Model # B618RR

Internet #100404072

Store SKU #339172

Carlon 1-Gang 18 cu. in. Round Old Work Ceiling Box


1-Gang 18 cu. in. Round Old Work Ceiling Box

  • PVC construction for durable performance
  • Includes swing clamps for easy installation
  • Not listed for fixture support in ceilings
$201 /each
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Product Overview

The Carlon 1-Gang 18 cu. in. round old work ceiling box is designed for use with non-metallic sheathed cable in accordance with Article 314 of the NEC. Great for residential and light commercial applications, the box is made of Polycarbonate, is listed for use with dry wall or sheet rock. The box is fire rated and UL listed for safety.

  • 1-gang electrical box houses an installed ceiling switch or receptacle
  • Not intended for fixture or support in ceilings
  • Thermoplastic construction resists rust and won't conduct electricity
  • Built-in cable clamps hold wires firmly in place
  • Mounting ears and swing clamps provide versatile installation options
  • Sized for standard devices and switches

Info & Guides

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Name 1-Gang 20 cu. in. New Work Ceiling Box with Captive Nails 1-Gang 18 cu. in. Round Old Work Ceiling Box 3-1/2 in. Hard Shell Old/New Work Ceiling Box 2-Gang 25 cu. in. Non-Metallic Old Work Switch and Outlet Box
Brand Carlon Carlon
Ratings (2) (12) (9) (10)
Number of Gangs 1 1 1 2
Number of Knockouts 0 0 0 1
Packaging Type Consumer Packaging Consumer Packaging Consumer Packaging Consumer Packaging
Trade Size (in.) Other Other Other Other
Material PVC Polycarbonate PVC PVC
Box Type Ceiling box Ceiling box Ceiling box Wall box
View Product View Product View Product View Product



Product Depth (in.)
Product Height (in.)
Product Width (in.)
Trade Size (in.)


Box Type
Ceiling box
Color Family
Electrical Product Type
Old Work
Number of Gangs
Number of Knockouts
Package Quantity
Packaging Type
Consumer Packaging
Power Distribution Features
Fire Rated
Product Weight (lb.)

Warranty / Certifications

Certifications and Listings
1-UL Listed
Manufacturer Warranty

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Customer Questions & Answers

If you do not recommend using a fixture with this box, what is the specific purpose of this box?

Asked by: DLdiy
Will it support a celing fan in a manufactured home when installed?
Answered by: munk
Date published: 2017-07-12

Can this box accommodate incoming and outgoing wires?

Asked by: Townhouse
Yes, hence the pop outs on both sides of the box, you ban run 2 lights in series, in with the main to light one and connect wires to the same incoming hot and ground the first light is screwed to and send the other two (Hot and Ground) out the other 2 pop outs on to the next box, viola, power 2 lights from same switch.
Answered by: Frenchy
Date published: 2017-05-02

Can this box come in contact with insulation

Can this box come in contact with insulation
Asked by: Bmar6670
Yes, that is one of the main purposes of the box, so wires can be run with insulation covering the box.
Answered by: Frenchy
Date published: 2017-05-02

Can this box be used to mount vanity lights on a wall where there was no previous light?

Asked by: TV
Answered by: gitzimomo
Date published: 2017-01-09
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Customer Reviews

1-Gang 18 cu. in. Round Old Work Ceiling Box is rated 4.7 out of 5 by 12.
Rated 5 out of 5 by from Took a Jab saw in this case to install as the original lighting as we came to discover was not to... Took a Jab saw in this case to install as the original lighting as we came to discover was not to code. I cut a 3.25 diameter hole to install these box's. I did need to cut 3 small notches in line with the swing out screw down holding wings. In brief, it took minimal effort (considering I cut the holes by hand). This job can be done by an intermediate skill level installer, just remember to (Turn off the power to the mounting area) and you'll do all right.
Date published: 2017-05-02
Rated 5 out of 5 by from Works great: 2 recommendations Worked great for sconces. I have 2 recommendations to users: #1 don't drill the 3x 1/2" holes 120 degrees apart, as the template describes. I did this for the first light and the 1/2" holes were very close to being visible around the base of my sconce. For the next 3 I cut the 4" hole with a hole saw, only, and didn't cut the 3x 1/2" holes. The old work box fit just fine (it was snug, but I actually preferred this). Recommendation #2: Tighten and loosen the 'ear-screws' once PRIOR to installation. Reason - the threads in the plastic ears are not pre-cut. I had issues with the ears/screws becoming cocked in a strange position behind the wall and would not tighten. This was because the screws were trying to cut the threads for the first time. If you pre tighten the screws (and then loosen them to the original position) before installation, it will make tightening and installing once in place very easy. I can tell you from experience that it is very frustrating having to remove the box from the wall because 1 ear became snagged/cocked and won't tighten. Once I learned from the first box and corrected the issues, the last 3 boxes were a breeze!
Date published: 2014-02-24
Rated 5 out of 5 by from Great to add light weight lighting to existing structure! I purchased three of these to hang some light weight simple pendant lights above our dining table. These are made for old construction. These normally come with a paper template shoved inside the box but this time there were none so I went on Carlon website and downloaded the template. I know I could get by without but I like the fact the template has points where you drill a 1/2" hole in 3 areas prior to cutting to compensate the extra space needed for the wings. It also ensures you don't end up with a larger hole than needed. After hole is cut you slide it up in place and with a philips screwdriver to tighten all 3 screws so the wings tighten to your substrate.
Date published: 2012-10-28
Rated 4 out of 5 by from Decent Option I am not a fan of the blue Carlon boxes in general, but there are not a lot of simple alternatives to this box is some situations, and it works fine. The old work boxes with flippers are just about the easiest to install in drywall, and there's not many ceiling boxes with them available, that I know of. It is certainly not rated to hang a ceiling fan from, and do not try that in any way, shape or form! Good for lightweight fixtures and smoke detectors, where allowed by code.
Date published: 2014-04-25
Rated 5 out of 5 by from Use to install new track lighting Installed some track lighting in an existing ceiling. Great for 'old work' installs. Make sure there isn't a stud or obstruction in the area, cut the hole & place it in the ceiling. The three screw tabs secure it to the sheetrock.
Date published: 2013-11-20
Rated 5 out of 5 by from easy to use and locate for simple wiring jobs that need a circular box on the wall or ceiling. s... easy to use and locate for simple wiring jobs that need a circular box on the wall or ceiling. simply cut a round hole to install.
Date published: 2017-01-09
Rated 5 out of 5 by from steardy box these boxes are good for remodels & they are a simple fix if you need a box where you already have wires some older houses lack any boxes at all these fit the bill make sure what material you are using them in because the mounting tabs are only good for about 1" thick or less they do have screw holes but i have found that you need to screw at an angle to find some thing to hold (this is only good for a last resort) carlon is good quality i have been very happy with most of their products & customer support through their website
Date published: 2010-02-23
Rated 5 out of 5 by from ceiling box Box Work Great, and it does not have cheap tabs on it as other peaple think, its made to code and you dont need the tabs to be heavy duty, this product is made to hold a good size lamp (and not your self) remember its going on sheet rock not on anything super solid.
Date published: 2013-07-06
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