electical boxes

[Gunny]

This may be a dumb question. im building my theater and i plan on using 2 layers 5/8" drywall and i cant seem to find any boxes that will go that deep.
Does anyone know where i can find these? thanks

[solarrdadd]

Originally Posted by Gunny

This may be a dumb question. im building my theater and i plan on using 2 layers 5/8" drywall and i cant seem to find any boxes that will go that deep.
Does anyone know where i can find these? thanks

they make 2.5" deep boxes, try those.

[kareface]

I used normal sized boxes. I just nailed them right to the edge of the studs. They are a little recessed but it doesn't seem to hurt anything.

[Gunny]

thanks for the replies, thats kinda what i tought i would have to do.

[Rob71]

I remodel kitchens and baths, and whenever I do a tile backslash I use these.

be1-sm.jpg

http://70.86.88.179/m_9.htm

Just mount your box normally, then hang the two layers of sheet rock. The extenders are slightly smaller than the box, so no cutting is necessary. You may need some longer screws for your receptacles.

[mastertang]

Originally Posted by Rob71

I remodel kitchens and baths, and whenever I do a tile backslash I use these.

Attachment 13523

http://70.86.88.179/m_9.htm

Just mount your box normally, then hang the two layers of sheet rock. The extenders are slightly smaller than the box, so no cutting is necessary. You may need some longer screws for your receptacles.

This is correct, and technically speaking it is required by the National Electric Code if the box is more than 1/8 inch from being flush (or 1/4 inch) with the wall.

Depending on where you are in your project, you could reverse the nails in a single gang box. In that case when facing the wall you would be nailing slanted towards the interior. This will give you more distance into the double wall, but it is slightly less stable, so you must make sure it's as tight as possible.

Bottom line, if you can secure a box to any surface it's OK. You could screw the box to a 2x4 nailed up between two studs to give you precise control over depth.

The box extensions aren't cheap (1.50-2.00 each) on a large scale, but if you have a dozen or so receptacles to do, it's the easier choice.

Cut-in boxes (or old work boxes at Lowe's) may be able to handle the depth of double 5/8 sheetrock, but I'm not sure since I've never had to try that.

[Gunny]

thanks again guys.
i may have found some that might work.
what do you think of these...they might go to 1 1/4"
http://www.licensedelectrician.com/Store/SmartBox.htm

[DiverSpear]

Here is the proper box to use. It is designed and UL listed just for this purpose.

http://www.carlon.com/Product_AdjustableZipBoxes.html

[Gunny]

thats perfect, i knew there had to be something like this. thank you so much.
i was having a very hard time finding these becuase i didnt know what they were called.