Box fill calculator
box_fillRead-onlyIdempotent
Minimum outlet box volume from NEC 314.16(B): conductor, device (2 each), clamp and grounding allowances times the Table 314.16(B) volume for the largest conductor.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| awg | Yes | Largest conductor. "6" = 6 AWG; "8" = 8 AWG; "10" = 10 AWG; "12" = 12 AWG; "14" = 14 AWG; "16" = 16 AWG; "18" = 18 AWG. | 12 |
| clamps | Yes | Internal cable clamps. "0" = None; "1" = One or more. | 1 |
| devices | Yes | Devices (switches, receptacles). | |
| grounds | Yes | Equipment grounding conductors. "0" = None; "1" = One or more. | 1 |
| conductors | Yes | Insulated conductors (not counting grounds). |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| ok | Yes | ||
| url | Yes | ||
| code | Yes | ||
| rows | Yes | ||
| table | No | ||
| inputs | Yes | ||
| summary | Yes |