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:
“At length I heard a ragged noise and mirth
Of thieves and murderers: there I him espied
Who straight, Your suit is granted,said, and died.”
—George Herbert (1593–1633)
“Unless a group of workers know their work is under surveillance, that they are being rated as fairly as human beings, with the fallibility that goes with human judgment, can rate them, and that at least an attempt is made to measure their worth to an organization in relative terms, they are likely to sink back on length of service as the sole reason for retention and promotion.”
—Mary Barnett Gilson (1877–?)
“Baltimore lay very near the immense protein factory of Chesapeake Bay, and out of the bay it ate divinely. I well recall the time when prime hard crabs of the channel species, blue in color, at least eight inches in length along the shell, and with snow-white meat almost as firm as soap, were hawked in Hollins Street of Summer mornings at ten cents a dozen.”
—H.L. (Henry Lewis)