In 2002 I built a 40 X 120 Ft, 16 ft high walls tin building. I wish I had put Radiant heating tubes in the floor in the working end. then I could have hung some canvas temp walls in the winter, to hold heat in one end. I just have a large wood stove and I would burn a backhoe bucket load every day and it was just a place to thaw out once in a while. We have relatives that run a commercial garage with 6 employees, and the doors open a lot of time in the winter getting customers cars in and out. He saves all the used motor oil all year to run in his boiler. his boiler is thermostat controlled and it runs all the time in the winter He used 6 in thick concrete with rebar and 6 x 6 12 ga mesh, . They laid 6 in of foam sheets over the gravel base. I put My 2 post lift in the middle of the shop. It should have had it's own access door near an outside wall. we get projects stacked in the way too often. My son is an elect contractor and one year he changed the shop lights in the work end to higher grade flouresent cold rated fixtures. I have the lighting Zoned with 3 way switches. He also put junction boxes in the ceiling so we can have commercial cord drops hanging down, and a pully -rope to pull them out of the way.I have a 42 circuit main box and 20 sub panel for future needs and everything has it's own dedicated circuit., welders, plasmas. saws, mill, lathe, etc.. we laid all the pvc conduit under floor, but had one break when they poured the floor, you need to watch the pour crew.
Last edited by timothale; 12-26-2012 at 08:34 AM.