The American Disabilities Act requires what type of ramp incline?

The American Disabilities Act (ADA) specifies that the maximum allowable slope for wheelchair ramps should be a ratio of 1:12. This means that for every inch of vertical rise, there should be at least 12 inches of ramp run. This gradient is designed to ensure that ramps are accessible and usable by individuals with mobility impairments, providing sufficient ease of use without excessive strain or risk of accidents.

This slope ratio is recognized as a standard across various contexts, including public buildings and spaces, to promote accessibility in compliance with federal regulations. A steeper incline would make it difficult for individuals to navigate the ramp safely, especially those who may require additional support or assistive devices. Therefore, the 1:12 ratio plays a crucial role in ensuring that ramps are appropriately designed to accommodate all users effectively.