Standard junction boxes cant support the full weight of a ceiling fan. Without extra support, your ceiling fan will probably fall out and rip right through the drywall.

Rated for a 50 lb. light fixture and 35 lb. ceiling fan, ABB’s Carlon® Blue™ fan-rated ceiling boxes meet the latest industry requirements for ceiling fan support with vibration-resistant ...

Engineered to meet the latest industry standards, the new Carlon® Blue™ fan-rated ceiling boxes from ABB Installation Products help protect and power residential and light commercial installations ABB ...