if you're looking for a reliable shelter for your cars, trucks, or boats, a 12*21 ft heavy - duty carport is exactly what you need. this carport is built with a galvanized steel roof and a powder - coated tube frame, making it extremely solid and . it can endure harsh weather conditions, be it snow, sleet, or intense sunlight. rust - feature ensures its long - term durability, so you don't have to worry about it getting damaged over time. when it comes to installation, carport is designed to be installed on various level surfaces such as mud, asphalt, or concrete. sloped roof, equipped with an upgraded high - density weather tape, effectively prevents water leakage, protecting your vehicles from elements. this multi - functional carport 't limited to vehicle storage. it can serve as a perfect venue for trade shows or other outdoor events. charcoal - colored finish adds a touch of sophistication to your outdoor space. assembling carport is made easy with included detailed instructions and accessories. it's advisable to have a couple of people help with installation on a flat surface. with its generous dimensions of 247.31 in width, 139.91 in depth, and 103.04 in height, and weighing 358.9 lb, this large steel carport offers a spacious and secure area for your belongings. it provides a practical and stylish solution for all your outdoor shelter needs.a 12*21 ft carport is a great choice for protecting your vehicles. this heavy - duty carport has a galvanized steel roof and a powder - coated tube frame, which is rust - and can handle different weather conditions. it can be installed on level surfaces like mud, asphalt, or concrete. sloped roof with an upgraded high - density weather tape prevents leakage. this multi - purpose carport can be used for storing cars, trucks, boats, or as a shelter for outdoor activities such as specific activity . charcoal color gives it a nice look. assembly is easy with included instructions and accessories. it's better to have 2 or more people for installation on a flat surface. with its dimensions of width in width, depth in depth, and height in height, and weighing weight lb, it provides a spacious and secure area.