Question on proper box for ceiling fans

sas95June 30, 2011

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!

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Ron Natalie

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.

    Bookmark   July 1, 2011 at 9:13AM
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normel

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

    Bookmark   July 1, 2011 at 9:24AM
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randy427

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.

    Bookmark   July 1, 2011 at 9:24AM
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sas95

Thanks so much for the responses.

    Bookmark   July 1, 2011 at 9:53PM
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brickeyee

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.

    Bookmark   July 2, 2011 at 10:38AM
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