Question 1

What sizes do electrical boxes come in?

Accepted Answer

Common electrical box sizes include: 2x4" single-gang device boxes, 4" square boxes (standard and deep), 4-11/16" square boxes for larger wiring capacity, octagon boxes for lighting fixtures, and round pancake boxes. The 4-11/16" square box is popular for multiple devices or heavy conduit fill.

Question 2

What is a pancake electrical box?

Accepted Answer

A pancake box (also called a shallow ceiling box) is a very shallow round electrical box, typically 1/2" deep, designed for flush ceiling or wall mounting where limited depth is available. They are commonly used for light fixtures where the box mounts directly against a joist.

Question 3

What are the dimensions of a 4-11/16 electrical box?

Accepted Answer

A 4-11/16" (4.6875") square electrical box has a 4-11/16" square footprint. Depth varies by model, commonly 1-1/2", 2-1/8", or 2-1/8" deep. These boxes offer more cubic inch capacity than standard 4" boxes, accommodating more wires or devices.