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Did a search... Found a lot of helpful information, but nothing that looked quite like what I'm working with here. Trying to take out this plastic junction box to install a ceiling fan... I'm assuming I would need to install a brace to do that. Trying to get this plastic box out and I'm running into issues. It has one screw in the middle, which is free. Box doesn't appear to be nailed, I can spin it around, but can't pull it through the ceiling... Any tips for getting this thing out? Trying to avoid going in the attic since this box is a pretty far crawl from where the attic entrance is...

The plastic "tab" on the left side of the picture would fit through the drywall, so there must be something above that's bigger and won't pull through?

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  • Wouldn’t you need attic access anyway to install the brace? – DoxyLover Apr 22 at 23:59
  • Are you certain that that box is not already fan-rated? Or is it simply not fan-rated enough for your fan? – ThreePhaseEel Apr 23 at 1:24
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That screw in the middle is attaching it to a steel bar that spans between your rafters. The ends of the bar will be nailed into the rafters so you will not be able to get that pout without damaging your ceiling. But the box itself should come off.

enter image description here

If you loosened it and the whole box spins now, you are kind of in a mess because you can't get behind it to hold the nut that is likely BEHIND the bar. Usually the bar is a U-shaped channel and the nut is inside of the U so that it can't spin, but if you can't back it all the way out (assuming you tried) then it's likely that someone installed it upside down before hanging the sheetrock, when they could tighten that nut by getting to the back side with a wrench. Now that it's loose you may not be able to loosen it the rest of the way OR tighten it back up.

First thing though, make sure you tried to take it all the way out, the screw may be over an inch long so maybe you just gave up too soon. If that doesn't work, you can TRY to put downward pressure on the box to try to get it to hold the nut in the back in place until the screw can back out. So to do that, screw something into the mounting holes on the side so that you can pull on it or hand something heavy from it.

Good luck!

  • You're a lifesaver! Looks like I'll have to suck it up and go in the attic if I go through with this project. Thanks so much! – trailflier Apr 23 at 1:13

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