There must be 3 feet of clearance in front of your electrical panels, and the door must be able to open at least 90 degrees. Move any boxes or objects that obstruct your view. It is not a single, fixed dimension but varies based on voltage and the surrounding environment. Specifically Section E3405 outlines proper panel location and minimum clearances that are to be maintained in residential structures. Working space: The front clearance, side clearance, and height clearance requirements for electrical equipment that provide a safe area for maintenance, inspections, and other work. Expect to pay $1,500 to $2,000 to move an electrical panel, with replacement adding another $1,150 if your existing box needs upgrading. Access clearance requirements refer to the.