2019. 6. 27. - Learn about the many common types of wall and ceiling electrical boxes for switches, outlets, light fixtures, ceiling fans, and junction boxes. Shop our selection of Ceiling box, Boxes & Brackets in the Electrical Department at The Home Depot. Installing a light fixture or outlet in the ceiling requires an electrical junction box to hold the wire connections and the fixture or device. Installing such a box in a . 2018. 12. 28. - The National Electrical Code requires protective boxes for every electrical connection in a residential or commercial building, and those boxes . Using a junction box whenever you install an electrical device like a ceiling fan, or light, will help to connect wires and mount the base of the item. Buy products related to ceiling fan electrical box products and see what . I'd recommend this to anyone, the large box is nice, it has more room for wiring. (31).