Old work octagon box - no wings


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Old 02-12-23, 03:27 PM
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Old work octagon box - no wings

I'm installing 2 sconces on a bathroom wall. I bought 2 metal boxes with plaster ears. They didn't have boxes with the wings that expand when you turn the screws. Will these boxes suffice? If so, should I put a piece of wood behind the drywall where the screws will go in?

I have seen the wing ones exist online but the 2 local big box stores didn't have them.

The sconces are nothing crazy...maybe 2 pounds each.
 
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Old 02-12-23, 04:57 PM
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In the picture is most likely the box you've got.
You can add those wings (red arrows) to any box or you should be able to use box supports.

You could fasten a piece of 1x2 above and below the box and fasten to that too.
You'd have to fasten the wood behind the sheetrock with a screw just beyond each end of the box.
 
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Old 02-12-23, 05:24 PM
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The boxes I got don't have the wing as seen on the left of the picture.
 
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Old 02-12-23, 05:56 PM
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You can use Madison/F straps to hold the box to the drywall shown in Fig 1 in the right picture. Otherwise, a lot of the time you can use a standard device box, as shown in Fig 2
 
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Old 02-12-23, 06:19 PM
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Box clips or support bars are obtained separately from any home improvement or electrical supply.

 
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Old 02-12-23, 07:12 PM
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Okay. Thanks. I never would have thought you could get them separate.

I've bought the single/double gang boxes with the wings attached many times.
 
 

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