Adding light fixture over bathroom sink with plumbing vent obstruction


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Old 01-16-22, 10:13 AM
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Adding light fixture over bathroom sink with plumbing vent obstruction

Hi- Iím redoing a small bathroom and Iíd like to add a light over the bathroom sink which did not exist previously. Running the electrical wonít be an issue since Iíve removed the bottom half of the drywall. However, there apparently is a plumbing vent running right up the middle of the wall so I wonít be able to install a full size electrical box. I assume I can use some sort of shallow box? I wonít be able to attach it to a stud unless I remove the drywall.

thoughts?




 
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Old 01-16-22, 10:19 AM
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You will put on a horizontal board just like you have in the photo. Drill a 1" hole in that board for the wire to go through, and yes, they make shallow metal boxes. Put the wire through a cable clamp, put the cable clamp through the shallow round metal box, put the cable clamp nut on the inside of the box and tighten it, then screw the box onto the board.

Obviously you will need to remove and patch the drywall... the board goes up first and you need to choose which knockout to remove from your box and mark where you are going to drill the hole based on where the light is going to be.

With all those holes in that horizontal 2x6 I hope no one put a screw into your vent pipe. It should have had a metal "no nail" plate protecting it.
 
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Old 01-16-22, 10:24 AM
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Thanks! I didnít notice that re: the vent pipe!
 
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Old 01-16-22, 01:21 PM
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What are you using for a fixture ?
Many bathroom wall fixtures have a wiring pan built in and don't require any box.

There are many strip lights from 3-7 bulbs. They have a metal pan with multiple knockout locations on the back. You bring the wire out of the wall, thru the connector in the pan which is directly into the fixture. No box required.
 
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Old 01-16-22, 01:39 PM
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ThanksÖ havenít decided but definitely an option.
 
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Old 01-16-22, 02:13 PM
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And if you get a wall mounted led medicine cabinet, it may require an outlet above. Nowadays many of them come with transformers and a cord. So figure out what you are putting there because there are many ways to wire it depending on the light.
 
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