780 CMR, 1009.7

Current through Register 1533, October 25, 2024

Subsection 1009.7 - Vertical rise

A flight of stairs shall not have a vertical rise greater than 12 feet (3658 mm) between floor levels or landings.

Exceptions:

1.Aislestairs complying with Section 1028.

2.Alternating tread devices used as a means of egress shall not have a rise greater than 20 feet (6096 mm) between floor levels or landings.

780 CMR, 1009.7