This X2, I can tear up a piece of wood, But i ended up buying a book on shed building at Home Depot that contained all the math for the rafters and particulars that I was not familiar with. I put up a 10x16 with a ramp and 6ft doors in a weedend's time with a little help. Far better than the stapled together ones you see out there. Little metal sheds are real bad about condensate and mildew.