That's why I constructed a 10- by 12-ft. shed with a loft some years ago. Although I intended to fill the bays with insulation, I never got around to it. As it turns out, it hasn't mattered much. And ...
There are a lot of options for insulating a building: rigid foam, spray foam, batts and rolls, blown-in, etc. My garage is a pole barn but I had the interior walls framed up with 2x6s so that I could ...