Durable heavy-duty build: Upgraded 20x20 ft metal carport with industrial-grade steel frame and galvanized steel roof, all components treated with a triple rust-resistant coating for long-lasting outdoor performance and protection for 2 cars, boats, or trucks. Waterproof all-weather protection: Galvanized steel roof plus waterproof sealant tape at roof seams prevents rainwater seepage; engineered to withstand up to 140 mph winds and 160 lbs/sq ft snow load for reliable protection in harsh weather conditions. Reinforced stable structure: Designed with reinforced side braces and heavy-duty ground anchors to enhance stability and durability; suitable for installation on dirt, concrete, and sand, keeping your carport secure and steady year-round. Spacious versatile shelter: 20x20FT footprint offers ample room for full-sized pickup trucks, SUVs, and boats; also ideal as an outdoor canopy for parties, weddings, trade shows, and other events needing reliable shade and weather protection. Easy assembly support: Ships in a cardboard box with clearly numbered parts and a detailed step-by-step instruction manual; we recommend preparing a drill and ladder before installation, and our customer support team is ready to help with any questions.