Contracted ours with Mayberry Metal Structures LLC. They are out of state ( not sure where ). They contract the work locally. Only been in place a few weeks, but so far happy. Still need to get road base down. That'll come a little later.
12 ga certified, a bit over $4K if that helps.
36 ft. long x 24 ft. wide. 12 ft side legs. 3 ft vertical coverage on the east side ( has a bunch of trees on that side ). 9 ft vertical coverage on west side to help protect from afternoon sun.
I measured this a week or so ago, but didn't write the numbers down. The cross beams are either 14 ft 6 inches high or 14 ft 10 inches high. Either way, high enough for the max legal height of 13' 6". The tippy top is 16' 11". If I pull the truck out, I can extend all three slides and the awnings.
2016 RAM 2500 Cummins SLT Lone Star 4X4 LB
2016 Windjammer 3029W Platinum
I'm not an expert. But I play one on the internet.
You live & learn or you don't live long.