Nec Box Fill: metal_box
NEC (NFPA 70) box fill requirements — minimum volume for metal outlet/device/junction boxes (Table 314.16(A)) and volume allowance per conductor by wire size (Table 314.16(B))
| record type | box key | description | max conductors awg 10 | max conductors awg 12 | max conductors awg 14 | max conductors awg 16 | max conductors awg 18 | max conductors awg 6 | max conductors awg 8 | min volume cm3 (cm3) | min volume in3 (in3) | nec table | standard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| metal_box | 100x32_round_octagonal | 100 x 32 (4 x 1-1/4) round/octagonal | 5 | 5 | 6 | 7 | 8 | 2 | 5 | 205 | 12.5 | 314.16(A) | NEC (NFPA 70) 2017 Edition Table 314.16 |
| metal_box | 100x32_square | 100 x 32 (4 x 1-1/4) square | 7 | 8 | 9 | 10 | 12 | 3 | 6 | 295 | 18 | 314.16(A) | NEC (NFPA 70) 2017 Edition Table 314.16 |
| metal_box | 100x38_round_octagonal | 100 x 38 (4 x 1-1/2) round/octagonal | 6 | 6 | 7 | 8 | 10 | 3 | 5 | 254 | 15.5 | 314.16(A) | NEC (NFPA 70) 2017 Edition Table 314.16 |
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