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Old 10-29-2016, 07:44 PM   #1
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Help removing junction box


I am trying to replace an existing light fixture with recessed lighting and am having trouble removing this octagonal metal junction box (see photo). I have already removed a screw and the locknut that was holding the wires in place. It moves a bit when I pull it, but I think there is also something metal on 2 sides that is currently holding it in place? I'm not sure if this is part of the junction box or part of the metal studs in the house??

I want to avoid cutting a hole in the ceiling as the recessed lighting would fit well in the existing hole. There is no attic access (the junction box is on the 2nd floor of a 3 storey townhouse). Any advice on how to remove the box?

Thank you in advance.
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Old 10-29-2016, 07:50 PM   #2
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Re: Help removing junction box


Apologies for the double post - forgot the photo: http://imgur.com/e7hCzSN
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Old 10-29-2016, 08:03 PM   #3
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Re: Help removing junction box


Hard for me to tell, but it looks like 2 nails in the center of the box.
Rafter above the box?
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Old 10-29-2016, 08:04 PM   #4
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Re: Help removing junction box


Trying to put a recessing light in place of an existing octagon box is a risky thing to try. Success rate isn't too good. Many times, we will cut short pieces of steel stud, hat track, or C-channel to brace an octagon box in the ceiling for the future surface light.
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Old 10-29-2016, 10:43 PM   #5
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Re: Help removing junction box


Or a side bracket.
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Old 10-30-2016, 06:48 AM   #6
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Re: Help removing junction box


The box probably looks like this with nails or screws in the bracket. Slide a jab saw or sawsall between the rafter and the bracket to cut off the fasteners. Help removing junction box-img_0268.jpg
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Old 10-30-2016, 06:56 AM   #7
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Re: Help removing junction box


Or push the box into the opening to loosen the fastenters and use a pry bar between the joist and the bracket.
Help removing junction box-img_0269.jpg
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Old 10-30-2016, 08:38 AM   #8
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Re: Help removing junction box


A sawzall with a flexible metal blade will do the trick. Try to run it rubbing against the joist so you are cutting the nails or screws holding the box to the joist, rather than cutting the metal wings of the box. The sawzall will cut either, but the fasteners are yhe easiest to cut.

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Old 10-30-2016, 01:25 PM   #9
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Re: Help removing junction box


I see two nails also. Looks like the box is nailed to the rafter or 2x4 installed to support the box.
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Old 10-30-2016, 02:31 PM   #10
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Re: Help removing junction box


If your referring to the "nails" just north and south (figuratively speaking) of the center 1/2 KO.........I think those are factory punchouts in the box that were not removed. Whereas, the other remaining four (4) have been removed.
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