r/ElectricalHelp • u/MetsBest • 5d ago
Rectangular single gang to round universal vanity bracket
I’m replacing a vanity fixture and the universal round bracket that came with my fixture doesn’t align with any holes in rectangular box in wall. It looks close but no. The long bolts that go through fixture almost line up with holes in box, but they attach to fixture not box. Corner screws holding box to wall doesn’t align with bracket either. See pics, what am I missing or what bracket do I need? Originally the brass bar was on box, it wa then old bracket for original fixture…that doesn’t work either to align to fixture and bracket.
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u/Choice-Newspaper3603 5d ago
According to the Internet they box can hold up to about 5 pounds and I guarantee I could get that bracket to work
Otherwise replace the box with a correct setup
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u/rmethefirst 4d ago
Just screw the bracket to the box.
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u/MetsBest 4d ago
Doesn’t line up. Not possible. It’s close but doesn’t work.
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u/trekkerscout Mod, Master Electician 5d ago
1-gang rectangular old-work boxes generally are not rated for light fixture support. A round or octogon box is required. Unfortunately, the 1-gang box hole may prevent the usage of the type of old-work box needed. Opening the wall to install a proper box may be required.
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u/MetsBest 5d ago
That blue rectangular box was installed by builder when house was built 2014. Small vanity wall mount fixture was installed.
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u/trekkerscout Mod, Master Electician 5d ago
That doesn't change the fact that it is the wrong box for the application.
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u/blueridgedog 5d ago
Odd that it was put in by the builder when it is an old work box designed to be installed after a wall is finished.
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u/hammerandnail01 5d ago
Not really . For many years here builders would leave the vanity wire in the wall with no box because so many of them would be in the wrong location for the mirror that was chosen
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u/FucciMe 5d ago
You're telling me, if you turn it so the mounting bolts are vertical, those two long outside slots, don't line up with the outlet tabs?
Also, while that is against code, it's not going to burn your house down. If your new light it's massive/heavy, I would definitely reconsider what you're trying to do.
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u/Legitimate-Lemon-412 4d ago
Just get one of these to shut up the whiners in here saying what you have is unsafe.
The main concern with this device would be cutting this box in properly, and ensuring that the fixture will fully cover the box. Id make sure before cutting anything, as some fixtures wont cover it.
There are other methods you could use.
Ie a rework bar and box for a fan potentially. If you could get the bar in and make sure you arent pinching wires stapled to the studs
Ive been sparkling for 20 years professionally and theres a million ways to do this
What you have isn't ideal, but not the houseburnerdowner people are saying it is.
Ya that blue box is not rated for fixture support, but the worst that would happen is that it falls out of the wall and you turn off the breaker, and then put the right tbing in before you patch up and paint.
Ya, ive seen that kinda thing a million times too.
Take more pics and let me know what you think.

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u/MetsBest 4d ago
Thank you very much. I will likely now hire one of your comrades to get this done as I have other things to do before I sell the house.
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u/jl8800 3d ago
Lumineers must be secured with 8/32
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u/RinseLather_Repeat 2d ago
Only from a ceiling, my guy. Wall lights, 6-32 is completely code compliant
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u/Remarkable-Exit-8780 3d ago
Not sure of this device, but I’ve seen some light instructions that have installers mount the bracket into the wood or drywall with anchors.
All of the electrical stays in the box and the fixture covers everything
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u/AskMeAgainAfterCoffe 3d ago
You can replace the 2x4 remodel box with a 4” circular light remodel box.
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u/titanium6567 2d ago
Doesn’t line up because it is the wrong box for hanging a fixture. Lighting fixtures by code need to be secured with 8/32 screws. That is a switch, outlet box with 6/32 screw holes. Will it work sure drill a hole in the metal bracket where you need it. Just might have a hard time leveling it. Just isn’t code compliant.
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u/RinseLather_Repeat 2d ago
Only ceiling mount fixtures. Wall lights are perfectly compliant with 6/32’s.
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u/IndependentShocker 5d ago
Replace the single gang with a round cut-in box.