Permitted handrail / barrier height **range (cm) at stairs, per the source key: 86.5–96.5 cm (top of nosing/riser reference per sheet).
Choices
- (A) 70–80 cm
- (B) 75–85 cm
- (C) 80–90 cm
- (D) 86.5–96.5 cm
Correct answer: (D)
86.5–96.5 cm
Explanation
Key: (D).