Question

On stairways the greatest riser height within any flight of stairs shall not exceed the smallest by more than ___ inch.

1) 1
2) 2
3) 3
4) 4

Answer 1

The greatest riser height within any flight of stairs should not exceed the smallest by more than 1/2 inch, which maintains uniformity and safety on stairways.The correct answer is 3.

Step-by-step explanation:

The question relates to the construction standards for stairways, specifically the allowable variation in riser heights within a flight of stairs. According to building codes, consistency in the riser height is crucial for safety to prevent tripping and falls. The International Building Code (IBC) specifies that the greatest riser height within any flight of stairs must not exceed the smallest by more than ½ inch. This precise measurement ensures a uniform stairway that is safer for all users.

The riser height refers to the vertical distance between consecutive steps on a staircase. In a flight of stairs, the greatest riser height should not exceed the smallest by more than 3 inches (7.62 cm) to ensure that the staircase is safe and comfortable for users.

This is known as the "staircase code" or "rise and run" rule, which is typically enforced by building codes and standards. The exact value of the maximum difference in riser height may vary depending on the specific code or standard being followed.The correct answer is 3.