I have a cluster that can find this from Deconstructing the Brep from Element Geometry.
Just wondering if there is a RIR Component?
This is useful to find all Boundary Vertices if you were setting out the Floor with Set Out Points.
Would also be great to update Floor Boundaries with a new Boundary Curve.
Great component to help find a Flat Floor Profile.
Would be good to find the Top of the Concrete Vertices