We were asked to do a carport that filled up his front yard so we designed a freestanding gable with a whopping 8500 span. That's 3 cars and a motorbike.
Plenty of space to also have a great entertainment area or enclose it for a shed and put a sectional door for added security.
When this project was finished the client was in disbelief at the total size of the carport!
This type of carport could be used in a multi-bay arrangement perfect for a commercial project with these requirements.