Reply by tmasondarnell

I built you same size shop in 2010.

For insulation, I ended up doing vapor barrier and batts. Even though I am big proponent of closed cell spray foam, for me, it was a matter of time and monry. I could do the insulation for cheaper and on my own schedule. I am in Central Texas and run the HVAC system in the shop 24/7. So far, the electric bills have not been an issue.

For the electrical, I fell you pain. I did electrical in the walls. Not sure if it was the best choice.

Mark Spagnuolo (the Wood Whipser) posted a video on his new shop in CO. He did an interest thing with electrical where he had 2×120 plugs and a 240 plug at each electrical box. That way he could rearrange his tools without worrying.