Stairs have requirements for safety

Home Inspector with Home Inspector/Structural Engineer/Mold Assessor

All stairways in a home need to these criteria to be acceptable:

1. Headroom must be minimum 6' 8".

2. No flight of stairs may exceed 12 feet in vertical rise.

3. The width of a stairway needs to be at least 36 inches.

4. The maximum height for a riser is 7 3/4 inch, and the minimum tread depth allowed is 9 inches.

5. Handrails must be present if four or more steps.

6. For stairways with six or more steps, a light must be provided with a switch at the top and bottom.

7. A landing must be provided at top and bottom or at least 36 inches in the direction of travel.


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