Ok, this may sound a little redneck, but check it out. Garage doors are water and wind proof. Putting them together makes water and wind proof walls. Now you can go to your local garage door dealer and ask for panels that have slight dings in them. The customers don't want dings, but a shed wall, well who cares, right. If you put four up on three sides, and manufacture a door for the front, and a few on the top with some framing, you have a shed. I did it, and it was wife approved. It took me about six to eight hours to complete, and I have a 16' deep by 9' wide by 9' talll shed, with an automatic door, and a button on my bike. If you want pics, just let me know. It's worth it if you don't want to spend a bunch, you don't have much time, and you need reliable housing for your metal queen, there you have it. I worked at a garage door place, so it cost me about five dollars in touch up paint. The damaged panels are real cheap, and well worth it.