New Old Work Box for Shallow Walls

[Dennis Alwon]

Just for your Info--- It looks like a good idea
Carlon has introduced a new box for use in shallow walls (furred out block walls 1/1/2” thick) . It looks like a shallow 2 gang retrofit box but the second half is about ¾” shallower than the rest of the box. This part slips in behind the sheetrock. Here is a picture of the box without the cover on the section that goes behind the sheetrock.

http://im1.shutterfly.com/procserv/47b7db11b3127cce857ba262abe500000026100UaNmbRs1Ys

Interestingly enough an electrical contractor brought that box into the local electrical supply this morning. I said where’s the cover and he said it doesn’t come with a cover. I said it isn’t legal without a cover, it must have one. He said the EI said as long as it said UL it was Okay. I said no it ain’t. Fortunately, the supply house had internet access. I found the PDF file and showed him the box with the cover. I bet the Home Depot crew, where he bought the box, threw the covers out not knowing what they were.

Here is the link--- go to page 6 (8 of 22). The part # is B117RSW
http://carlon.com/Master%20Catalog/Zip%20Boxes_2B1.pdf

[barbeer]

Myself and another inspector were asking why hasn't anyone made this to date? They have! Different.

[Dennis Alwon]

Myself and another inspector were asking why hasn't anyone made this to date? They have! Different.

I hope they make one that is the standard depth also. Sometimes you get a situation with 12/3 wire and a few 12/2's it would be nice to get the job down legally.

[celtic]

I said it isn’t legal without a cover, it must have one.


I said the same thing after looking at your pic...LOL.



Did you notice this:
•†B117RSW
† Not UL Classified for Fire Resistance

All the device boxes seem to have the † notation ...but not the round boxes(although the "old work" has it)?

What does that mean?


I did NOT look at every single box....

[Dennis Alwon]

Did you notice this:
•†B117RSW
† Not UL Classified for Fire Resistance

All the device boxes seem to have the † notation ...but not the round boxes(although the "old work" has it)?

What does that mean?


I don't know-- maybe you can't use these boxes in a firewall?????

[stickboy1375]

You cant use any old work style box in a fire rated wall...

[Dennis Alwon]

You cant use any old work style box in a fire rated wall...


See --- I was right for a change--
Thanks Stickboy

[celtic]

You cant use any old work style box in a fire rated wall...


That makes perfect sense ....and I probably unwittingly answered it myself (although the "old work" has it) :roll:


Thank you for translating my own reply Stickboy...LOL.

[quogueelectric]

you are correct it has a cover which easily snaps in and out for ease of wiring. The one in the picture is missing however hd started carrying these boxes last month.

[barbeer]

You cant use any old work style box in a fire rated wall...

You may in fact use an old work box in a fire rated wall, it must be rigidly mounted though.

[Jeff Weissman Electric]

Here is the link--- go to page 6 (8 of 22). The part # is B117RSW
http://carlon.com/Master%20Catalog/Zip%20Boxes_2B1.pdf

I like the metal adjust a box on page 15!

[LAYMAN JOE]

You cant use any old work style box in a fire rated wall...

Would you direct me to the code article that states this? Thanks.

[stickboy1375]

Heres some info...



HERE (http://forums.mikeholt.com/showthread.php?t=85621&highlight=fire+rated+walls)

[iwire]

Would you direct me to the code article that states this? Thanks.

Joe it is not in the NEC, it will be a building code violation.

A fire rated wall is assembly of components put together per a testing labs criteria.

The info can be found in the UL Book for fire rating.

The short story is the only way to install an electrical box in a fire rated wall (and maintain the fire rating) is to have box secured to the studs, it can not be solely supported by the drywall.

[LAYMAN JOE]

Thanks, I just read the thread.

Oops! Cant do that anymore...