Specification :

4" Square Box ( Drawn)

Also known as 4" squares. These drawn boxes are of drawn construction, and come in two sizes: 4" and 4 11/ 16" . Square boxes are generally mounted in the wall for receptacles or devices, or used as a wiring junction box. They can also be ceiling mounted to be used as a junction box or to mount lighting fixtures.

Size:
4" x 1-1/ 4" 18.0 cu. in. interior
4" x 1-1/ 2" 21.0 cu. in. interior
4" x 2-1/ 8" 30.3 cu. in. interior? ?
4-11/ 16" x 1-1/ 4" 25.5 cu. in. interior
4-11/ 16" x 1-1/ 2" 29.5 cu. in. interior
4-11/ 16" x 2-1/ 8" 42.0 cu. in. interior