This boltless storage shelf is a very universal and strong garage shelf. Boltless design is for convenient assembly. This 5-tier rack is supported by a galvanized, strong metal frame. The powder-coated surface treatment gives it a textured look and water and scratch-resistance, ensuring it keeps as good as new without peeling off or oxidation after long-time usage. This 5-tier storage rack is constructed of a high-quality steel frame and CARB P2 MDF board, capable of firmly holding up to 330 lb. The 5 shelves of this rack are all adjustable for getting items in different sizes well-settled. In addition to vertical assembly, you can also put this rack together into your needed form. Such flexible designs maximize the usage of this rack to its greatest extent. Comprising 5 adjustable tiers, each of which measures 27.2? L × 11.5? This rack can accommodate most of the daily used items at home, or goods in supermarkets, warehouses, and anywhere with storage needs. SMILE MART 5 Tiers Boltless Storage Shelf Organizer Rack Metal Frame for Warehouse Store Home, Black. Material: Iron frame with powder coated & MDF Boards. Overall Dimensions: 27.4? L × 11.6? Each Tier: 27.2? Load Capacity Per Shelf: 330 lb. Gross Weight: 29.8 lb. Net Weight: 28 lb. Please allow ±1cm/ 1/2? Error due to manual measurement. A rubber mallet is recommended for assembly. The rubber mallet is not included. Assembled Product Weight: 28 lb. Assembled Product Dimensions (L x W x H): 27.40 x 11.60 x 60.00 Inches.