How to count, where to where the net high, there are, how high the state regulations, trouble to a professional lawyer to my official data, please refer to. (People's Republic of China national standard GB50352-2005 "Civil Building Design General" on the civil building staircase between the high requirements) to my reply. Thank you, I can not turn this document.
Want to understand the words, then see the provisions of 6.7.5, I give you a screenshot it.
6.7.5
The height of the upper and lower aisle of the stairway platform shall not be less than 2m and the height of the ladder shall not be less than 2.20m.
Note: The height of the ladder is the vertical height of the upper edge of the upper protrusion from the leading edge of the tread (including the range of 0.30m outside the minimum and maximum stepped leading edge lines).
Landlord optimistic, only on the staircase between the relevant net high, in the "Civil Building Design General" GB 50352-2005 in the clear,
