Anyone build a garage frame? I see there's been canopies, but when I search for garage, I don't see anything. Something like a 20 x 20 or 20x24 with 9'-10' tall doors. I'd plan to use wood to some extent to attach walls and roofing to. Been debating this system VS combining 2 of Harbor Freight's 10x20's VS building a wood frame/pole structure. At least 1 door has to be 9' wide by 9' tall. Thoughts?