What is the maximum rate of rise for a Class B ramp?

The maximum rate of rise for a Class B ramp is defined as a slope with a ratio of 1 foot of rise for every 8 feet of run. This specification is important for ensuring accessibility while maintaining safety and usability for individuals who may be using the ramp, such as those in wheelchairs or with mobility challenges.

A slope that is too steep can pose significant difficulties for users, making it hard to ascend or descend while also increasing the risk of accidents. Therefore, the 1:8 slope ratio strikes a balance between providing a functional incline for accessibility and ensuring a manageable steepness that complies with safety standards and regulations.

Maintaining this maximum rate of rise helps ensure that structures remain compliant with codes that are designed to protect and facilitate safe access for all users, and it is especially relevant in the context of fire safety and evacuation considerations.