Portable steel carports are available in many colors: black, evergreen, gray, brown, beige, blue, red, and sandstone. Their widths range in two foot increments from 10 to 30 feet, and their heights from 6 to 12 feet, in one-foot increments. Commercial grade canopies are made with a 14 gauge galvanized steel frame.
They use 5′ Rafter Spacing for extra strength, and 12.5oz., 24 mm thick all weather cover with 15 year mfr. warranty against fading, chalking, cracking or peeling. Steel carports are waterproof, and use UV treated tops with heavy duty ratchet straps or bungee cords to attach the frame.
Portable steel carports come in several sizes. There is the 20 by 12 (feet) version, with its tubular galvanized powder coated steel poles and 14 by 14 mesh of 1000 denier nylon thread with double stitched hem, zinc plated eyelets and reinforced corners with UV treatment cover. Silver in color, with an easy assembly and up to three year warranty, this type costs between $250 and $400.
Included are the fittings, straps, ropes, and dirt and concrete anchors. Because of the UV cover, it protects well against rain and sun damage. You can buy them with gables, windows, doors, and vertical roofs. They can hold up against 55,000 psi, and can fit into the bed of a full-size pickup truck. Most come with slip-fit connections, making construction a snap.
Then there is the 12 by 20 by 8 (feet) enclosed house-style. It protects against snow (with its snow-slide cover), wind, rain, and sun damage. Some are even hurricane rated (up to 150 mph winds)! The frame is constructed of 2″ Diameter, 17-Gauge Steel Tubing, Powder Coated, 4-6 rib. The cover is 7.5 oz Polyethylene, 3-Ply, Reinforced, UV Treated.
The rear and roof panels are 26- to 29-guage steel and are separate and can be removed, and the front door is a double zippered roll-up.
The rear door is non-zippered, with an optional pulley system for rolling up. It has 15-30 inch anchors suitable for concrete or mobile home attachment. With a three-year warranty, the price is between $400 and $600.
Assembly could not be easier; no welding or heavy equipment is required. The first step is to map out where the carport will go using the frame poles. Then anchor into the ground at defined increments. Next, the side frame pieces simply slide into place along the tops of the anchors to finish the frame.
Then, the roof panels lock into place along the top of the frame pieces. These pieces are all flexible enough that one can add more roof panels along the sides and create walls. This means you could start out with an open concept and build it up to be a completely-enclosed garage.