Barricades around the hoistway entrance must be at least how many inches in height?

Barricades around the hoistway entrance are required to be a minimum height of 42 inches to ensure the safety of workers and prevent unauthorized access to the area. This height is designated based on industry safety standards which aim to create barriers that effectively prevent falls and protect personnel from potential hazards associated with the elevator installation and maintenance process. A 42-inch height strikes a balance between being tall enough to provide a safe enclosure while still allowing for visibility and access when necessary.