What are the minimum residential stairway requirements?

Requirements for residential stairways are as follows:

  • Minimum Width: The minimum width of stairways is 36 inches.
  • Rise and Run: The rise of steps and stairs shall not be less than 4 inches nor more than 7 3/4 inches. The greatest riser height within a flight of stairs shall not exceed the smallest by more than 3/8 inch. The run shall not be less than 11 inches. Stair treads shall be of uniform size and shape, except the largest tread run within any flight of stairs shall not exceed the smallest by more than 3/8 inch.
  • Headroom: Every stairway shall have a headroom clearance of not less than 6 feet 8 inches.

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1. What should I do if my permit has expired?
2. What should I do if my permit is going to expire and I cannot complete the project before it will expire?
3. What should I do if my first extension is going to expire and I cannot complete the project?
4. What should I do if my second extension is going to expire?
5. Do I need to apply for a Minor Use Permit to continue the use of the temporary dwelling when extending my building permit?
6. Do I need a permit for a storage shed or small building?
7. What are the minimum residential stairway requirements?
8. Is a permit required to replace a deck?
9. Does the County require engineering when replacing composition roof covering with tile?
10. Are there pressure testing requirements for Polyethylene, Iron, or Copper water distribution systems?
11. What are the driveway construction requirements?
12. How do I determine setback requirements?
13. How do you locate leach lines for septic systems?
14. What can be installed in an easement?
15. What are the minimum depth requirement for sewer, gas, water, and electrical lines/conduits?
16. Can water, sewer, gas, or electrical be placed in the same trench?
17. How do you abandon a septic system?
18. How do I check my plan review status?
19. How do I know what time my inspection will be?
20. What qualifies as an agricultural building?
21. Who can provide the requirements for a secondary residence/guest house/in-law quarters?
22. Where do I find the requirements for swimming pool fencing/barriers?
23. What are the plan checking turn-around (time to complete review) standards?
24. How do I schedule an inspection?
25. When can I talk to a Plan Checker or Building Inspector?