Van Hise Rock was named for the preeminent geologist of the 19th century, Charles Richard VanHise, who was also president of the University of Wisconsin-Madison from 1903-1918. VanHise used this rock to show the major structural features of metamorphic* Precambrian* rock and also to demonstrate the kinds of changes that occur in rocks through mountain building periods.
The requirement for seat height, however, is very simple: The top of the seat must be a minimum of 17 inches and a maximum of 19 inches above the shower floor.
Bench will be width of the shower (about 45). We are both small in stature. Wife 5'2 115 lbs. Self 5'8 165 lbs. We both fit in coach airline seats comfortable. Love 1st class seating better. Our contractor suggested 24 high. We tried 24 and our feet are off the ground.