You need to check out the garage journal board. I have a 36x56 workshop. I built it 15 years ago as a shop. I have a 2 post lift, concrete floor with 200 Amp service and water. I have my walls insulated with 6inches of fiberglass and a oil based furnace. I have a second floor in my shop for storage of rims, parts/etc. I don't have any pictures presently on my iPad. My shop kinds looks like Kirk's above from the inside. The exterior is a sheet metal without any windows. The Amish built the shell and I did all of the electric, concrete, insulation work. I also built the second floor and ran the water.