Statutes, codes, and regulations
Code of Massachusetts Regulations
Department 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDSChapter 10 - Means of Egress
Section 1009 - STAIRWAYS
Subsection 1009.8 - Curved stairways

Subsection 1009.8 - Curved stairways

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Current through Register 1520, April 26, 2024
Subsection 1009.8 - Curved stairways

Curved stairways with winder treads shall have treads and risers in accordance with Section 1009.4 and the smallest radius shall not be less than twice the required width of the stairway.

Exception: The radius restriction shall not apply to curved stairways for occupancies in Group R-3 and within individual dwelling units in occupancies in Group R-2.