Best Seller | Legrand - Wiremold Legrand V5783AF Solid Base Round Fixture Fan Box Cable Raceway Ivory Solid Base Round Fan Box Cover accecpts fan brackts with mounting centers of 3 3/16 . Base has 6 nounting holes and 4 1/2 trade size knock outs #10 mounting studs provided. Raited for fans and fixtures up to 50 lbs. more | | $19.79 FREE shipping go to store |