You calculate box volume per 314.16(A) and box fill per 314.16(B), but make sure your 314.16(A) box volume is greater than or equal to your 314.16(B) box fill. Box volume. Table 314.16(A) seems to ...

After checking the total volume of your box, use this chart to determine the number of "wires" allowed based on the wire size you're using. How to Calculate Box Fill. For example, ...

In fact, Table 314.16(A) tells you the size of the most common standard boxes and how much they can hold. The minimum box volume must allow for conductors, devices, and fittings. The volume of a box ...

When you calculate the volume you are thinking about how many of these 1cm³ cubes will fit in the space. You represent this cubic measurement by writing a small ‘3’ at the end of the measurement.