Will this box hold ceiling fan?


  #1  
Old 07-23-20, 08:21 AM
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Will this box hold ceiling fan?

I am installing a ceiling fan and am not sure if this box will hold it.
<img src="https://cimg6.ibsrv.net/gimg/www.doityourselft.com-vbulletin/2000x1504/acd5b8cc_1eb6_4f6b_bdeb_9cdc5dd63b4a_7c10a031dbea020cee6fa47cce50af288e14f71b.jpeg" width="1128" height="1504"/>
 

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07-24-20, 06:25 PM
Gen
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I'm speaking from experience doug... been there done it at least 2 dozen times without going in the attic, or creating any additional holes.

Here's one example doug....(you're welcome!) https://www.youtube.com/watch?v=DKWeyydoYTI
 

Last edited by Gen; 07-24-20 at 07:29 PM.
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Old 07-23-20, 08:35 AM
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That looks like one of those plastic/phenolic boxes, no idea but fans require a fan rated box as well as a secure mounting,

Id be looking to upgrade!
 
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Old 07-23-20, 08:37 AM
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If it's not fan rated, the short answer is NO!

It's just not how well the box is attached to the joist, but what screws are used to hold the weight of the fan to the box. Fan rated boxes usually use a 10-32 or at least an 8-32 screw vs a 6-32 for a light.
 
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Old 07-23-20, 08:42 AM
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Maybe I should have asked is this box fan rated. I am aware that if it is not, then it wonít hold a fan. I couldnít find any specific markings to identify. The bigger screws do fit into the threads.
I am just being cautious.
 
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Old 07-23-20, 08:47 AM
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I'm not sure but I think all fan rated boxes should be marked as such.
Our experts will chime in shortly.
Do you know how well the box is attached to the joist?
 
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Old 07-23-20, 08:57 AM
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I only see two attachments in the top. Not attachments on the sides. Feels a tad loose to me. It does have 4 threads. I put a screw in 1 and that helped to tighten it up.
 
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Old 07-23-20, 09:16 AM
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How big of a fan do you plan on installing? If it's one of the smaller sizes you might be able to get away with it.
 
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Old 07-23-20, 10:26 AM
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It’s a big one. The room is 40x30.
 
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Old 07-23-20, 10:29 AM
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Hi, thatís not a fan rated box, what is above that box, is there an attic?
Geo
 
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Old 07-23-20, 12:14 PM
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No. Don't use it.__________________________________
 
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Old 07-23-20, 12:25 PM
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For ceiling fans the question is not the box, but the strength of bracket attaching it to beams. There are special assemblies for ceiling fans and heavy chandeliers. Here is typical one:

https://www.homedepot.com/p/Commerci...-205383178-_-N
 
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Old 07-23-20, 12:37 PM
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An attic is above. Iíll go up there and install the bracket between the joists and then a fan rated box.

thanks
 
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Old 07-24-20, 05:04 AM
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You don't necessarily need to go in the attic to get the old box out, and a fan box installed.
 
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Old 07-24-20, 07:13 AM
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Sure "Gen", just cut big hole in ceiling, remove old box and bracket, put in new fan box assembly, then repair ceiling.

Much easier to just to in attic, remove old box and install new assembly.

Amanda K. is doing it the smart, cheaper, easy way
 

Last edited by doughess; 07-24-20 at 07:53 AM.
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Old 07-24-20, 03:22 PM
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I agree that does not look like a box suitable for a fan. The fact it’s loose also tells me it’s probably not suitable for a fan and even if it is, you’ll probably want to replace it.
 
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Old 07-24-20, 06:25 PM
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I'm speaking from experience doug... been there done it at least 2 dozen times without going in the attic, or creating any additional holes.

Here's one example doug....(you're welcome!) https://www.youtube.com/watch?v=DKWeyydoYTI
 

Last edited by Gen; 07-24-20 at 07:29 PM.
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Old 07-25-20, 03:31 AM
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Gen is correct. In many cases installing a fan rated box does not necessarily mean going into crawl space or cutting a large hole on ceiling. However, if access is available going into the attic or crawl space will be easer.
 
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Old 07-25-20, 10:06 AM
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A little late to the party.

You have a 4" round phenolic nail on box there. Most likely from Carlon.
The metal bracket is riveted to the box.
<img src="https://cimg3.ibsrv.net/gimg/www.doityourselft.com-vbulletin/252x326/phnolic_box_8d351a53ff0dd0422d34a8b7ab92e888d65d9e5e.jpg" width="252" height="326"/>

The box system with the expandable bar will probably not work there because that hole is against a ceiling joist. You can use a side mount smart box or my personal choice is to install a 2"x6" piece of wood between the joists and screw into that.
<img src="https://cimg9.ibsrv.net/gimg/www.doityourselft.com-vbulletin/809x190/fb_d4418e6db0e2ca8834858118883a5e3060587897.jpg" width="809" height="190"/>
 
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Old 07-25-20, 01:08 PM
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I use this example, my favorite, for a side mount box if the hole is against a joist. This can't be mounted from the attic. And sometimes there is no attic.

https://www.amazon.com/Madison-Elect.../dp/B07QR54LZ7
 
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