4. A wheelchair ramp is needed at the entrance to a building.
There is only 10 feet of space available for the ramp. How long
should the ramp be?
Answers
Answer:
If you plan to add a wheelchair ramp to your entryway, you may be wondering how long it needs to be. Some people might think a shorter ramp is better because it takes up less space and may cost less money. However, if you add a ramp that is too short for the rise of the entryway being ramped, it can be both hard to use and a safety hazard. This often results in a very steep ramp that may resemble a ski jump!
The Americans with Disabilities Act (ADA) requires a 1:12 slope ratio for commercial ramps (ramps used in public spaces). This means that for every 1 inch of rise, 12 inches of ramp are required. For example, if an entryway is 36 inches high, you will need a ramp that is at least 36 feet long. The 1:12 slope ratio reduces the steepness of a ramp to 5 degrees of incline and makes it both easier and safer to traverse.
Step-by-step explanation:
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