Mine is never big enough either. I'm getting rid of a lot of automobile items that have been "saved" and a lot of room is becomming available. I don't have walls and the 12' figure is just a reference. It takes about 1.5 stalls to work on a car and this ordeal will probably be about the same but the shop equipment is larger, as are the parts. If I had walls to deal with I would not be able to get by the truck as I'm bigger than 24" in diameter as it is. All of my trucks take up at least 24' of a stall but I'm looking to use the building for a different purpose than it was purpose built for. Don't want to modify the property because when I retire from the job, do not plan to stay in this locale. Multiple overhead doors on a long sidewall would be great but really not an option to me. Once the addition is erected, I won't have many problems as storage will be available. If I just could bring myself to let things sit outside and deteriorate naturally all would be normal. You prolly realize that me and normal would not a harmonious relationship however. I'm just searching for ideas at this point. My paint room is much too small to routinely do trucks so that may be demolished and another built in the storage area. It has it's own heat source so could operate when needed only. This in itself would gain another stall area. When I relocate one of the surface mount car lifts, another stall space opens up. There is all kinds of room to be had. I've just not been in that mode for a number of years. I designed, purchased, erected, and wired this building myself and it is purpose built. Thought I'd want to work cars until I passed but with the body shop having served it's purpose, my priorities have changed. I could either sell the property, or do what I want and have postponed for several years: Restore trucks; (sick, ain't I)? Rob