The picture that you posted of a "carport" isn't quite what I pictured as a carport. I looked at the company that you're looking at and as you can see they don't sell in Vermont so with our usual snows and wind, their structures probably aren't built/designed to take that kind of loading. Personally having farmed a lot of years and now being in the construction field, I would want a heavy duty framework as when operating machinery as well as having animals secured within............. things happen!
One more thought. Every metal building that I've been around on a farm, needed to have planking run along the inside of the walls of the building to stop the animals and the bales of hay from going through the walls. The screws will do a great job of holding the metal to the walls but will do nothing if a cow leans up against it or if your son is mad that he has to unload a load of hay and starts just wildly throwing bales off the wagon. What we always did was to plank the walls 4'-6' high and then use 3/4" CDX plywood above that. That seemed to keep everything inside the barn.
Yeah that's a good idea. And in reference to your other post, we definitely don't have the snow you guys do
But somehow....... walls do get bumped so I want something as sturdy as possible to take the brunt of the hit!
Greg have you ever used polygal for a roof or anything? I'm have a ice shanty I want to use this stuff as a roof. Thx
