How to design the office road?

The clear width of each staircase in the office building road should not be less than 1.40m, the step height should not be greater than 0. 16m, and the step width should not be less than 0.28m The key plate is the design of railings, which is the most important part in the stair design. The main materials of stair swing handrails are forged steel, cast iron, solid wood, ceramics, safety glass, etc. I hope my answer is helpful to you.