This product is shipped in two separate boxes for safe transit. The reinforced bottom frame adds horizontal support bars for stability and resistance against wind and snow. The seamless one piece thick fabric resists tearing, fading, Uv, water, wind, rain, dust, and snow. The main door features a double zipper and buckle design that rolls up or detaches for easy loading and ventilation. Strategically placed vents promote airflow and reduce condensation. Includes clear instructions and all hardware for easy assembly. The arched roof offers more space, perfect for cars, trucks, garden tools, lawn equipment, and outdoor storage.