Romex to splice box

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Old 06-28-14, 07:30 PM
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Romex to splice box

How many romex cables (2 wire with ground - 12-2) can be used in a 4 inch square
splice box - not individual wires, but romex cables.
 
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Old 06-28-14, 07:39 PM
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How deep is the box? Common depths are 1 1/2" and 2 1/8".
 
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Old 06-28-14, 07:42 PM
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I believe the box is 2 1/8 inches but I would have to get up in the attic and check.

In any case can you give the mas romex to each size box?
 
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Old 06-29-14, 07:45 AM
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Read this article to the end, it's not that hard to calculate box fill.

Box Fill Calculations | Code Basics content from Electrical Construction & Maintenance (EC&M) Magazine
 
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