How Does An Outlet Box Extender Work

By | January 11, 2023



The modern home is full of electricity, and it can be intimidating to tackle projects that require access to electrical outlets. Outlet box extenders are essential tools for any DIY electrician to have in their toolbox. By adding extra space behind the wall, they make it easier to access existing wiring while adding new wiring, too. But how does an outlet box extender work? In this article, we'll explain the basics of outlet box extenders and what they can do for your electrical projects.

Outlet box extenders, sometimes referred to as "pancake boxes," are specially designed pieces of metal or plastic that fit over an existing outlet box and add an extra space between the box and the wall. This extra space gives you more room to properly attach additional wiring, as well as providing access for removal of existing wiring if necessary. The extender fits snuggly against the wall and doesn't interfere with the existing outlet box, making it the perfect addition for any wiring job.

Outlet box extenders come in two main types: those with a depth of 3/4" and those with a depth of 1-1/2". The 3/4" extenders are designed to fit over standard single-gang electrical outlet boxes, while the 1-1/2" extenders are designed to fit over double-gang electrical outlet boxes. Each type of extender comes with mounting screws and instructions on how to install it. It's important to read and follow the instructions carefully to ensure that the extender is installed properly and securely.


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