According to ASME code, what is the maximum allowable rise between treads?

The maximum allowable rise between treads, as specified by ASME code, is 8 1/2 inches. This standard is in place to ensure safety and accessibility on escalators. A limited rise helps to create a more comfortable experience for users, minimizing the risk of tripping or losing balance while entering or exiting the escalator. By maintaining a maximum rise of 8 1/2 inches between the treads, the design accounts for the average stride of a person, enabling a smooth transition and encouraging safe usage. Understanding this measurement is essential for compliance with safety regulations during escalator installation and maintenance procedures.