetime warranty against rust and corrosion