Junction Box Electrical Back Box Sizes

Different electrical box sizes fit varying installation needs.

Junction box electrical back box sizes. They are designed to be installed onto the front of standard electrical boxes to increase the box capacity or to bring the box flush with the drywall or other surface material. When you re working on electrical wiring and need an electrical box come to grainger for quality and durability. Plus one universal electrical wall box 1 gang 10 cu. Box extenders or extension rings come in a variety of sizes and shapes to match standard electrical boxes.

Suppose you have a 2 inch raceway coming into a 10 inch square box and a 2 inch raceway leaves it on the opposite side. A standard rectangular shape is the most common electrical box. Typical electrical junction boxes. Use 314 28 a to size pull boxes junction boxes and conduit bodies when using conductor sizes 4 awg and larger.

The shape of an electrical box can help you identify its purpose. Choose from a variety of sizes and shapes box depths that range from 1 2 to 4 deep and accommodations for one to six gangs. Grainger carries a junction box selection to help you meet a wide range of different electrical wiring needs. The national electrical code article 314 contains complete details and tables of electrical box sizes in dimensions and cubic inches and should be consulted for complete accuracy because the actual size of the box required in cubic inches depends on the number of wires that will be within that enclosure.