i have a32x30 barn half is walled off for storage with a wood floor so that leaves me 16x30 for a workspace. floor is concrete walls insulated with celotex to cut down on the drafts but it doesnt breath well in the summer it can get pretty hot. need to do something about ventilation.mama aproved an air cond. but i want to insulte the ceiling first.this was my first summer working in it since i got it "liveable" the new electrics are nice. no more rotary switck to turn on a single 60 watt bulbhanging from the rafters i have two banks o 8ft florescents that almost blinded me the first time i turned them on. i also have my own breaker box to keep everthing separate from the house. the biggest mistake i made was when i ran the phone line underground in conduit was to run a cable line with it then installed 27" tv ,dvd player and digital surround sound. oh yeah forgot about the lazboy. if i had to do it again i would have waited until the truck was done. also have water cooler ,pop machine and a built in display cabinet for some of my diecast trucks and other treasures. this is the first garage i've ever had .i love it.