What is the appropriate height of the guardrail

For users and production and installation units, the guardrail is 1.2m high, which can meet more than 90% of the safety protection occasions. The thickness criteria for the guardrail height are used for each scenario. Here are the railing height standards used in five common situations.

 

1. Industrial buildings:

If the height from the high place to the ground is less than 20m, and the height of the protective railing shall not be less than 1050mm; If this height is greater than or equal to 20m, the height of protective railings shall not be less than 1200mm.

2. Civil buildings:

If the height from the high place to the ground is less than 24 meters, the height of protective railings shall not be less than 1050 mm;

If the height is greater than or equal to 24 meters, the height of protective railings shall not be less than 1100 mm;

The height of railings on accessible roofs and open atriums of public buildings shall not be less than 1200mm;

The height of protective railings in nurseries and kindergartens shall not be less than 1300mm.

3. Indoor stairs and escalator railings:

The height of protective railings at indoor stairs and escalator sections shall not be less than 900mm;

 

4. Protective railings for windows or glass curtain walls:

The protective railings (or windowsills) of the overhead external windows of public buildings shall not be less than 800mm; The protective railings (or windowsills) of the outdoor windows facing the air in residential buildings shall not be less than 900mm; When the height of the windowsill is less than 450mm, the height of the guardrail shall not be less than 900mm from the windowsill surface.

5. Protective railings for construction:

The height of protective railings shall not be less than 1200mm.

 

1050mm is the reference height of the railing.

 

The protection height of the railing is mainly determined according to the stability of the center of gravity of the human body and the psychological requirements. The factor considered is safety, followed by aesthetics and economical application.

 

From the perspective of safety, the protective height of the railing should exceed the height of the center of gravity of the human body, to avoid falling accidents due to the outward movement of the center of gravity when people close to the railing.

For civil buildings, the protective height of the guardrail with a free height of 24m and below shall not be less than 1.05m, and the protective height of the guardrail with a free height of more than 24m shall be increased to 1.10m. The public places of schools, businesses, hospitals, hotels, transportation, and other buildings near the atrium are more dangerous, and the height of protective railings is further increased to 1.20m. For nurseries, kindergartens take into account the adults hold Infants and toddlers standing when the human body's center of gravity increases, as well as infants and toddlers' poor security awareness, ease to move, ease to climb, the height of its protective railing increased to 1.30m.

 

For industrial buildings, the protective height of the railings at a height of 20m and below is not less than 1.05m, and the height of the protective railings at a height above 20m is increased to 1.20m.

For windows or glass curtain walls, the height of the guardrail is reduced to 0.90m, which is determined according to the stability of the center of gravity of the human body and psychological requirements. First of all, standing in front of the window does not have the obvious dizziness of standing in front of the balcony, and secondly, the existence of the window limits the range of the human body's outward tilt.

1050mm is the reference height of the railing. According to the purpose, place, and protection object of the protective railing, the height of the railing will increase or decrease accordingly, and the specific size can be implemented following relevant specifications.