Length
Most businesses will need to meet ADA standards for their ramps. ADA requires a 1:12 ratio, which works out to 1 foot of ramp for each inch of rise. For example, a 20 inch rise will require a 20 foot ramp. Additional, ADA limits the longest single span of ramp, prior to a rest or turn platform to 30 feet. Ramps can be as long as needed, but no single run of ramp can exceed 30 feet.
Residential Applications usually will not be required to meet ADA standards (ADA is a commercial code). For Residential use, it is usually recommended not to exceed a 2:12 ratio, which work out to 1 foot of ramp for each 2 inches in rise. For example, a 20 inch rise should apply a 10 foot or longer ramp. The longer the ramp, the more gentle the slope should be, seeing as ramps are focused on maximum ease when travelling.
Read more about this topic: Wheelchair Ramp
Famous quotes containing the word length:
“Punishment followed on a grand scale. For ten days, an unconscionable length of time, my father blessed the palms of his child’s outstretched, four-year-old hands with a sharp switch. Seven strokes a day on each hand; that makes one hundred forty strokes and then some. This put an end to the child’s innocence.”
—Christoph Meckel (20th century)
“All expression of truth does at length take this deep ethical form.”
—Henry David Thoreau (1817–1862)
“At length upon the lone Chorasmian shore
He paused, a wide and melancholy waste
Of putrid marshes.”
—Percy Bysshe Shelley (1792–1822)