CAD$ 15.00 – CAD$ 29.00
This back box cover plate is designed to enclose the back box in hardwired installations that do not use a self-contained cap. It also provides added reinforcement for the adjustable lugs, particularly when mounted in softer materials.
Note: This is not a drywall mud ring.
Is this a drywall mud ring?
No, this is not a drywall mud ring. It’s a dedicated back box cover plate designed to be placed on top of the back box, but behind the finished surface material. Its purpose is to enclose the box and reinforce the adjustable lugs, especially in softer substrates. It does not sit flush with drywall or serve as a plaster mounting ring.
When do I need a back box cover plate?
You’ll need a back box cover plate when doing a hardwired installation without using the self-contained cap.
In NYC, where metallic boxes are mandatory, you must use a hardwired setup with a back box cover plate.
When installing in drywall with a hardwired setup (you’ll need a back box, back box cover plate, hardwired outlet, and outlet cover plate).
You don’t need a back box cover plate if you’re using the self-contained cap for your installation.
The cover plate provides a protective layer between the back box and wall, preventing exposed wires and ensuring safety. It also adds reinforcement when mounting in softer materials.
Why isn’t a back box and back box cover plate required when using the self-contained cap for installation?
The self-contained cap is designed to fully enclose and protect the electrical connections, just like a back box would. It includes a built-in housing for safe wiring termination, a strain relief for Romex or similar cable types and integrated support for secure mounting. Because it already meets the safety and functional requirements of a traditional back box — including insulation, accessibility, and cable anchoring — there’s no need for an additional back box or cover plate when using this cap. It simplifies installation and allows for a cleaner, more compact setup. Always consult local code to confirm this installation method is permitted for your project.
