What is the meaning of calculating the floor area of the staircase in the natural layer?
The most intuitive way is in the construction drawings, with the staircase between the long × wide, on the OK.
In other words, a 10m high floor and 2.2m high floor, staircase calculation area is the same, are calculated in accordance with the level of the floor projection area
Just do not consider the climbing height of the stairs, calculated only on the floor. As long as the floor has a staircase, no matter how high the height, have to calculate a layer of staircase building area.
