I am finally going to pull the trigger on a metal carport and am limited on space. The biggest I can do is right around 24'X 24'. Height is important too and figured 12' with a no gable A-Frame will b...
You should measure, but I think you'll be over if you ever go with a crew cab. Also, be careful about the length required for your boat. Yes, you could go with a swing tongue, but I think 24 is probably too short. I also think 12 foot is too short as well. You can easily go over with a different truck/camper.