Flat screen on a drywall

IrishB.ie

Hi folks, looking for any experienced advice.

The better half want a 42" flat screen TV installed in the bedroom ( for soaps and nothing else).

Anyway, my issue is that the wall is an internal wall and is constructed of
3 sheets of plasterboard 'plastered together'.

I don't think 'plugs 'n screws' will hold a TV of this weight.

How can I do this without fear of the TV hitting the floor at some stage?

The wall back's onto another room in the house (obviously).

TV is an LG42PJ350 with a weight of 20 kg.

Thanks.

Mr.Boots

A few of these bad boys will do it

lovehathi

hi i bought an wall mount from amazon i think cheetah, locate stud it will be best for u and screw nail in there.

mickdw

Is it a timber stud wall? I doubt understand what you mean by a wall of just 3 plasterboard slabs

the_pen_turner

are you sure its 3 sheets stuck together.
did you do that your self.

what is behind the "wall" , is there a press or anything that could cover a few through bolts


how about hanging it from the ceiling joists. then the "wall" would only be keeping it steady rather than holding the weight

the_pen_turner

are you sure its 3 sheets stuck together.
did you do that your self.

what is behind the "wall" , is there a press or anything that could cover a few through bolts


how about hanging it from the ceiling joists. then the "wall" would only be keeping it steady rather than holding the weight

Hal1

Anchor bolts work very well.

DublinDilbert

IrishB.ie wrote: »

Anyway, my issue is that the wall is an internal wall and is constructed of
3 sheets of plasterboard 'plastered together'.

.

Is it an Acorn pre-fabricated panel wall? usually about 2.5" thick?

bmwguy

Mr.Boots wrote: »

A few of these bad boys will do it

I concur with Mr Boots I have used those plasterboard fixings with many things in my house, including a tv and nothing has fallen down yet, and nothing will. Just make sure you don't hit the stud behind the plaster though but if you do you can either replaster and repaint and just fit somewhere else or the tv bracket will hide it.

livingthedream

bmwguy wrote: »

I concur with Mr Boots I have used those plasterboard fixings with many things in my house, including a tv and nothing has fallen down yet, and nothing will. Just make sure you don't hit the stud behind the plaster though but if you do you can either replaster and repaint and just fit somewhere else or the tv bracket will hide it.

+1 for me too.

I have a 42" TV mounted on the wall in my bedroom.
I think I used 6 of them tobesuretobesure!! (Overkill for their rated weights).

~S.

Hal1

All the upstairs rads in our house are hung using those screws in fixings. So they would also work out for the tv I'm sure, as a rad is a lot heavier than a tv.

the_pen_turner

Hal1 wrote: »

All the upstairs rads in our house are hung using those screws in fixings. So they would also work out for the tv I'm sure, as a rad is a lot heavier than a tv.

toggle bolts would be fine but not ideal. you really should have some legs on it

those worm screws are useless for this kind of work. if it is put up with these I would be getting back the plumber to do it right. sooner or later it will fail

Stoned Since 2011

Mr.Boots wrote: »

A few of these bad boys will do it

No they wont.

Mr.Boots

Stoned Since 2011 wrote: »

No they wont.

Just out of interest, what do you suggest?
Those fixing are rated to 10kg, it would be better to go into studs but not always feasible, hence the need for screws like this. But I'm no expert so I'd love to know a better alternative

Man11

Get 2 length of timber , fix them to the studs , the attach wall brackets to timber . Works fine then

Stoned Since 2011

Mr.Boots wrote: »

Just out of interest, what do you suggest?
Those fixing are rated to 10kg, it would be better to go into studs but not always feasible, hence the need for screws like this. But I'm no expert so I'd love to know a better alternative

10kgs how are you, 1 if you are lucky. What I suggest is fix it to what is behind this illusive 3 sheets of plasterboards.

mickdw

Stoned Since 2011 wrote: »

10kgs how are you, 1 if you are lucky. What I suggest is fix it to what is behind this illusive 3 sheets of plasterboards.

They will likely do the 10 kg when force is directly downward at the face of the board. If for example a load was applying a force tilting the fixing in the board, it would be useless.

the_pen_turner

i have never seen any of those fixings rated for any weight. 10 kgs is very heavy, I woulnt put 1 kg on several of those

Stoned Since 2011

mickdw wrote: »

They will likely do the 10 kg when force is directly downward at the face of the board. If for example a load was applying a force tilting the fixing in the board, it would be useless.

Book fed education, the real world is very different.

dunworth1

Hal1 wrote:

Anchor bolts work very well.

I have these holding up my 50in currently.

They also had no trouble holding my old 42in plasma

mickdw

Stoned Since 2011 wrote: »

Book fed education, the real world is very different.

What an idiotic comment. I didn't say they were suitable but used in the correct situation they will likely carry the 10kg.
Example- if you fix one to wall and hang 10 kg off it, you will pull it out of the wall. If on the other hand you fixed 2 of them maybe 150mm apart one above the other, connected by a rigid metal plate and hung 20k off it, it would hold as if fixed through the plate, it would be considerably more difficult for the actual fixing to start to tilt in the wall. I'm then talking about loadings at the face of the wall. I'm not suggesting a swing out tv stand.

Stoned Since 2011

Are you stoned Mick, lol 20kg now.

Bruthal

bmwguy wrote: »

I concur with Mr Boots I have used those plasterboard fixings with many things in my house, including a tv and nothing has fallen down yet, and nothing will. Just make sure you don't hit the stud behind the plaster though but if you do you can either replaster and repaint and just fit somewhere else or the tv bracket will hide it.

Only diy enthusiasts would install a TV bracket with them yokes and think it's a job well done. And if you did happen to hit a stud, surely even the diy man would simply use a decent size wood screw into the stud, not just put the worm fixing somewhere else to avoid the stud.

Bruthal

Mr.Boots wrote: »

Just out of interest, what do you suggest?
Those fixing are rated to 10kg, it would be better to go into studs but not always feasible, hence the need for screws like this. But I'm no expert so I'd love to know a better alternative

Find the studs. And fix to them. If its a large TV mounted flat to the wall, find 2 or more studs the bracket fixing crosses on the wall. And fix into them.

fred funk }{

Cut a piece of plywood and screw it to the studs. Paint the ply same colour as wall, then screw TV bracket to the ply. I have always done it that way.

ted1

Is there really no stud in the wall? If it's seriously just three sheets stuck together then wall anchors won't work unless they pop out the other side.
If you could find a stud them use coach screws, I got a bracket that spans 2 studs, there's no budging that bad boy.

Remember while some dryboard fittings may be rated as a heavy load , the dry wall might be

You will also want t drop the cables into the wall. So no harm in cutting a section out and having a peep around for a stud

dodzy

mickdw wrote: »

Is it a timber stud wall? I doubt understand what you mean by a wall of just 3 plasterboard slabs

Have seen these "multi- slabs" in houses before. Weird alright, but they are pretty solid considering the absence of studs. Toggles will not work in this situation as they have to pierce right through the surface. The linked fitting by Mr.Boots - I bloody detest them, in any situation as they butcher any surface they come into contact with.

If the intended TV is a new(ish) model LED, then there is very little weight involved. Also, it would be better to fit a fixed(non swivel cantilever type) bracket putting the TV as close to the wall as possible. If this is your intention, then I would just use 6-8 regular plastic rawlplugs and appropriate screws. You'll be fine.

chriscon

Looking to hang 55" plasma on extending bracket. Here is the issue. House is timber frame. Stud finder cant find any studs. Plan was plywood sheet fixed to studs then tv mount.
Is the plaster board tacked directly to the studs?

Man11

chriscon wrote: »

Looking to hang 55" plasma on extending bracket. Here is the issue. House is timber frame. Stud finder cant find any studs. Plan was plywood sheet fixed to studs then tv mount.
Is the plaster board tacked directly to the studs?

Yes,take a small bit of the slab off where your are going to hang the tv . Locate studs , usually 3by2 timber studs. Work out the distance between studs, it us to be every 14 to 16 inches apart I think . Then put up plywood

ted1

chriscon wrote: »

Looking to hang 55" plasma on extending bracket. Here is the issue. House is timber frame. Stud finder cant find any studs. Plan was plywood sheet fixed to studs then tv mount.
Is the plaster board tacked directly to the studs?

Is there a socket below where you want to hang it ? Pop it off and you like find the stud or get a sharp thin screwdriver / nail or similar and poke holes in the wall till you find a stud, the telly will hide the holes

Or cut a small hole and use a wire hanger to find the studs, you can use the hole to drop wires through the wall

Stoned Since 2011

ted1 wrote: »

Is there a socket below where you want to hang it ? Pop it off and you like find the stud or get a sharp thin screwdriver / nail or similar and poke holes in the wall till you find a stud, the telly will hide the holes

Poking holes in the wall, that is rough carry on.

Steve

chriscon wrote: »

Stud finder cant find any studs.

Well then, assuming it's actually a stud wall, not dab on brick, there are either no studs or your studfinder is broken / needs new batteries.

My guess is you need a new studfinder.

ted1

Stoned Since 2011 wrote: »

Poking holes in the wall, that is rough carry on.

Tiny tiny wholes aren't noticeable and will be covered by the TV

DublinDilbert

Tiny holes work fine and will be covered by the TV.

The other trick is get a few small strong magnets. Tie a piece of string to them and go over the wall, they should find the nails/screws in the stud and stick to them.

DublinDilbert

Tiny holes work fine and will be covered by the TV.

The other trick is get a few small strong magnets. Tie a piece of string to them and go over the wall, they should find the nails/screws in the stud and stick to them.

chriscon

Update: took of a wall socket and had a look behind. There are horizontal Battens that I think are nailed to the vertical studs. Anybody know the centre spacing for these

Man11

If its timber studs , should be about 16 inches apart give or take an inch , vertical ones

chriscon

It's the horizontal centres I'm looking for. I think it's 16" aswell but not 100%.

The vertical (normal) studs are behind the horizontal studs with a vapor sheet between them.

mickdw

chriscon wrote: »

It's the horizontal centres I'm looking for. I think it's 16" aswell but not 100%.

The vertical (normal) studs are behind the horizontal studs with a vapor sheet between them.

Ah now I get ya.
It appears you have a counter battened wall. Is this an internal partition or is it the inside of an outer wall. I'd imagine it's an outer wall given that build up.
Those should be at 400 mm centres too.

chriscon

Yea it's on an outer wall. Would the counter battens be able to hold a tv or would it be better to go through them into a stud

Man11

Ah it should do od say

Seve OB

If you are going up against the outer wall well what about going for these

http://www.ie.screwfix.com/fischer-stainless-steel-hammer-fixings-x-100mm-pack-of-10.html

I bought a bunch of them only the other day for €0.50 in the local builders providers. They will go right through the plasterboard, the cavity and into the concrete wall to give you a good secure fixing.

I am putting some shelves up (I'll get round to it at some stage ) and this is what the guy recommended. Don't see why they wouldn't do the job for yourself also.