ECN Forum Forums Code Related Discussion NEC & other Code issues 314.23(B)(1) Box Supports.

Throw them in the dumpster, they can not be used.

Darn!

Roger

I think the commentary in the handbook is on the money here. The nails or screws can't be where they would interfere with a device.

I often mount a deep 4 X 4 box against a stud...knocking out the center hole and screwing in a fender washer with a deck screw, then drilling at least two holes through the same side to install some additional deck screws. It's very secure and the screws don't interfere with the installation of the device.

I think this is a case where the legal language of the NEC makes intent as clear as mud.

Dave

This is starting to look like the "Lets talk about screws some more" thread, but less ugly. No one has gotten adimate about it yet. Because no one knows what those holes in the side would be for if not for mounting.

Personaly, I can not see any other purpose for them.....

I would believe "manufacturing expediency" as much as anything else. They may be used in the manufacturing process or they just share a machine that also makes another style of box.

I don't really have an opinion about using them for mounting. I agree with the other poster. If it is securely mounted and in compliance with the other articles it would be fine with me.