DDimensions.
Landscape · Grading

Site Accessible Route Slope

Maximum running slope for an accessible pedestrian route that is not classified as a ramp.

1:20 max

Description

Walkways with a running slope steeper than 1:20 are classified and regulated as ramps (with handrails and landings); routes at or below this slope can remain unramped.

Sources

  • ADA Standards for Accessible Design

Tags

Values

Maximum unramped running slopeMaximum
1:20 (5%)1:20 (5%)
Maximum cross slopeMaximum
1:48 (2%)1:48 (2%)

Related dimensions

1:12 (8.3%)
1:12 (8.3%)

Ramp Running Slope

Accessibility

Maximum running slope for an accessible ramp, expressed as a rise-to-run ratio.

rampslopeuniversal design