R318.7.11.2 Bulkhead enclosure stairways
Stairways serving bulkhead enclosures, not part of the required building [...]
R318.7.11.1 Spiral stairways
The clear width at and below the handrails at spiral [...]
R318.7.11 Special stairways
Spiral stairways and bulkhead enclosure stairways shall comply with the [...]
