- Adds support to typical electrical wall boxes
- Constructed of heavy-duty, non-conductive plastic for safety
- Prevents arcing by forming a protective barrier
- See More Details
Frequently Bought Together
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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. This box extender has a 2-hour fire rating.
- 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 Overview
- Adds support to typical electrical wall boxes
- Constructed of heavy-duty, non-conductive plastic for safety
- Prevents arcing by forming a protective barrier
Specifications
Dimensions
Product Depth (in.)
1.813
Product Height (in.)
1.05
Product Length (in.)
1.05
Product Width (in.)
0.53
Details
Accessory type
Fitting
Electrical Product Type
Box/Conduit/Fitting Accessory
Product Weight (lb.)
.04
Warranty / Certifications
Certifications and Listings
CSA Listed,UL Listed
Manufacturer Warranty
1 Year
Questions & Answers
28Questions32Answers
Is this a 2-pack??
Asked by KitchenKween March 3, 20157
AnswersYes this is a 2-pack. Comes with screws too.
Can the plastic box extender be used in a metal electrical switch box?
Asked by Tom November 8, 20184
AnswersAs others have stated, yes, they can be....but they cannot be used with self-grounding receptacles that rely on box contact for effectiveness. The grounding screw must always be used in such cases.
Can you slip it over an installed outlet, or do you have to unhook the wires, pull the outlet out, slip the extender in and reinstall?
Asked by Cosonov January 13, 20184
AnswersYou have to have long wires. I was able to rotate the outlet 90 degrees perpendicular towards me, slip on the extender, and then rotate the outlet back vertally.
will this slide into an existing box ?
Asked by Terrylshelton56 February 15, 20173
AnswersThat is what they were designed for and is exactly what I did in my Livingroom.
Will this work with a gfci outlet??
Asked by Erin July 11, 20163
AnswersAbsolutely! The GFCI's have to fit a standard size box. At the opening of the insert, it is standard size, then tapers smaller to slip inside the existing box.
Is the extension adjustable or set? If set, how much of an extension does it give?
Asked by Cosonov January 13, 20183
Answers1.75"
Are these safe to use with wood panel board. Specifically, pine tongue and groove
Asked by Rusty September 6, 20162
AnswersI don't see why not. The insert keeps the electrical away from the wood.
putting quartz stone as a backsplash 1 1/4" thick on existing drywall, will this work?
Asked by sundevil68 January 27, 20202
AnswersThe maximum depth of this box extender is 1 1/2”. Sounds like you have an extra 1/4” to play with. Remember, the box extender fits inside your existing box.
how many inches DEEP does this extend the current box?
Asked by Mark January 11, 20192
AnswersMine are 1.75" deep.
Does a switch or outlet cover plate sit flat against the wall when using these boxes?
Asked by Stainable August 15, 20202
AnswersYes it does.
Customer Reviews
Overall Ratings
I built out a section of unused space under my inside stairs. I set my electrical box for typica...
April 28, 2019
I built out a section of unused space under my inside stairs. I set my electrical box for typical residential thickness drywall 1/2". However I was given some scrap commercial thickness drywall (5/8"). I put the drywall up without thinking of resetting my electrical box.
So I found these extenders and they were the perfect solution to the extra length I needed while still keeping all my wires in a safe enclosure. The pack comes with 2 and the price is very reasonable.
We were putting wall board over lathe and Horsehair plaster, circa 1860. With the nailers and the...
December 19, 2018
We were putting wall board over lathe and Horsehair plaster, circa 1860. With the nailers and the wall board, the 1960's steel electrical boxes were about 1-3/8" recessed. These extenders worked great. Hardest part is trying to get the extended screws to "start" in the recessed box!
This product was excellent it fit the small metal 1 gang boxes that sat back from the drywall as ...
November 6, 2018
This product was excellent it fit the small metal 1 gang boxes that sat back from the drywall as much as 3/4" they are flexable and can be cut and adapt to a 2 gang box as well. I just used them last week on a job where every switch and plug needed one. It worked for every situation
Easy to use extenders that practically fit any box out...
January 9, 2021
Easy to use extenders that practically fit any box out there. Some of of the other like products are limited and won't fit the variety of boxes these accommodate.
Rating provided by a verified purchaser...
November 11, 2020
Rating provided by a verified purchaser
August 19, 2020
This extender was such an easy inexpensive way to extend...
July 21, 2020
This extender was such an easy inexpensive way to extend my two outlets when adding shiplap to the wall. Highly recommend.
very easy to use....
July 21, 2020
very easy to use.
Had a small issue getting the outlets thru extender box....
July 15, 2020
Had a small issue getting the outlets thru extender box.
Worked great. Tapered end makes it adjustable so it fit...
July 1, 2020
Worked great. Tapered end makes it adjustable so it fit or extension to go over our shiplap and the other can be used in our bathroom to come out past our new backslash
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