Final answer:
The height of the stair handrail should be between 34 and 38 inches.
Step-by-step explanation:
The height of the stair handrail should be at least 34 inches high and no more than 38 inches high.
This requirement is specified in building codes, such as the International Building Code (IBC) and the Americans with Disabilities Act (ADA). The purpose of the handrail height requirement is to ensure safety and accessibility for people using the stairs.
For example, a shorter handrail may not provide enough support, while a taller handrail may be difficult for some individuals to grasp comfortably.