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Wheelchair ramp length
Ramp run length and landings from total rise.
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How this works
ADA standards use a maximum slope of 1:12 (1 in of rise per 12 in of run), a maximum rise of 30 in per run, and landings at least 60 in long. Gentler 1:16 or 1:20 slopes are easier to use independently.
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Related guide
Aging in place & accessibility guide
Compare practical home changes that improve safer movement, bathing, entry, and daily routines as household needs change.