The shop here at the ranch was built in 2000. I got lots of work done there, but by 2011, two things were clear: the wooden exterior doors were in dire need of replacement and it would be nice to have a covered outdoor space to keep sawdust out of the shop. I installed new pre-hung metal doors and with the help of a neighbor, added a 20-foot extension that year -- complete with a metal roof. There just wasn't a concrete slab.