Exterior Stairways - 3 Stories or More
Exterior stairways that
are going to be used for buildings that are three stories or more need
to be constructed using fire retardant materials.
It's not uncommon to find these types of stairways constructed entirely from metal or concrete.
Remember that this building code applies to exterior stairs, but might not follow the same rules as a stairway that designated as a fire escape or exit.
Attention: Don't forget to check with your local building department to verify any building codes on this website. This information could be incorrect or outdated. Building codes are updated regularly and to some building departments have different interpretations for certain building codes.
Exterior Stairways - 2 Stories or Less