What is the maximum slope allowed for a ramp?

The maximum slope allowed for a ramp is crucial for ensuring accessibility, particularly for individuals with disabilities. A slope of 1 in 12 means that for every 12 units of horizontal distance, there is a rise of 1 unit. This ratio is widely recognized as a standard that provides a balance between usability and safety.

This slope is the most gentle of the options provided, making it easier for individuals using wheelchairs or those with mobility challenges to navigate the ramp. A steeper slope can pose risks, as it could lead to difficulty in climbing the ramp or an increased chance of falling when descending. The 1 in 12 ratio is specified in many accessibility guidelines, including the ADA (Americans with Disabilities Act), to ensure ramps are functional and safe for everyone.

In contrast, the other slope options, which are steeper (like 1 in 10, 1 in 14, and 1 in 16), do not meet the recommended standards for accessibility and could result in unsafe conditions for users with limited mobility.