When we wire new homes for some of the lights we use metal boxes and for other lights we use nail-in plastic ones. Why do we use different boxes?
The plastic ones are probably for the lower weight lights, while the metal ones are for heavier fan/chandeller type lights.
Yes I believe 25lbs for plasticYes, I figured fan rated had something to do with it. What about weight - is it 25lbs or heavier that needs a metal box?
I've done the same thing.. and I sleep well at night. If I can pull on and almost hang from a box and it doesn't move, I have no concern about it holding up a ceiling fan.on old metal boxes i have drilled and tapped the box to make #10s go all the way through for fans. whats the difference between that and anew box of the same thing when they are well anchored above? just that some engineer didnt come up with it!:whistling2: