1. The height of barrier free single-layer handrail shall be 850mm-900mm, the height of upper handrail of barrier free double-layer handrail shall be 850mm-900mm, and the height of lower handrail shall be 650mm-700mm;
2. The barrier free handrail shall be continuous, and the starting point and end point of barrier free handrail against the wall shall extend horizontally for not less than 300 mm;
3. The end of the barrier free handrail shall turn inward to the wall or extend downward no less than 100mm;
4. The distance between the inside of the barrier free handrail and the wall shall not be less than 40mm;
5. The barrier free handrail is round and easy to grasp, and the diameter of 35mm is the best.
The installation precautions and specifications for barrier free handrails are mainly divided into the following two situations
1、 Code for installation of barrier free handrails in corridor
1. Handrails with height of 0.85m shall be set on both sides of ramps, steps and stairs; when two layers of handrails are set, the height of handrails at the lower layer shall be 0.65M;
2. The distance between the inside of handrail and the wall shall be 40-50mm;
3. The handrail shall be firmly installed and easy to grasp.
2、 Code for installation of barrier free handrail, bathroom handrail and safety grab bar in toilets and public toilets
1. safety grab bar shall be set 50mm away from both sides and front edge of wash basin;
2. Safety grab bar with width of 0.60-0.70m and height of 1.20m shall be set on both sides and above the urinal;
3. The height of the pedestal pan is 0.45M, the height of the horizontal grab bar is 0.70M on both sides, and the height of the vertical grab bar is 1.40M on one side of the wall;
4. The diameter of barrier free handrail shall be 30-40mm;
5. The inside of the barrier free handrail shall be 40mm away from the wall;
6. The grab bar shall be firmly installed.
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