Old work two gang junction box options?

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Old 08-26-14, 06:00 PM
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Old work two gang junction box options?

I am in a bit of a pickle.

I have a room with wood panel walls.

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I need to add a new wall switch - 2 gang, and so I carefully measured and drew out the square I need to cut. I then used a multitool to plunge cut the square, through the 3/16" wood panel and the sheetrock behind it. No issue.

After I removed the square piece from the wall, I noticed that the square hole I cut, the top edge of that hole is exactly aligned with the bottom edge of the 2x4 middle plate inside the wall cavity.

I had planned on just using an old work plastic 2 gang box, those with two "wings" you secure against the wall board. In my case I can't because one of those wings would hit against the middle plate on the top edge.

I can't just cut another hole slightly lower either because this is not sheetrock, there is no patching this wood panel. I have to use this hole cut where it is.

I then thought may be I can use a metal box, and secure the box to the bottom of the middle plate with screws. However, since wall board consists of a layer of 3/4" sheetrock then a 3/16" panel, the wood plate is almost an inch recessed and I have trouble driving a nail or screw at an angle recessed that far in.

Any ideas?

Do they make old work box where the wings are on the left & right edges instead of bottom left and top right? That would solve the problem.
 

Last edited by MiamiCuse; 08-26-14 at 06:21 PM.
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Old 08-26-14, 06:06 PM
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You can use the metal box along with metal Madison straps. The "legs" will be long enough for both the drywall and wood. You can just bend the top over where it will hit the 2x, or bend the "body" flat to the wood, but you will have to install the straps before inserting the box.

Google "installing madison straps" and you should get some hits.
 
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Old 08-26-14, 06:14 PM
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How about one of these? types you should be able to find at least the metal one in two gang.

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Are you saying there is a horizontal fire stop? Not sure a Madison clip will work.
 
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Old 08-26-14, 06:43 PM
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He can't use cut-ins if he cut the box for plastic old work. The cut-ins will fall in the wall.

You could use the bottom wing and a screw up thru the box into the cat.
You could also use flat head screws that just fit in the front mounting holes since you're mounting in wood.

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Old 08-26-14, 06:56 PM
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If I had a wood surface like that I too suggest flat head wood screws through the holes like PJ shows above.
 
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Old 08-27-14, 08:08 AM
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The thing is the wood panel layer in front of the sheet rock is very thin, it's only about 3/16" almost like a thick veneer. Since it's so close to the cut edge and thin, i am not sure it has any "biting" power on a screw.
 
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Old 08-27-14, 08:11 AM
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Then run a screw or two up thru the top inside of the box into your 2x lumber.
You could also use madison bars with the top part that goes in the wall bent over. The bars would have to be in the wall before putting the box in.
 
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Old 08-27-14, 01:58 PM
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Or, use the multi tool to cut upward into the 2x lumber to create a cavity large and long enough for the old work flip up to move at least half its travel.
 
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Old 08-27-14, 02:33 PM
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If the hole is cut properly the box should be held securely already. The screws just stop it from moving. This is for a switch that does not have any push or pull exerted on it like a receptacle.
 
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