General Contractor Practice Exam

Which requirement must be met when installing stairs that include winders?

1. 5 inches minimum at the inner angle

2. 6 inches minimum on the inside angle of winder

3. 8 inches minimum on the outer edge

4. 10 inches minimum for the landing

The correct answer is: 6 inches minimum on the inside angle of winder

The requirement that must be met when installing stairs that include winders is a minimum of 6 inches on the inside angle of the winder. This specification is critical for ensuring that the stairs are safe and functional, as it helps to provide sufficient foot space for users when stepping on the narrower portion of the winder. Winder stairs are designed to change direction in a stairway, and the inner edge of the winder can present a risk if it is too narrow, potentially causing a trip hazard. The 6 inches minimum requirement helps to mitigate this risk by allowing enough space for a comfortable foot placement. This dimension is typically regulated in building codes to promote safety and accessibility in stair design. Other options mention dimensions that do not conform to the established safety standards for winders. Ensuring that the winder meets this 6-inch minimum helps achieve a staircase that aligns with construction and safety practices.