Attach junction box to metal stud

Old 06-08-20, 11:10 AM
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Attach junction box to metal stud

I added a metal stud wall but the existing junction boxes seem to be the type for wood (screw holes on the inside at an angle). Can you screw through these into a metal stud or is there an attachment to use with them instead of using a dedicated box for metal studs?
Old 06-08-20, 05:31 PM
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If you just added the wall you would use new construction boxes with a side bracket. You could also add a piece of wood on the open side of the stud to catch the screws.
Old 06-08-20, 05:48 PM
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(screw holes on the inside at an angle).
Those boxes are horribly undersized for today's wiring. I would also recommend using 4"x4" boxes with brackets.
Old 06-09-20, 10:05 AM
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Here is a popular bracket used with a 1900 box for steel studs.
Old 06-09-20, 10:16 AM
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Screw a short piece of wood to your metal stud if you want to use the boxes you have.

Wiring in steel studs should pass through grommets not just through the knockout... since the knockout has sharp edges the wire needs to be protected.

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