Own multiple vehicles? Effectively protect all of them without constructing a garage by using an 18-foot wide metal carport. As one of the strongest portable storage structures available, an 18-foot metal carport is built for long-term storage. With a triple-layer galvanized steel tube frame and a 29-gauge steel roof, one of our 18-foot wide metal carports naturally provides the durability necessary for sheltering your cars, boats, or RVs from UV damage and water. Because a long-term storage solution needs to be part of owning a seasonal vehicle, get an effective shelter by choosing one of our 18-foot wide metal carports.