What is the size of the long, wide and high stairs of every step of the stairs?
Note: 250mm can be used if necessary.
The net width of the staircase should not be less than 1.10m. Six-story and six-storey residential, while the width of the ladder with a railing should not be less than 1m.
Note: The net width of the stairs is the horizontal distance between the wall and the center of the handrail.
Staircase step width should not be less than 0.26m, step height should not be greater than 0.175m. Handrail height should not be less than 0.90m. Staircase horizontal railings greater than 0.50m, the armrest height should not be less than 1.05m. Stair rails between the vertical bar clearance should not be greater than 0.11m.
The net width of the staircase platform shall not be less than the net width of the staircase, and shall not be less than 1.20m. The vertical height of the lower edge of the structure of the stairway to the pedestrian passage should not be less than 2 m. Entrance floor and outdoor ground should be height difference, and should not be less than 0.10m.
When the net width of the stairwell is greater than 0.11 m, measures to prevent children from climbing must be taken.
Ladder handrail height 0.9M, horizontal section railings greater than 0.5M should be 1.05M
Residential floor staircase staircase of the minimum net width of the two sides of the wall 0.9M, side of the space 0.75M. Residential stairs step width should not be less than 0.22M, step height should not be small 0.20M.
Small staircase design and staircase standard reference:
The height of the steps should be sized according to the slope of the steps and the size of the human foot.
1. Stairs slope range of 20 to 45 degrees (not more than 38 degrees), that is, between 1: 2.75 to 1: 1.
2. The width of the tread should be the foot of the human foot can all fall on the step is appropriate, the height value should be appropriate to ensure that the stairs have the appropriate slope.
3. Stair step height should not be greater than 210mm, and should not be less than 140mm, all levels of step height should be the same, 4> staircase step width, should be used 220,240,260,280,300,320 mm.
National building regulations are as follows:
Indoor staircase steps should be 150 × 300; outdoor stairs step width should be about 350, high width ratio should not be greater than 1: 2.5
Residential public staircase step width should not be less than 0.26M, step height should not be greater than 0.175M
Residential staircase width should not be less than 1.1M (6 and below the side of the railings can be 1.0M), clearance height of 2.2M
