Is there a junction box that can be anchored to gyproc?

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Posted by: from Calgary
7/27/2015 at 7:09:29 PM

We are replacing bathroom lights, and in '86 when these existing lights were installed there was no junction box, just a hole in the gyproc as the lighting fixture had a back plate on it. Now we want to replace the light with a fixture that has no backing plate, and there are no studs in the gyproc where we want the fixture to hang (same place as old fixture).

Is there a junction box that can be anchored to gyproc that is to code for Alberta??? Please help!

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Date/Time7/27/2015 at 8:08:16 PM

In BC you can obtain a device box called an EZ box in a variety of styles for retrofitting a box in gyproc. They have them for regular devices like outlets and switches as well as lighting junction boxes.

They have a clever design where you cut a slightly larger than average hole in the gyproc and there are wings the spread out as you tighten the box up, clamping into the gyproc.

The only frailty is that they can't take much weight so you couldn't hang a chandelier from them or anything, but a simple flush mounted fixture would be fine.

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Date/Time7/27/2015 at 9:00:30 PM

Hi Karen,

Kyle nailed it. Rework boxes are available at the big box stores. This is the link to the HD version


Pretty simple to use and they come with a template to follow to cut out the hole.

Good luck with it.

Jim Kuzma

Kettleby Handyman

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Robert from Electrilight Ltd. in Oakville
Date/Time7/27/2015 at 10:25:40 PM

Just a warning, do not use the octagon boxes with the "ears" and back clips. The amount of drywall you have to cut out to make them fit weaken the areas that support the boxes to the point that the light fixture may fall of if teh drywall breaks. Instead, cut a hole large enough for a regular octagon box or 2104 device box and add wood the inside of the drywall and screw it all to the drywall and boxes, then repair the drywall holes around the screws, repaint, hang fixture (that is the way a proper installation would be done), or call a pro and get them to do it for you.

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Dave from Nemco in Cambridge
Date/Time7/28/2015 at 12:03:31 PM

Robert definitely has it right. As a professional retrofit specialist as well as a master electrician, cut a regular size hole for an octagon box, insert the largest size piece of wood in that hole, secure it to the drywall multiple places, install your box then repair small screw heads, paint.

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Karen in Calgary
Date/Time7/28/2015 at 2:54:47 PM

Thankyou everyone for helping, it all helped, thank you....thank you and thank you...

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