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Question on proper box for ceiling fans

Posted by sas95 (My Page) on
Thu, Jun 30, 11 at 21:12

We are planning to install ceiling fans in rooms that currently have overhead light fixtures. How can we tell whether the existing boxes are appropriate for ceiling fans? Any input would be greatly appreciated!


Follow-Up Postings:

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RE: Question on proper box for ceiling fans

You probably have to assume they are not. A ceiling fan box has to have sufficient structural connection to hold the weight. Unless someone was preplanning a fan installation, chances are that it is not.


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RE: Question on proper box for ceiling fans

The box should be a metal one and securely mounted to the ceiling structure through its back, not a side bracket.
There are some plastic boxes that are made for lighter weight fans, but I would look for a metal box if I weren't installing it myself.


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RE: Question on proper box for ceiling fans

Boxes "suitable for fan support" will have that statement stamped inside the box.


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RE: Question on proper box for ceiling fans

Thanks so much for the responses.


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RE: Question on proper box for ceiling fans

There are fan brace boxes available that can be installed through the existing hole in the ceiling.

They unscrew to anchor themselves into the joists.


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