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quincy 03-23-2011 04:08 PM

Receptacle under mirror
I hope this is the correct forum to post my issue/question for help.

The receptacle is behind the large mirror in our bathroom with mirror cut out for it, the receptacle box mount flush with the wall, with the 1/4" thick mirror in place, the face plate on top of the mirror, everytime we plug or unplug anything to this receptacle, finger almost get cut by the sharp edge of the face plate.
To remedy this issue, i removed the face plate to try to shim the receptacle outward to flush with mirror instead of the wall. Low and behold, the receptacle box mounted about 1/2" too low, the bottom screw half covered by the edge of the cut out. Able to removed the screw and receptacle by lifting the receptacle so the screw uncovered to unscrew it.
One thought i had was breaking the plastic box then cut the dry wall then replace the box higher, unfortunately the opening of the mirror cut out too small not allow me to slide the new box in (luckily i measured first before i break the box).
So my question is how to remedy this beside (a) get someone in to grind the mirror to get room for the screw (b) remove the mirror to relocate the box?
I hope with this long explanation make sense to you.
Thanks in advance.

HIVOLT 03-23-2011 04:37 PM

You can go to a big box store and purchase a box extender. The most common maufacturer is Carlon.

quincy 03-24-2011 10:13 AM

Thought about install the box extender but afraid to put pressure on the mirror when tighten the receptacle up and during plug/unplug thing onto the receptacle?
Afraid to break this large mirror.

HIVOLT 03-24-2011 10:27 AM

I never had a problem using these extenders. Most of the homes I wired were high end and had mirrors installed above sink. In fact most of the mirrors were 1/4" thick.

jeffeverde 03-24-2011 01:06 PM

If I understand correctly -- the faceplate sits on top of the mirror surface, but the receptacle is recessed below the faceplate surface, exposing a sharp edge on the hole where the plug goes?

A box extender is the correct solution, but there are a couple options-

-remove the face plate and use some fine grit (like 200) to smooth the offending sharp edges on the face plate -- doesn't solve the real issue of the recessed box, but at least you won't scrape your fingers any more.

-place plastic shims between the receptacle mounting ears and the junction box to bring the receptacle flush with the mirror. A recessed box really should have a box extender, but with the box recessed in the mirror, you arguably don't have any exposed comustibles, making the shims acceptable. You'll find these in the electrical dept of your local big box store

-use a fine grinding stone or sanding disc in a dremel to enlarge the hole in the mirror so you can install the extender that you really should have.

quincy 03-24-2011 01:40 PM

Didn't know the fine grinding stone or sanding disc in a dremel will cut into glass/mirror.

Have anyone try this?

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