What is the height from floor to first shelf?

It's 35.5" from the floor to the first shelf.

We'll update this product page with a dimensions visual in the coming days but here are more dimensions for your reference:

*4.75" from floor to the bottom of the back cross section bar that would be close to the toilet valve
*9.5" between the bottom shelf and second-from-bottom shelf
*8.5" between second and third shelves
*6.5" between third shelf and top shelf

Shelf Depth
*Bottom shelf: 6.25"
*Second shelf: 5.5"
*Third shelf: 5.0"
*Top shelf: 4"