ADA Accessibility Guideline 4.8.1 states that any part of an accessible route with a slope greater than 1:20 shall be considered a ramp and must comply. Running Slope is the slope in the direction of travel; Cross Slope is the slope perpendicular to the direction of travel.
Manufactured and protected under the following
United States Patent and Trademark Office patent numbers:
3171278, 3352153, 3391574, 3482442, and 3596508.