What is the minimum height of curbs at both sides of an accessibility ramp?

The minimum height of curbs at both sides of an accessibility ramp is set at 100 mm. This specification is crucial for ensuring the safety and effectiveness of the ramp for individuals with disabilities.

Curbs serve as a protective barrier, helping to prevent wheelchair users from rolling off the sides of the ramp, particularly when navigating turns or when the person on the ramp loses their balance. A height of 100 mm provides a sufficient barrier without exceeding what should be easily navigable for those using the ramp.

Standards and regulations, such as those outlined by the Americans with Disabilities Act (ADA), emphasize the importance of this dimension to enhance safety and usability. It's important to have curbs that are both high enough to deter accidents yet low enough to not impede the movement of wheelchair users. This balance is critical for creating compliant and effective accessible pathways.