I did not start out intending to building something quite this big, but I figured out that I could do this for not much more than what my original idea would have cost. I got this steel building kit second hand from a guy in the next county.Then I laid down a big concrete pad. Right now I have a sheet metal fabrication company building me a nice system of exhaust ducts. I had them all run through a heavily insulated false wall which creates a utility closet about 30 inches wide down the back wall of the building. All of the electrical and plumbing of the building runs through there. I know this engineer and he designed it all for me in about half an hour. He was quite pleased with himself and he came over and took some pictures of the job after it had been done. The main idea is to try to keep noise down to a minimum. I put the blower for the exhaust system in the corner and built a sound proof wall around it. You can hear a slight hum when it is running.
I still need to buy a few things. Of course I started out just wanting to build a wood working shop, but that only really takes up about half of the building. I have all of the machines up against that back wall and I am building a series of workbenches and storage cabinets parallel to the machines. I have plenty of room to park my pick up truck in there and work on it if I want to. I have these huge fans and on a hot day like today, that really helps you out. So long as you stand in front of that fan you are nice and cool.