I'm planning to build a shop and I'm somewhat stuck on how big to build it, steel or wood building. I have a 21x30 garage attached to my house and it's already full of my toys and tools, barely can get my wife's car in it, even my truck won't fit in it length wise due to shelves by the end of the wall. I was thinking about the common 40x60 building but I'm not sure if it's overkill, don't want to regret from taking too much space in my backyard. I'm not exactly sure what's a comfortable size to work on a truck to restore (to rebuild my 06 CCSB) while having space for a 2 post lift, tools and toys. Any experience would be helpful to get my mind set on how big to build it. My goal is to have a 12 foot door in case if I come across a heavy equipment to work on. I do plenty of side works from family and friends for the basics brakes and occasional repairs.