How far does a guard rail extend from equipment installed within 10 feet of a roof edge?

The correct answer is that a guard rail must extend 30 inches from equipment installed within 10 feet of a roof edge. This requirement is part of safety regulations that aim to prevent falls from rooftop equipment and ensure a secure working environment for personnel who may be on or near the edges of a roof.

Guard rails are critical safety features designed to provide a physical barrier at elevated locations, especially where there is a risk of falling off the edge. The specified extension distance is derived from industry standards that take into account various factors, including the average reach of a person, ensuring that any worker near the edge of a roof has a sufficient protective barrier in place.

The 30-inch requirement helps to safeguard personnel working close to potentially hazardous edges, promoting compliance with Occupational Safety and Health Administration (OSHA) guidelines. This distance is established to balance the need for safety without being overly restrictive on the use of roof space.