What is the maximum stair riser height allowed in residential buildings?

• A. 6 inches
• B. 7 inches
• C. 7.75 inches
• D. 8 inches

Answer: (C)

The maximum stair riser height allowed in residential buildings is 7.75 inches. This measurement is important for ensuring safety and accessibility in residential construction. The uniformity of riser heights helps prevent tripping hazards and makes navigating staircases easier for all individuals, including those with mobility challenges.

Building codes, including those in North Carolina, define this maximum height to establish a standard that fosters safe movement within homes. By allowing a maximum riser height of 7.75 inches, the code aims to balance safety with the practicalities of construction and design, providing enough flexibility for builders while maintaining strict guidelines for safety.