180G triple-layer PE canopy blocks 99% UV rays & waterproof rating - 3x stronger than standard covers for all-weather carport shelter. 1mm powder-coated steel frame boosts 40% load capacity for garage canopy, withstands 75mph winds/snow - super security for your RV/boat/tools. Dual roll-up doors enable 360° airflow as carport shelter or storage shed - Instantly switch between vehicle protection and driveway canopy modes with enhanced ventilation. Wind-optimized arched roof reduces wind resistance vs gable carports. It combines both classic looks and sturdiness. Modular assembly completes in 3 hours - 13x20ft storage shed fits SUV/Tractors/boats/motorcycles/lawn equipment.