An acceptable height for a handrail is:

• A. 35 inches (88.9 cm)
• B. 42 inches (106.7 cm)
• C. 31 inches (78.7 cm)
• D. 39 inches (99.1 cm)

Answer: (A)

Having a handrail at the right height is crucial for being able to grasp it securely and comfortably. The standard range for handrail height is about 34 to 38 inches above the finished stair surface (measured vertically from the nosing to the top of the grip). A height of 35 inches fits well within that range, balancing ease of use for most people and reliable control while using the handrail. Heights lower than this can be hard to reach or grasp securely, while heights well above the range (such as around 39 or 42 inches) can be difficult to grab firmly. So, 35 inches is the best choice.