Table
Octagon and Square Box Volume Table
Octagon and Square Box Volume Table reference with assumptions and boundary notes.
Reference boundary
Box catalogue reference only. It does not perform box-fill calculations or replace the marked volume on the actual box.
Reference table
Reference common metal octagon and square box nominal volumes for catalogue comparison.
| Box type | Nominal depth (in) | Nominal volume (mL) | Nominal volume (in3) | Boundary |
|---|---|---|---|---|
| 3 in octagon | 1.5 | 246 | 15 | Catalogue volume reference only; use the marked volume on the actual box |
| 4 in octagon | 1.5 | 344 | 21 | Catalogue volume reference only; use the marked volume on the actual box |
| 4 in octagon | 2.125 | 541 | 33 | Catalogue volume reference only; use the marked volume on the actual box |
| 4 in square | 1.5 | 344 | 21 | Catalogue volume reference only; use the marked volume on the actual box |
| 4 in square | 2.125 | 541 | 33 | Catalogue volume reference only; use the marked volume on the actual box |
| 4-11/16 in square | 2.125 | 688 | 42 | Catalogue volume reference only; use the marked volume on the actual box |
Use notes
- Use this table for preliminary reference and arithmetic checks only.
- Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.