What is the minimum width of work space required in front of an electrical panelboard?

• A. 3 feet
• B. 4 feet
• C. 5 feet
• D. 6 feet

Answer: (D)

A clear, unobstructed work area in front of electrical equipment is needed so a person can safely reach, operate, and service the panel without crowding into walls or hitting the panel door with tools or arms. The six-foot width provides enough room to stand in front of the panel, open the door fully, maneuver testing equipment or breakers, and have room for a second person if needed. Narrower widths—three, four, or five feet—tend to be cramped, making it harder to work safely and to keep a comfortable buffer from live parts. Therefore, six feet is the practical minimum to ensure safe access and proper clearance during maintenance and troubleshooting.