Quoted from chad:When you have either expanded your basement outward or literally raised up your home to build another level .
The threads are somewhere on Pinside. I just did not look.
Hey! It seemed rational at the time. Granted I had the entire expansion filled before they were done excavating the house lol. Still must say in all my years of hobby and marriage that was one of my oddest brainstorm requests to present my wife. All in all we would do it again. Use the space every day.