Ummm.... 78" high is a standard door height. Just one that they don't
stock it in the stores. You have to order it. It's more expensive
than an 80" door, but not by a whole lot. In my opinion, better than
hacking more than the manufacturer's recommended amount from an 80"
door. Most people are too stuipd or lazy to do it the right way and
actually order a door that's the right size.