How Many Wires In A Single Gang Box? - Electrical - DIY Chatroom Home Improvement Forum

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Old 10-04-2012, 12:48 PM   #1
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How many wires in a single gang box?

I am wiring new basement plugs and have a homerun coming from panel into single gang box. The box is in the middle of the wall and I want to go right and left from there to install additional receptacles.

There are 4 holes in the blue box 2 top 2 bottom so is it ok to have 1 in 2 going out? Or do I need to install a double gang box to have room for the extra wire? Or install a junction box first?


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Old 10-04-2012, 01:09 PM   #2
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Depends on the gauge of the wire and the size of the box.


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Old 10-04-2012, 02:33 PM   #3
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14-2 wire and is a standard single gang blue box. not shallow not extra deep.
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Old 10-04-2012, 03:59 PM   #4
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If you look very closely inside the box, it should indicate the cubic inches of the box. Please provide this number and we can tell you the number of conductors that can be placed in there.

Please note that there are additional considerations, like whether the box itself will have a receptacle in it (a receptacle typically counts as 2 conductors).
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Old 10-05-2012, 08:39 AM   #5
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You haven't received much feedback because this subject has been covered ad nauseum here. As Pat said, in every box there is a cubic inch measurement that is a max the box can hold. A simple google or DIY Chatroom search on electric box count will tell you how to count.

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Old 10-05-2012, 10:37 AM   #6
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6 cables plus device is fine in a 2 1/2 inch deep box. I don't think wirenuts count in the u.s for fill but I'm sure someone south of border will be along shortly to confirm that.


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