1

How do you install electric outlets on both sides of a 2"x4" interior wall to meet code? The back of each box (and wires entering box) is very close (less than 1/2") to the front of the other side of the wall. Is there code on how to do this?

  • 2
    Hello, and welcome to Stack Exchange. Where are you located? – Daniel Griscom Nov 25 '18 at 0:00
1

I'd use 4x4 boxes that are 1-1/2" deep with single gang raised mud rings. These will give you plenty of room inside.

Feeding through the backs of the boxes with a nipple sounds easy but will turn out to be a pain. Better to just feed bottom to bottom with a short romex jumper.

  • Any reason you don't use 120mm boxes instead of 100mm for this? – ThreePhaseEel Nov 25 '18 at 4:25
  • @ThreePhaseEel - no, no reason, 4x4 is just my default box, do you prefer the 411? – batsplatsterson Nov 25 '18 at 9:33
  • 2
    I'd use a 5" or larger even if you could get them in such a shallow depth -- you can never have enough box space ;) – ThreePhaseEel Nov 25 '18 at 15:13
  • @ThreePhaseEel it's fine to do, but I don't generally stock 120mm boxes (4-11/16") that are shallow enough. When I use them I am all about the cubic inches, so I buy deep 120s. – Harper - Reinstate Monica Nov 25 '18 at 16:27
  • 1
    Got it! 2 x 1.5" deep boxes = 3" which leaves a small gap between them when back-to-back in the wall. The mud rings get them to the surface and give a smidge more room for wiring. – FreeMan Nov 27 '18 at 18:49

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.