Carport Beam Sizes. A carport cannot exceed 1,000 square feet. The best carport designs provide more than just a place to park.
It should be at least 16 feet long and 9 feet wide for an average size car, and larger for multiple vehicles or a bigger car or truck. Floor joist spantables to set your joists. Steel carports that are too tall may not offer enough protection from the weather or may be more likely to blow over in strong winds.
Pergola or carport beams tables 2l and 2h list the sizes and spans for pergola or carport beams in low wind speed and higher wind speed areas.
You’ll want to choose a carport that offers just the right amount of height in order to increase the protection and stability of the unit. It may be freestanding or attached to another structure. The image below is the rough design. Plot this rectangle on the ground.
