Anti UV Galvanized Steel Coating sheet(Roof: 0.3mm Wall:0.25mm) Steel Tube with Powder coating 1mm Walk-in Huge 13 X 20 FT Storage Shed: This outdoor shed offers 250 sq. ft floor space for your truck car, large-size tools, lawn equipment, and bicycles to store. With a hinged front double door and side door, you can drive in or walk into the shed so easily. Also, the doors with lock holes, ensure organization safety. Ventilation & Lighting Effect: 4 essential vents in the wall provide better light and ventilation, and a tilted roof, and a lockable door help to prevent odors and reduce moisture. the sloping roof is specially designed to prevent rainwater from gathering and rusting Utility Storage Shed Detailed step-by-step installation instructions are included and well-packaged package with fast delivery.