Oooo, yes Stan, a heated floor is a must on any garage I would build again for sure.
I keep telling my wife we need a small house with a 4 car attached garage. Hard to build and not make it unsightly if it is 20 feet high
BTW a very close friend built a 30x40 with very high ceiling and all white pvc inside including a ceiling rolling come along lift to raise an engine... just awesome.