To build a ramp for a wheelchair:
Keep at least a width of 91.5 cm (36 inches).
Measure the vertical length you want to cover. Consider the slope ratio requirement your local regulations demand. For example, ADA requires a minimum slope of 1:20 and a maximum of 1:12.
Ensure the landing area is at least 1.525 meters (60 inches) long.
For further building construction, check a dedicated wheelchair ramp slope calculator.
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