When I am determining the total rise for a staircase I am doing it based on the following calculation for spanning levels/floors.

Elevation[font=times new roman](Highest Level) [/font] + Height[font=times new roman](Highest Level) [/font] - Elevation[font=times new roman](Lowest level) [/font]

What I need to know is:
- Does Level Height include Floor Thickness?
- Does Level Elevation measure to the bottom of the floor or the top of the floor?

I think that for the last step to come out even with the floor I might need to adjust my formula to;

Elevation[font=times new roman](Highest Level) [/font] + Height[font=times new roman](Highest Level) [/font] + Floor Thickness[font=times new roman](Highest Level) [/font] - Elevation[font=times new roman](Lowest level) [/font]

but I am not 100%. I may just be overthinking it.