you can't take two of the single gang ones and gang them together?
Typically those boxes *are* only sold in single gang, but you can take
'em apart and put 'em back together for 2- or 3-gang applications.
possibly true, but I was just trying to address his post which was
that he couldn't find two-gang old work boxes - I don't think that he
will, but that's not really a problem.
I guess it all depends on how often the appliance connected to it is
plugged in and unplugged. I probably would replace it with a new work
box at the next repaint, myself. Or if it were an area that had extra
paint, just go ahead and do it now.
Depending upon the box type and composition, clamps or connectors may or may
not be required. For metal boxes, I'm a big fan of the Arlington button.
They take up very little space and are easy to use. Be sure to use boxes of
adequate size for the size and amount of cables you plan to use in each box.
I am curious...., why don't plastic boxes come with round knock-outs like
metal boxes have?
Instead of having to deal with the blue plastic bendable flaps, I would much
rather have a plastic box with round knock-out holes, and then use Arlington
buttons to secure the incoming wires.
You can get larger plastic boxes, like 4" square with knockouts, but I've
never seen them on single gang boxes. I'm not real sure that a button will
hold tight in a plastic box. It may be slightly thicker than steel
That's the part I don't get. I wonder why they don't seem to make plastic
single gang boxes with knockouts instead of those annoying plastic bendable
flaps/tabs. Then either make Arlington buttons that work with them or be
able to use the metal connectors that are used with metal boxes.
Y'know, that just registered... I think for 12/2 you will need to use
a large box. the standard 2-1/2" switch boxes don't have enough
capacity to accomodate two cables, clamps, and a device by current
code. you'll need whatever the deeper size is.
Probably. I'm not an electrician and I've never had a copy of the NEC,
so I can't say yes, but you should use clamps regardless.
You're supposed to use add-on clamps for those knockouts. They not
only hold the romex in place, they fill the rest of the hole, so that
sparking and fire will stay in the box and not spread to the wall.
I've never heard of the use of grommets here and I woudln't consider
using them. They don't fill the hole.
Felix has a point. IF you want to do this yourself, at least read a
couple books on the subject. They have DIY books that deal with
electricity. Some have long chapters. If they're long, maybe 2 or 3
of them would be enough. they have them at the libary and the book
department of Home Depot etc. (If they only have in stock, "How to
illuminate your patio", that will probalby go too fast past the basic
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