Model # BE1-2

Internet #202708650

Store SKU #169289

null Electrical Box Extender

Electrical Box Extender

  • Adds support to typical electrical wall boxes
  • Constructed of heavy-duty, non-conductive plastic for safety
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Frequently Bought Together

Product Overview

The Electrical Box Extender lends support to the contents of a wall box. This non-conductive extender helps prevent arcing by forming a barrier between the box and the metal screws on the device.

  • Levels and supports wiring devices in an electrical box
  • Helps prevent arcing by forming a barrier between a metal box and metal side screws on the device
  • Heavy-duty, non-conductive plastic construction
  • UL and CSA safety listings
  • Complies with 2008 NEC Article 314.20
  • Note: Product may vary by store.



Product Depth (in.)
Product Height (in.)
Product Length (in.)
Product Width (in.)


Accessory type
Electrical Product Type
Box/Conduit/Fitting Accessory
Product Weight (lb.)

Warranty / Certifications

Certifications and Listings
1-UL Listed,CSA Listed
Manufacturer Warranty
1 Year

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Customer Questions & Answers

Is this a 2-pack??

One of the reviews mentioned that this is a 2-pack.
Asked by: KitchenKween
The product I bought contained 2 box extenders that could be used on either 2 single outlet boxes or joined together to use on a double box.
Answered by: DoItYourselfer
Date published: 2015-11-06

Will this work with a gfci outlet??

Asked by: Erin
This is meant to extend an outlet or light switch box, the type of outlet (GFCI or regular) doesn't matter. So yes, you can. We installed a GFCI outlet in ours.
Answered by: Jack
Date published: 2016-09-21

can extension boxes be trim?

can these extension box be trim to fit 3/8" extension?
Asked by: radar
Yes, it is a think plastic that can be cut with scissors.
Answered by: Jack
Date published: 2016-09-21

Can you use two of these (side by side) to fit a 2 gang wall box?

Can you use two of these (side by side) to fit a 2 gang wall box?
Asked by: Eddy
It wouldn't work in the way you stated. Using an actual 2 gang junction box in the extender version will work.
Answered by: JosephHDATL
Date published: 2017-04-23
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Customer Reviews

Electrical Box Extender is rated 4.7 out of 5 by 13.
Rated 5 out of 5 by from Easy peasy! We remodeled our kitchen and used stone as the backsplash. It's much thicker than tile & I was hopeful the extender would do the trick for getting the outlets in their proper places (never had this issue before). After turning off the power, and unhooking the outlets, the extenders were a piece of cake to install!! We would not hesitate to get more if we ever need them again! :)
Date published: 2017-04-11
Rated 4 out of 5 by from does the job well i recently installed a mosaic backsplash in my kitchen, with the backerboard, mortar, and tile thickness it recessed the outlets over 3/4's of an inch. these box extensions were a nice universal extension that filled the void. the backs are tapered and they flex if you have interference on the sides or top of your hole. a little pricey for what they are but they do the job well.
Date published: 2012-10-22
Rated 5 out of 5 by from Perfect for older outlets We installed a reclaimed wood wall and needed this to keep the outlet flush with the new wall. It fit perfectly in our older 1930's home. The outlet box we needed to fit was 1 3/4" x 2 7/8" and this slid right in. The back of it is tapered to a bit smaller so install was easy. It's a thin plastic so you could easily cut it with scissors. Definitely recommend!
Date published: 2016-09-21
Rated 5 out of 5 by from Great Cut them with scissors to trim them however you want. They are flexible and easy to use. A bit expensive but so darn easy to use and versatile that it's worth it. They come two per pack and they include long screws.
Date published: 2015-10-29
Rated 5 out of 5 by from Did just what it was supposed to. I used this to fix a tricky outlet box that the builder had apparently installed before installing the drywall so it was 1/2 inch too far back. This fixed it perfectly.
Date published: 2015-01-26
Rated 5 out of 5 by from Perfect for the job I needed these after installing a tile backsplash in my kitchen. I was surprised to learn that this is actually a 2-pack, and extended screws are included in the package. The extender itself is sort of a flimsy plastic, though this actually makes it very easy to trim with a tin snip and is still sturdy enough for its application. Overall I'm very pleased with this product, and it fit my needs perfectly.
Date published: 2014-05-11
Rated 5 out of 5 by from Great product! I am by no means an expert on all things electrical, in fact I am just learning. I had installed some bead board leaving the electrical outlets recessed too deeply. I didn't know how to fix the problem until I had done some research and discovered that my self remedy was not up to code and potentially dangerous. These boxes are great and easy to install. I feel much better now knowing that I have fixed it the right way.
Date published: 2015-11-05
Rated 5 out of 5 by from They work, but may need to be trimmed a little. If you're a pro you might say: "well duh". If you're a "try-it-yourselfer" like me, be prepared to trim the extenders as necessary. My 1950's plastic electrical boxes have some sort of ridge inside that blocked the extenders from being inserted. I trimmed off all but the front face plate and they worked out fine.
Date published: 2015-07-30
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