Knockout box in to plaster board

[Sbrem]

Hi we just stripped out spare room of plaster back to the lathe we are going to put some plasterboard over it, but were wondering if we can use a standard metal knockout box to sink the existing plug sockets in or should it be a different material? Any help would be amazing! Thanks

 

[Taylortwocities]

Whack out a big hole in the laths where the socket will be.
Over board with plasterboard.

Cut hole in plasterboard and fit a dry-lining mounting box. Its made for the job!

http://www.screwfix.com/p/appleby-2g-dry-lining-box/36960

 

[SimonH2]

Or if you can, fit a noggin between two studs and screw your standard box to that. You need to be very accurate cutting out a hole in the board or you end up with a difficult gap to fill when plastering.

 

[PrenticeBoyofDerry]

Or cut out and fit a noggin across the stud in the right position to fit the metal box, prior to boarding over.
Or just rip all the lathe down and do a proper job of it.

 

[Lectrician]

I'd get rid of the lathes too. That's easy and clean compared to the plaster! Then noggin and metal box.

 

[securespark]

Noggin The Nog!

 

[ban-all-sheds]

You need to be very accurate cutting out a hole in the board or you end up with a difficult gap to fill when plastering.

Make sure the noggin has a bit of tolerance, and cut the hole in the board after it's up.

 

[ban-all-sheds]

Noggin The Nog!

Isn't that practice, along with Muffin the Mule, likely to get you put on a register these days?

 

[SimonH2]

Isn't that practice, along with Muffin the Mule, likely to get you put on a register these days?

That's nothing to what they talk about in the plumbing section - the things they do with nipples and flanges (just for starters)

 

[maltaron]

Simple way to mark the plasterboard for socket holes: fit metal boxes to solid noggins, offer up the plasterboard to final position and belt the plasterboard over the sockets with a block of wood and a hammer, take away the plasterboard and you will have an accurate mark on the back.

 

[SimonH2]

See also http://www.yoozybox.co.uk/lids - with pips to do the marking without as much force.

But it does depend on the people applying the board actually caring about the hole actually approximating the size/position of the box !

 

[securespark]

the things they do with nipples and flanges

I know you grease nipples.... ...what on earth do you do to flanges....

 

[ban-all-sheds]

You tighten nuts onto them, of course, as any fule kno.

 

[PrenticeBoyofDerry]

Simple way to mark the plasterboard for socket holes: fit metal boxes to solid noggins, offer up the plasterboard to final position and belt the plasterboard over the sockets with a block of wood and a hammer, take away the plasterboard and you will have an accurate mark on the back.

I would also brush a little water around the edged of the backbox prior to performing the above tasks, makes the markings clearer.
You don't want to over hit it though and bruise the board or the hole edge and just start to crumble once cut.
Once marked, use a stanley knife and a drywall saw for accurate cut.

 

[ban-all-sheds]

That's nothing to what they talk about in the plumbing section - the things they do with nipples and flanges (just for starters)

They pack their glands as well, don't they?

And install traps in toilets.