How to determine the depth of the staircase between the stairs
The width between the two sides of the staircase
Followed by the hospital, and then office buildings, dormitories, hotels, etc., residential intercourse between the deep requirements of the lowest, open room between the general 2.4 ~ 2.6m can be, into the depth of 4.8 ~ 5.4m
This should be based on building fire, disaster relief, evacuation of the functional requirements to determine the different architectural features of the staircase between the opening and the depth is not the same, in general, the stairs between the primary and secondary schools into the deepest.