North Carolina Building Contractor License Practice Exam

What should be the height of handrails measured above the stair tread nosings or the surface of the ramp slope?

1. No less than 1 inch and no more than 3 inches

2. No less than 1 inch and no more than 4 inches

3. No less than 1 3/4 inches and no more than 4 inches

4. No less than 1 3/4 inches and no more than 3 1/2 inches

The correct answer is: No less than 1 3/4 inches and no more than 4 inches

Handrail height is a critical aspect of building safety standards, especially in the context of stairs and ramps. For handrails, the height is regulated to ensure that they provide adequate support and safety for users. The correct measurement for handrails is typically set at a minimum height of 1 3/4 inches and a maximum of 4 inches above the stair tread nosings or the surface of the ramp slope. This range is established to accommodate a variety of users, allowing for both comfort and safety. The minimum height of 1 3/4 inches ensures that the handrail is positioned high enough to be grasped easily by most individuals, while the maximum height of 4 inches prevents the handrail from being too high, which could make it difficult for users, particularly those with mobility challenges, to effectively use the support it provides. This specific height range aligns with code requirements and safety standards, fostering an environment that minimizes the risk of accidents and falls. In contrast, other options fall outside this accepted range, either being too low or too high, which can compromise the effectiveness of the handrail in providing support and safety. Thus, the height specified in the correct answer not only complies with regulatory standards but also promotes a safer experience for all