The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Parking lot pole light swap....
by gfretwell
10/24/16 08:46 PM
International Wire Colour Codes
by Tjia1981
10/23/16 12:08 PM
Son of Sparky
by HotLine1
10/20/16 07:43 PM
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 14
HotLine1 7
ghost307 7
renosteinke 6
Potseal 4
Who's Online
0 registered (), 88 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#174485 - 02/05/08 06:25 PM Receptacle in drop ceiling?
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
I'm looking for the best method to install receptacles in the middle of a drop ceiling tile.
Caddy & B-Line have brackets to support 4" boxes, but if I install a tile-ring and receptacle, I think the force from inserting the plug will push the whole thing (t-grid and all) upward, resulting in a sloppy installation.

What do you all do?


Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#174486 - 02/05/08 06:42 PM Re: Receptacle in drop ceiling? [Re: Redsy]

Registered: 03/29/04
Posts: 252
Loc: Kingwood, TX USA
Go to HD or Lowes, get a 24 X 8 Laminated shelf. mount box in shelf, cut 8" off tile, install a cross tee. a few screws thru the frame holds it all in place.

#174489 - 02/05/08 07:58 PM Re: Receptacle in drop ceiling? [Re: Redsy]
Obsaleet Offline

Registered: 04/05/03
Posts: 361
Loc: Pa
Use a self taping screw throught the bracket to the grid. I don't know if it will work with the Caddy 512, as they may be hardened.

Choose your customers, don't let them choose you.

#174495 - 02/06/08 02:49 AM Re: Receptacle in drop ceiling? [Re: Obsaleet]
Roger Offline

Registered: 05/18/02
Posts: 1779
Loc: N.C.
I usually use 7/8" strut to mount the box on and secured the strut to the structure with 1/4" threaded rod.


#174499 - 02/06/08 05:07 AM Re: Receptacle in drop ceiling? [Re: Roger]
HotLine1 Offline


Registered: 04/03/02
Posts: 6792
Loc: Brick, NJ USA
I have used the Caddy with 1/4 rod to prevent upward movement when plugging in.

Ceiling grid is getting flimsier by the week.

#174508 - 02/06/08 07:47 AM Re: Receptacle in drop ceiling? [Re: HotLine1]
Gregtaylor Offline

Registered: 03/02/05
Posts: 212
Loc: Boise, Idaho, USA
I cut a piece of 3/8 plywood to the size of the ceiling tile. I put it right on top of the ceiling tile and use a 1" plaster ring on a 4" box supported by a Caddy 512. The plywood lends weight and stiffness to the whole thing. Keep in mind that ceiling plugs usually get 1 item plugged in and it stays there. They are rarely used as true convenience receps.

#174549 - 02/07/08 07:14 PM Re: Receptacle in drop ceiling? [Re: Redsy]
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Thanks for all your ideas guys!
I wondered if the grid was heavy enough to prevent upward movement.
I appreciate your input.


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals