Shimming switches and outlets


Old 01-29-17, 01:17 AM
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Shimming switches and outlets

Is it ok to shim an outlet or a switch to get it to mount straight against the wall if the outlet or switch ends up not completely perpendicular to the wall?

I did it on a couple with some left over wire insulation when I had stripped a couple wires and it seemed to work pretty good.

What I do is put it under either of the metal tabs that when the screw tightens the outlet or switch in sits against the wall that I want to bring out a little from the wall to true it to 90 degrees.

Do they sell shims for this purpose?
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Old 01-29-17, 04:06 AM
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Here is a page of different shims found in almost ant hardware store.
Old 01-29-17, 04:21 AM
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I use the GB Lego's mentioned in Don's link. However, you can't have the box sitting too far back in the wall as the gap must be closed to within 1/8". If more, then you need box extenders.

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