Arlington Industries Electrical Box Extender

Electrical Box Extension Up To 1-1/2" For A Flush Finish


What's special about this electrical box extensions?

  • Allows you to correct setbacks and insulate devices with an easy install design
  • Eliminates the need to align device screws with extender holes, and then trying to find the holes in the box
  • Adjusts up to a 1-1/2" box extension for a flush mount and neat finish
  • Continuous, smooth, non-metallic side walls enclose devices completely creating an insulating barrier between the device and the metal box
  • Click for More Features
ULCSA Approved

The purpose of the Arlington Industries Electrical Box Extender is to allow you to pull out your electrical box so that it lays flush with the newly installed wall covering, without having to remove or repositioning the existing box. Talk about a way to save yourself some valuable time and money. This electrical box extension system is the answer you've been looking for.

Part #DescriptionDimensionsWeightPrice
AI-BE1Single Gang Box Extender2.313" L x 4.188" W x 1.813" H0.042 lb
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AI-BE2Dual Gang Box Extender4.1" L x 4.188" W x 1.813" H0.06 lb
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AI-BE33-Gang Box Extender6.4" L x 4.188" W x 1.813" H0.2 lb
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AI-BE44-Gang Box Extender8.0" L x 4.188" W x 1.813" H0.2 lb
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AI-BE1RCeiling Box Extender4.35" D x 1.5" H0.2 lb
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  • Levels and supports the wiring device where the box is set back from the wall surface
  • May be trimmed if necessary to accommodate your size specifications
  • If you are working with multiple gang boxes, simply trim off sidewall for each extender in the place where that sidewall would be between adjoining wiring devices
  • Compatible with all standard outlets, GFCI receptacles
  • Allows the electrical contractor to comply with 2002 NEC Article 314-20
  • 1-year manufacturer warranty
  • No interference with wiring so no trimming is required and the device mounts completely flush with the wall
  • CSA LR49636
  • UL E170558
diagram of BE1 and BE2 boxes diagram of ganged boxes
BE1 and BE2 Diagram Gang Layout Diagram


Part # # Gang Width
(Dim A)
(Dim B)
(Dim C)
AI-BE1 1 2.313" 4.188" 1.831
AI-BE2 2 4.100" 4.188" 1.831
AI-BE3 3 5.937" 4.188" 1.831
AI-BE4 4 7.749" 4.188" 1.831


Manufactured from non-conductive, 105° C continuous use, UL 94V/0 rated flame retardant material for safer installations







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Questions & Answers


is the Arlington 4 gang box extender compatible with A CARLON 64-cu in 4-Gang New Work Plastic Electrical Box? - is the Arlington 4 gang box extender compatible with A CARLON 64-cu in 4-Gang New Work Plastic Electrical Box?

Asked by Anonymous user on 08.09 AM Friday, 15 August, 2014

  • - Thank you for your question. While I don't have one here to compare them, it would seem from research that they are not compatible.

    Fernando M. on 09.36 AM Tuesday, 19 August, 2014

How do you extend up to 3 inches

Asked by Anonymous user on 08.18 PM Friday, 09 December, 2016

  • - This extender allows you to correct setbacks in the electrical boxes (due to thick dry wall for example) allowing you to add a flush face plate. We have placed videos on the page so it will be easy to view

    Anonymous user on 03.43 PM Friday, 17 February, 2017

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