The Best How To Install Electrical Box For Ceiling Light References. Web to figure the minimum box size required by the national electrical code, add: Web by cecilia harsch a ceiling fan requires a sturdier electrical box to support it.
Wearing thick protective gloves, reach up and push the insulation out of the way. Inspect your fixture for a hook or lip. Should the box be attached to a hanger bar that is connected to two ceiling joists, unscrew the ceiling box fastener located in the center of the electrical box to remove the box and using a pair tin snips, cut.
