Code of Massachusetts Regulations
521 CMR - Architectural Access Board
Title 521 CMR 24 - RAMPS
Section 24.2 - SLOPE AND RISE
Universal Citation: 521 CMR 24 MA Code of Regs 24.2
Current through Register 1531, September 27, 2024
Ramps shall have the least possible slope.
24.2.1 The least possible slope should be used for any ramp. The maximum slope of a ramp shall be 1:12 (8.3%). (There is no tolerance allowed on slope, Refer to 521 CMR 2.4.4d)
24.2.2 The maximum rise for any run shall be 30 inches (30" = 762mm). See Fig. 24a.
Exceptions: A slope between 1:10 (10%) and 1:12 (8.3%) is allowed for a single rise of a maximum three inches (3" = 76mm).
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