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.
Building Code Requirement: Bathrooms shall have a minimum floor to ceiling height of 80 over the fixture and at the front clearance area for fixtures. A shower or tub equipped with a shower head shall have a minimum floor to ceiling height of 80 above a minimum area 30 X 30 at the shower head.omments: A seat in a shower is not required, but it is a good idea, and should be considered when remodeling a bath shower. However, it must not infringe on the minimum interior size of the shower. The shower at the shower head must be large enough for a disk 30 in diameter to fit inside the shower walls.