Reinforced electrical box for a heavy chandelier

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Old 03-23-06, 07:23 PM
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Question Reinforced electrical box for a heavy chandelier

I purchased a chandelier (58lb) that states it "requires a reinforced electrical box" for mounting. Therefore, I need to replace this existing electrical box with a reinforced box.

The current box is mounted right to the ceiling joist and is one of those 1/2" deep (drywall thickness) boxes. Since I don't want to move the box location (cause it's in the exact center of the room), I can't use one of those heavy duty ceiling fan boxes that bridges between two joists. What kind of 'reinforced electrical box' should I use for mounting in this situation? Can you recommend a box to use and where can I buy one?
 
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Old 03-23-06, 07:31 PM
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Originally Posted by ylekyot
I purchased a chandelier (58lb) that states it "requires a reinforced electrical box" for mounting. Therefore, I need to replace this existing electrical box with a reinforced box.

The current box is mounted right to the ceiling joist and is one of those 1/2" deep (drywall thickness) boxes. Since I don't want to move the box location (cause it's in the exact center of the room), I can't use one of those heavy duty ceiling fan boxes that bridges between two joists. What kind of 'reinforced electrical box' should I use for mounting in this situation? Can you recommend a box to use and where can I buy one?
For 58lbs I would not trust a plastic ceiling fan box. I'd remove the current box and if you have access from above I would run a brace from ceiling joist to ceiling joist nail it in place with 3 18d nails on each side. Then screw a metal box onto this brace using lag bolts. Your fixture will not be going anywhere.

Remeber if you use a plastic box all 58lbs is going to be held by the two screws holding the chain assembly to the plastic. Atleast on a metal box you have bolts threaded into the holes holding this.

-Roy
 
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Old 03-23-06, 07:31 PM
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There are fan rated pancake type boxes that are 1/2" deep. There are also fan rated boxes that side over the joists.

http://www.aifittings.com/n_1.htm is one type.
 
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Old 03-23-06, 07:42 PM
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what the PCBOSS did give you a good link and i used this type of box all the time and it really hold alot of weight most fan boxes you reallyhave to look at the rating some fan box only can handle light as 35 lbs and some can hold much as 100 lbs so you have to look at the label for correct weight rating there

the other quick point with some chandeler lumiaires do have " J " hook on it if so you have to put a hevey eye bolt or screw and secure it very well with it.

Merci , Marc
 
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