There is someone on here always asking will a 2x6 span 12 ft or building questions. Well in rural Tennessee no building permits needed. This young hard working young man sure can do a lot with junk. The first photos are of what he is building now. He gets 10 ft by 4 ft pallets free from where he works. I was amazed passing how he did it all by himself. Now before you say it will never stand I snapped a photo of one right beside this one that has been there at least 4 years. He also gets some kind of plastic/rubber fabric , that is what he used to cover the first one with. Sure is a hard working young man.