Wiring through brick wall

Posted by Percival P. Cassidy on October 2, 2009, 4:24 pm

I want to mount lights on the brick wall either side of the garage door.
I will run the individual conductors (THWN) in WireMold metallic raceway
on the inside sheetrock wall to a box back-to-back with the light
fittings. Do I need to transition then to sheathed cable to pass through
the sheetrock and the brick, or can I continue with the THWN -- or do I
need to use conduit?

Perce

Posted by N8N on October 2, 2009, 4:35 pm

> I want to mount lights on the brick wall either side of the garage door.
> I will run the individual conductors (THWN) in WireMold metallic raceway
> on the inside sheetrock wall to a box back-to-back with the light
> fittings. Do I need to transition then to sheathed cable to pass through
> the sheetrock and the brick, or can I continue with the THWN -- or do I
> need to use conduit?
> Perce

I don't know what you need to do by code, but I personally would use
conduit through the wall to the back of the box (presumably surface
mount) and then run surface mount conduit up into the ceiling (if
there is one) then transition to whatever (romex?)

this way you have a box in the ceiling but on the wall you just have a
pull elbow, much less unattractive

are you sure you need to surface mount inside? i'd be tempted to cut
out a stud's width of drywall and conceal the wiring just to make it
more attractive. you'd only need two 90s in your pipe so the only
thing you'd see after you were done would be a cover plate in the
ceiling, assuming you ever finish the ceiling

nate

Posted by RBM on October 2, 2009, 4:37 pm

>I want to mount lights on the brick wall either side of the garage door. I
>will run the individual conductors (THWN) in WireMold metallic raceway on
>the inside sheetrock wall to a box back-to-back with the light fittings. Do
>I need to transition then to sheathed cable to pass through the sheetrock
>and the brick, or can I continue with the THWN -- or do I need to use
>conduit?
> Perce

You can't run individual conductors without a covering. Why not snake a
cable inside the sheetrock and straight through the brick to a box on the
outside

Posted by on October 2, 2009, 7:20 pm

On Fri, 02 Oct 2009 16:24:27 -0400, "Percival P. Cassidy"

>I want to mount lights on the brick wall either side of the garage door.
>I will run the individual conductors (THWN) in WireMold metallic raceway
>on the inside sheetrock wall to a box back-to-back with the light
>fittings. Do I need to transition then to sheathed cable to pass through
>the sheetrock and the brick, or can I continue with the THWN -- or do I
>need to use conduit?
>Perce

Use a core drill (4") and cut out the brick where you want to mount
the light and mortar an octagonal steel box in to the brick with the
nonn metalic sheithed (NMD or NMW) wire connected to the box in the
normal prescribed way.

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