Code of Massachusetts Regulations
521 CMR - Architectural Access Board
Title 521 CMR 29 - FLOOR SURFACES
Section 29.4 - GRATINGS
Universal Citation: 521 CMR 29 MA Code of Regs 29.4
Current through Register 1531, September 27, 2024
If gratings are located in walking surfaces, then they shall have spaces no greater than 1/2 inch (1/2" = 13mm) wide in one direction. If gratings have elongated openings, then they shall be placed so that the long dimension is perpendicular to the dominant direction of travel. See Fig. 29b.
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