Thresholds at doorways for sliding doors must be a maximum of how many inches in height above the finished floor or landing?

The correct maximum height for thresholds at doorways for sliding doors is 3/4 inch above the finished floor or landing. This requirement is established to ensure accessibility and to minimize tripping hazards for individuals using the doorway. A threshold that exceeds this height can pose a barrier, especially for people with mobility challenges, and does not align with standards set by universal design principles and building codes aimed at providing safe and accessible environments.

Having a threshold of 3/4 inch allows for effective water management while also facilitating ease of access. This measurement is critical for ensuring that doorways remain functional and safe for all users, including those using wheelchairs or walkers, as well as individuals with other mobility considerations.

It's important to maintain thresholds within this specified height to align with best practices in building codes designed for safety and accessibility.