How big is a standard garage?

Steel buildings that are designed to be used as residential garages typically come in widths from 10 ft to 52 ft. Generally, a single garage for one vehicle is at least 12' wide by 22' long. A double garage is at minimum 18'. wide by 22' long. If a longer garage is desired, it’s relatively easy to extend the length since most steel garage kits can be lengthened in 4 ft or 5' increment. The height of residential steel garages range from 7.5' to 16'.

A standard single car garage should be at least 12'x24', with double garages ranging 24' x 24', 24' x 28' or 28' x 28' to be really useful sized residential garage. The simple answer is build as LARGE as you can as you will always need extraspace for tools, spares, bikes etc.

There is no standard size for a commercial garage. Commercial garage buildings can be built in widths of up to 200 ft, with unlimited lengths. The height of a commercial garage building is usually determined by the type of vehicles and equipment that will be stored inside.

Two main design styles are popular for prefabricated steel garage buildings. Straight wall garages resemble traditional constructed garage buildings. Garages with a Quonset or arch design on average cost 30% less than straight wall designs of the same size. Since the roof is not composed of a separate piece, arch garages are stronger and sturdier and more resistant to hurricanes and earthquakes.