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Old 06-04-2012, 08:56 PM   #1
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I am confused by how the multigang boxes are called


I have a few large electrical boxes, large as in wide but same height and depth as those 20/20 boxes.

I have one box that is 12-1/2" wide, 4" tall and 1-3/4" deep. It has seven knockout holes on top and bottom. It was installed by an electrician last year but now I am finishing his work.

In looking up on Garvin's website, they called this one:

http://www.garvinindustries.com/Elec...ckouts/GB-2125



a "FIVE GANG MULTI GANG BOX".

Can someone tell me exactly what makes it "FIVE" gang?

The reason I am asking is, I am trying to find the corresponding mud ring for this box, such mud ring will need to support the mounting of five switches. What would you call such a mud ring?

I found this one:



They call it a "Five Gang Multi-Gang Box 1/2" Raised Device Cover". This is what I need.

However, I have another box the same size, but I only need four switches, not five. Do they make mud rings for this box, but not for FIVE switches but only FOUR? Or do I have to be stuck with a dummy slot on the wall plate?

I also have two other boxes with smaller widths.

One is 10-5/8" wide, it has 6 knockout holes on top/bottom.



This is thus a FOUR GANG MULTI GANG BOX, but I can't find mud rings that are not with four switches.

Basically I guess my two questions are:

(1) What is the rule used to determine how to call a particular box? What makes the first box "FIVE" gang and the second one "FOUR" gang?

(2) Do they make mud rings for these boxes with fewer switches/devices then their maximum accommodation?

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Old 06-04-2012, 09:05 PM   #2
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I am confused by how the multigang boxes are called


I found this on the site you linked too....

Each cover fits corresponding box size and one box size smaller.

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Old 06-04-2012, 09:05 PM   #3
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I am confused by how the multigang boxes are called


Here is one from Lowe's:




Here is another one from Garvin:

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Last edited by kbsparky; 06-04-2012 at 09:56 PM. Reason: Added 2nd pic and link
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Old 06-04-2012, 09:10 PM   #4
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I am confused by how the multigang boxes are called


You could just use the single gang boxes and screw together how-many gangs you need. The sides are removable for this purpose. You also wouldn't need the mud ring.
http://www.homedepot.com/webapp/wcs/...-202058381-_-N

Edit: there's different mounting configurations available as well.
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Last edited by Clutchcargo; 06-04-2012 at 09:17 PM.
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Old 06-04-2012, 09:12 PM   #5
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I am confused by how the multigang boxes are called


Quote:
Originally Posted by kbsparky View Post
Here is one from Lowe's:

I don't think that will fit. He has a 5 gang box installed, so that mud ring would fit a 4 gang box, or a 3 gang box.
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Old 06-04-2012, 09:23 PM   #6
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I am confused by how the multigang boxes are called


Quote:
Originally Posted by Clutchcargo View Post
You could just use the single gang boxes and screw together how-many gangs you need. The sides are removable for this purpose. You also wouldn't need the mud ring.
http://www.homedepot.com/webapp/wcs/...-202058381-_-N

Edit: there's different mounting configurations available as well.
I already have those installed previously, and already have wires going into them so changing at this time is difficult. Besides, some of the wires are pass throughs, they come in from one conduit and leave in another without a splice or break.

The boxes work, there is plenty of room, just that when it was installed I wasn't exactly sure how many switches, or later I changed my mind and cancelled a fan, or added a light etc...
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Old 06-04-2012, 09:25 PM   #7
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I am confused by how the multigang boxes are called


Quote:
Originally Posted by miamicuse View Post
I already have those installed previously, and already have wires going into them so changing at this time is difficult. Besides, some of the wires are pass throughs, they come in from one conduit and leave in another without a splice or break.

The boxes work, there is plenty of room, just that when it was installed I wasn't exactly sure how many switches, or later I changed my mind and cancelled a fan, or added a light etc...
Just install a dummy switch, or find a use for the empty slot... personally, I try to stay away from so many switches being ganged up, makes it too confusing for most people.
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Old 06-04-2012, 09:26 PM   #8
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I am confused by how the multigang boxes are called


Quote:
Originally Posted by stickboy1375 View Post
I found this on the site you linked too....

Each cover fits corresponding box size and one box size smaller.
OK I must have missed this.

So basically, if I have a four gang box, I can use the mud ring for a four gang box (which will allow me to mount four switches) or a five gang box (which will allow me to mount five switches). I presume I will use the inner set of screw holes for that case.

However, if I have a four gang box and I only want three switches, I have no way to do it other than dummying one in.

hmmm...
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Old 06-04-2012, 09:32 PM   #9
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I am confused by how the multigang boxes are called


Quote:
Originally Posted by miamicuse View Post
OK I must have missed this.

So basically, if I have a four gang box, I can use the mud ring for a four gang box (which will allow me to mount four switches) or a five gang box (which will allow me to mount five switches). I presume I will use the inner set of screw holes for that case.
If you have a four gang mud ring, then you can use a 4 OR a 3 gang box....
If you have a five gang mud ring, then you can use a 5 OR a 4 gang box....


In your current situation, with a 5 gang box installed, you could use a 5 OR 6 gang mud ring....
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Old 06-04-2012, 09:42 PM   #10
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I am confused by how the multigang boxes are called


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Originally Posted by stickboy1375 View Post
I don't think that will fit. He has a 5 gang box installed, so that mud ring would fit a 4 gang box, or a 3 gang box.
The OP stated he had a 4-gang box, but could not find a cover. The 4-gang cover should fit the 4-gang box.
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Old 06-04-2012, 09:51 PM   #11
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I am confused by how the multigang boxes are called


Quote:
Originally Posted by kbsparky View Post
The OP stated he had a 4-gang box, but could not find a cover. The 4-gang cover should fit the 4-gang box.
you're correct, I missed that part where he had two SMALLER boxes installed... my brain latched on to the 5 gang box he posted.
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Old 06-04-2012, 11:02 PM   #12
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I am confused by how the multigang boxes are called


I have two five gang boxes, one four gang and one three gang.

The problem is one of the five gang boxes I only have four switches. That box can only take a five gang mud ring or a six gang mud ring.

I think I will have to make a dummy slot.

Is there any sort of special gadget that serves as a night light or something that will occupy one decora slot on the wall plate?
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Old 06-05-2012, 12:14 AM   #13
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I am confused by how the multigang boxes are called


Quote:
Originally Posted by miamicuse View Post
I have two five gang boxes, one four gang and one three gang.

The problem is one of the five gang boxes I only have four switches. That box can only take a five gang mud ring or a six gang mud ring.

I think I will have to make a dummy slot.

Is there any sort of special gadget that serves as a night light or something that will occupy one decora slot on the wall plate?
Why don't you just buy another 4 gang box?
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Old 06-05-2012, 12:54 AM   #14
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I am confused by how the multigang boxes are called


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Originally Posted by stubie View Post
Why don't you just buy another 4 gang box?
Everything is already wired. Each of these boxes have eight, nine conduits connected to it.

Some of the wires are pass thrus, comes in one conduit out another, no breaks or splices. Replacing the box now would require me to cut these wires. Just don't want to go through all that right now.
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Old 06-05-2012, 05:11 AM   #15
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I am confused by how the multigang boxes are called


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Originally Posted by miamicuse View Post
....Is there any sort of special gadget that serves as a night light or something that will occupy one decora slot on the wall plate?
Something like this?


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