40'x60'x20' Double Truss Industrial Warehouse Canopy Shelter Heavy Duty

40'x60'x20' Double Truss Industrial Warehouse Canopy Shelter Heavy Duty. Double-truss hot-dip galvanized steel frame with heavy-duty industrial strength, excellent wind and snow resistance for superior stability and durability. Optional 450g / 610g / 750g / 850g PVC covers - waterproof, UV-resistant, and flame-retardant, ideal for long-term outdoor use. 11 main arch groups at 10 ft spacing, large clear-span design with no internal columns - perfect for equipment, vehicle, machinery, and material storage, with easy installation.