Most electrical boxes are attached to a stud before the drywall is even installed. When you add a new box to an old wall, we always try to put it in right next to a stud for solid attachment. Specialized hardware does exist to allow putting an electrical outlet or switch absolutely anywhere without reference to a stud.
All these items are generally referred to as ReWork boxes -- boxes to be installed after the initial construction has passed. Some people tell me thay have problems locating them, but I have found one or more of them at most renovation centres. Looking at most of them on the store shelves you can be at a loss trying to understand how to make them work. Here you see the details, on both sides of the wall.
When putting thick wall coverings over existing walls, like another layer of drywall or foam insulation, extender sleeves keep the wires properly protected without moving the existing box.
For still photos of all of this click here.
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Very helpful. You might want to remind folks that if there is an electrical cable feed already snaked through the wall cavity, to pull from the wall cavity into the box and clamp it before you sock down the box to the wall opening.
Thank you so much. This gave me all the answers I needed!!! I suggest you upload this on YouTube for easy access.
Thank you for taking the time to record this information. Very helpful and will definitely be a solution. Thanks again!
Thank you. Very good video. Now I now my options.
Great video! Saved me a ton of time!
I found this to be a very useful video. Thanks very much for posting it.
Hi. I really like your video and tips on "Electrical Boxes with no Studs". Where can you get those cool junction box brackets that you demo'd. I can't see to find them online.
Hello Bartel,
Of all surprises, try the renovation centres.
--- Jon
where do I buy the special Hardware shown in twechnique #1. what are the metal tab plates called? thank you.
Hello Mark,
The "Box Hangers", made by Iberville in Canada, are available in all hardware stores in the electrical department.
--- Jon
Where can I find the bracket in this demonstration with the foldable tabs to do this. I went my local HD and Lowes and they do not stock.
Here they are at Rona:
http://www.rona.ca/webapp/wcs/stores/servlet/RonaAjaxCatalogSearchView?storeId=10151&catalogId=10051&langId=-1&resultCatEntryType=2&searchKey=RonaEN&content=&keywords=electrical+box+accessories
Excellent video. Thanks for the explanation. My wife will be thrilled that I'm replacing the box that has started coming away from the wall.
Where can I find these boxes? Can't get them at Home Depot.
Hello Will,
Actually if you dig into the Home Depot website -- about page 10 of 30 pages of "electrical boxes", you will find a variety of "no stud" boxes. They are calling them boxes with "old work clips" or "plaster ears" -- their way of saying "no stud". Rona is the same story -- dig through the web.
-- Jon
I can't tell you how helpful this is. Thank you!
-R
Hi Jon,
Thanks for the clear video.
FYI, in Canada, T&B makes the third box (at the 2.22 mark of the video) as Iberville BC777-LRB (http://www.tnb.ca/en/web-catalogue/?co=CA&ca=can&lang=en&a=nav&N=&Ntt=BC777-LRB%20) with "... pivoting ends for rework installation." The ends refer to the top and bottom of the box. You do not need to cut slots for the screws to make the box fit into the wall opening. If you look carefully the box ends are designed to pivot into the box. First remove the two non-metallic sheathed (NM) clamps; this allows the ends to pivot at the front edges into the box. The box can be slipped into a slightly smaller opening than you needed to cut. This will give you more “purchase” to the drywall after it is installed. The two ends, when fully pivoted, leave a small horizontal space between the ends at the middle of the box. Remove the appropriate knockout and bring the cable into the box. Once the cable is in the box, you can use this opening to secure a wire in the cable, part of the cable sheath or electrical tape around the cable from inside the box to inside the room. This helps you not lose the cable, especially if they come from below, while pushing the box into the wall opening. Now careful pivot the ends and tighten the four screws that clamp the box to the drywall (max. wall thickness of 1⅛”). Pull the required cable length into the box and reinstall both NM clamps to secure the cable. As an alternate to the NM clamps, you can use an appropriate cable connector and the ½” knockout at the back of the box to secure the cable.
Hope that helps, Burt
Thank Jon,
Excellent
This is great, exactly what I was looking for and very nicely explained.
It would really help if you actually gave us the name of the brackets/devices you used. I am trying to get some of those 2 piece tab brackets(first one in the video) and no one knows what I am talking about.
Hello Paul,
They are called "Box Hangers", made by Iberville in Canada. Take a photo of the video and show it to the store clerk. A picture is worth a thousand words. Actually most renovation centre clerks have no idea what those things are for or how to use them even though they are on most of the store shelves.
-- Jon
How do I fix on what has been pulled out?
Hello Melisa,
If there is a lot of damage to the drywall, you may have to fix it first, then use the special boxes. See the video in this series on fixing large holes.
-- Jon
Thank you for the great video. Very informative and helpful for us DIY "weekend warriors" types. Off to the local hardware store for the necessary parts :-)
Excellent - much thanks for taking the time to do a nice explanatory video!
I believe that the only way to install a double gang box without a stud is with the fold back tabs you see in the photo above.
Thanks for this.
Great video! Question - do they make these types of boxes to accommodate 2 switches? I could find anything on some of the retailers sites.
Hello Bansi,
An ordinary light fixture that is not too heavy can be installed with these types of attachments.
If it is a heavier ceiling light fixture then you need to go to the larger octogonal boxes and if it has a heavy glass covering you will need more support. In this case, you can go between the studs using the same king of structural bracket that is made for holding ceiling fans. This could also be used on a wall to hole a heavier fixture. Follow this link for all the details.
jon
Thank you it wiil be very usefull for me,but can you let me know for washroom wall,my house is three year old and there is no stud in centre to put new light fixture.Thanks
All these types work and the best tip was the 3rd demonstration. It will only work if you make slots in the drywall for the for screws, becuse it is such a tight fit. Also the spring loaded box, it not work very good to other wall thickness that is less than half inch drywall like panel board that is a quarter inch.