Started out a 30' diameter grain bin. I cut a 10' high 12' wide door in it. It was 24' from the slab to the top of the walls. I went up 12' and put in a floor. It has a wall hugging stairwell going up to the upstairs and room for lots of parts. You can get two trucks inside and close the door but it's a bit tight. It is better suited for one with lots of room. I added the 24' X 26' slab and awning for a little more room. It works for me.
