How To Build A Carport On Concrete. Use temporary braces to lock the posts into place. However if you are interested in a concrete pad most concrete contractors will usually recommend pouring a concrete pad or concrete slab 34 wider and the same length as the metal carport building frame you order.
If you choose to pour a concrete slab dig out your rectangle and do so. Fill the holes with 6-7. Use a power auger or post hole digger to dig post holes of about two to four feet deep for the footings.
Mark the perimeter of your new carport by driving pegs into the ground at the corners then tying string between them.
In fact most carports are installed over grass stones or even dirt. If you choose to build your structure on cleared and leveled ground instead of on a concrete foundation you will still need to provide concrete anchoring in the form of caissons. Depending on size of carport you may need to have one additional. Fill the holes with 6-7.