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What is the minimum height required for a handrail on a ramp in a commercial building?

  1. 750 mm

  2. 850 mm

  3. 950 mm

  4. 1050 mm

The correct answer is: 950 mm

The minimum height required for a handrail on a ramp in a commercial building is 950 mm. This is because building codes specify that handrails on ramps must be at least 34 inches (864 mm) and no more than 38 inches (965 mm) from the ground. Option A and B are below the minimum requirement, while option D is above the maximum height allowed. Therefore, option C is the correct answer. Additionally, the height of a handrail should be consistent throughout the entire ramp, so it cannot start at 850 mm and end at 1050 mm.