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Plastic Old work Box extender Electrical Box

Ratings & Reviews for CANTEX Plastic Old work Box extender Electrical Box

4.3
125
Review
 4.3 out of 5
125 Reviews


77% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise these electrical box extenders for bringing outlets flush with new wall surfaces like drywall, tile, and paneling. Most find installation quick and straightforward using just a screwdriver, with many describing the product as well-made and durable. Reviewers consistently report the extenders work perfectly for remodels and depth adjustments, extending boxes by about an inch. Some mention the included screws are too short and require purchasing longer 6-32 pan head screws separately. Despite minor hardware concerns and occasional compatibility issues, the vast majority consider the product reliable and effective for their renovation needs.

Customer review summary generated by AI, including incentivized reviews.
125 Customer Reviews

Buy longer screws

Would Not Recommend

It sort of works, but the screws included don't reach and the value just isn't there, it's difficult to work with but seems to be the only option.

March 5, 2025
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Expensive

Way to expensive

February 27, 2025
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Include the proper length screws!

Would Not Recommend

It's a nearly $6 (Jan 2025) specialty piece of plastic, so it better be ready to perform the convenience charge function without disruption. The included screws are too short. If it sits flush on the existing single gang box, the included screw should be LONGER than the depth of the box to secure outlet and extender. Why is that difficult for the engineering/manufacturing team to understand?!

January 29, 2025
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Good extender.

Would Recommend

It fits like a glove in the outlet.

January 3, 2025
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It went up fairly quickly, easily and looks good.

October 22, 2024
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The work but seem priced a little high.

Would Recommend

These extender boxes worked great. Most of my existing back boxes for the light switches and electrical outlets are too short in that they are not flush with the face of the wall. Probably due to the wall having double sheet rock. So the edge of the box is about 5/8" shy of the face of the wall. I bought 3 of these extender boxes and they worked to add the extra 5/8" I needed. These extenders won't add more than about 1" of depth to your box, so they won't work if you need more than that. Also, ...

September 25, 2024
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Buy again

Would Recommend

Perfect for my home project. Would buy again

August 27, 2024
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Not a true box extension…

I have worked with better box extensions… this is just as re-purposed LV-1 and required modifications to actually “work” with an installed rework box (buried behind added siding). Not to mention the included screws aren’t long enough to be useful so I had to supply my own longer screws.

July 15, 2024
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Code said I needed these cheaply made trinkets.

Would Not Recommend

Sooooo expensive for something so cheap.

May 18, 2024
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Perfect after installing backsplash

Worked as advertised!

April 16, 2024
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Same

Would Not Recommend

Tabs are way too small

April 12, 2024
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