Have to hang a TV on a plasterboard wall, will this do?

okidoki987 · 29-01-2021 07:45PM #1

Have to move a 40" TV onto a plasterboard wall but there's nothing to attach it to behind the wall as it's small in width and TV needs to hang in middle.
I'm putting TV on a single extendable arm, tilt and swivel bracket so will have just 4 holes for wallplugs.
I have these plugs which say they support up to 35kg on a hollow wall, TV weighs 7.5kg, would I be safe enough just using 4 of these to hang the bracket, also have toggle bolts?
Don't really want to have to put up a support board onto the wall if I can get away with it.

https://ibb.co/j3QHxLf

grounderfill · 29-01-2021 07:52PM

Not worth risking it. The plasterboard would need to be opened up, reinforced with a timber bracket or a plywood panel then resealed.

Bonzo Delaney · 29-01-2021 07:52PM

okidoki987 wrote: »

Have to move a 40" TV onto a plasterboard wall but there's nothing to attach it to behind the wall as it's small in width and TV needs to hang in middle.
I'm putting TV on a single extendable arm, tilt and swivel bracket so will have just 4 holes for wallplugs.
I have these plugs which say they support up to 35kg on a hollow wall, TV weighs 7.5kg, would I be safe enough just using 4 of these to hang the bracket, also have toggle bolts?
Don't really want to have to put up a support board onto the wall if I can get away with it.

https://ibb.co/j3QHxLf

If its an extend and tilt arm you'll need decent grounds behind the plasterboard no other way around it.

Probably be able to cut out a section of the plasterboard 10 mm smaller than the wall bracket and get ply in to the area fix that in place, refit the plasterboard over the ply then fit the bracket through the plasterboard in to the 18mm ply

greasepalm · 29-01-2021 08:00PM

If tv is big anchor a bigger wooden panel if you can find the batons behind you can secure it to that.I dont have luxury plasterboard but compressed cardboard.40" panny on a double expanding arm and no issues.

mickdw · 29-01-2021 08:07PM

The fact you are putting it on an extending arm means there will be an outward pulling force on the top top fixings while the tv is in the extended position. The plugs you have would be nowhere near good enough - they would probably hold it for a short while but will eventually fail.

PsychoPete · 29-01-2021 08:10PM

I have one TV on a wall that's just timber studs and pasterboard. I found the timber studs in the wall and l put the bracket onto those. I wouldn't chance those kind of fixings

okidoki987 · 29-01-2021 11:26PM

Unfortunately no studs/batons due to where I need to fix the television.
Really don't want to have to cut out the plasterboard.
Assume no point in trying Gripit's as they do the same as the toggle bolts so no advantage?

Pataman · 30-01-2021 01:20AM

okidoki987 wrote: »

Unfortunately no studs/batons due to where I need to fix the television.
Really don't want to have to cut out the plasterboard.
Assume no point in trying Gripit's as they do the same as the toggle bolts so no advantage?

Really?
There should be a stud every 16"

WildCardDoW · 30-01-2021 01:42AM

Yeah it'd be weird to have no studs.

It seems like youll need to expose the wall and put in bridging pieces between whatever studs are there.

the_pen_turner · 30-01-2021 01:50AM

almost guaranteed it would fall off the wall. .
even the best plasterboard fixings are only as strong as the plasterboard. some can hold a huge weight but only if the slab is dry and no one pulls on it etc. there has to be something behind it. cut it out and put in a stud, bridger ect. if there is concrete behind then fix to that

Calahonda52 · 30-01-2021 09:11AM

Pataman wrote: »

Really?
There should be a stud every 16"

could be just dabbed.
The other idea is to use express nails, assuming its concrete behind
https://www.topline.ie/tools-hardware/nails-screws-fixings/nails/masonry-nails/easi-fix/express-nail-100-pack

with self tappers in the hole.

its well documented here by me and others, you drive the express nail till its flush with the PB, allow 60mm of the nail in the wall, I generally use either 10 or 12 mm and then long self tappers, with a hex or cup head, into the hole.

does not need to be stainless the link is just the idea
https://eshop.wurth.ie/Product-categories/pias-stainless-steel-A2-plain-flat-head-AW/31123502020104.cyid/3112.cgid/en/GB/EUR/?pk_source=google&pk_medium=cpc&pk_campaign=103_Core-Products_Metal&pk_content=AllVersions_TEK_Screws_B&pk_kwd=tek%20screws&pk_cid=1755985628&gclid=CjwKCAiApNSABhAlEiwANuR9YCtWJ73BTIFNj0Fm0lwAbjhTfQ7xeVnKUCnbC4AoJftYGPfKeVTaSxoC7pkQAvD_BwE

Bonzo Delaney · 30-01-2021 09:22AM

Calahonda52 wrote: »

could be just dabbed.
The other idea is to use express nails, assuming its concrete behind
https://www.topline.ie/tools-hardware/nails-screws-fixings/nails/masonry-nails/easi-fix/express-nail-100-pack

with self tappers in the hole.

its well documented here by me and others, you drive the express nail till its flush with the PB, allow 60mm of the nail in the wall, I generally use either 10 or 12 mm and then long self tappers, with a hex or cup head, into the hole.

does not need to be stainless the link is just the idea
https://eshop.wurth.ie/Product-categories/pias-stainless-steel-A2-plain-flat-head-AW/31123502020104.cyid/3112.cgid/en/GB/EUR/?pk_source=google&pk_medium=cpc&pk_campaign=103_Core-Products_Metal&pk_content=AllVersions_TEK_Screws_B&pk_kwd=tek%20screws&pk_cid=1755985628&gclid=CjwKCAiApNSABhAlEiwANuR9YCtWJ73BTIFNj0Fm0lwAbjhTfQ7xeVnKUCnbC4AoJftYGPfKeVTaSxoC7pkQAvD_BwE

Just to add to Cal's solution, when buying the fixings have both components in your hands and make sure the screw gets a grip to "Thread" in to the express nail.
Some times I've inserted a 6mm rawlplug in to the 8mm express nail to take a normal wood screw .

The reason the express nail is left flush with the plasterboard is to ack like a washer and prevent the plasterboard from collapsing in.

emeldc · 30-01-2021 09:46AM

Google screwfix easyfix hollow wall anchors.
Make sure you use the right size drill bit. I’ve used them loads of times. They work. I can’t post the link for some reason.

Malcomex · 30-01-2021 09:52AM

emeldc wrote: »

Google screwfix easyfix hollow wall anchors.
Make sure you use the right size drill bit. I’ve used them loads of times. They work. I can’t post the link for some reason.

Still no good for that job

JaCrispy · 30-01-2021 09:54AM

Get yourself a stud detector. There has to be studs there, otherwise what holds in the plasterboard?

yaknowski · 30-01-2021 10:00AM

I've tried various wall anchors over the years, including the hollow and threaded ones. Could be just me but found them awkward enough, either they'd bend a bit when I'd tap them in or they wouldn't sit flush.

Found these recently, https://www.gripitfixings.co.uk/ and hung a 20kg mirror up with very little fuss.
Was very neat and easy to use. Bought a drill bit (a flat wood one in this case as B&Q didn't have an 18mm round hole bit) and had the mirror up in a few mins. I used masking tape for measuring the template for the holes etc.

Saw them in B&Q in Liffey Valley, but they only had the red ones.

Looks like they have an all you need kit!
https://www.gripitfixings.co.uk/products/tv-kit

purple hands · 30-01-2021 10:12AM

JaCrispy wrote: »

Get yourself a stud detector. There has to be studs there, otherwise what holds in the plasterboard?

Any recommendations? Thanks

Malcomex · 30-01-2021 10:26AM

purple hands wrote: »

Any recommendations? Thanks

A narrow bladed screwdriver and a tape measure

chooseusername · 30-01-2021 11:02AM

yaknowski wrote: »

I've tried various wall anchors over the years,

Found these recently, https://www.gripitfixings.co.uk/ and hung a 20kg mirror up with very little fuss.

https://www.gripitfixings.co.uk/products/tv-kit

A mirror flat to the wall has very different stresses on the fixings
compared to an extending television bracket

emeldc · 30-01-2021 12:05PM

Malcomex wrote: »

Still no good for that job

Both of my Tv’s are hanging with them. I also have a 6’ iron vertical radiator hanging with them. Maybe it’s how you’re using them.

fred funk }{ · 30-01-2021 12:12PM

Toggle bolts are your friend here. Look up the strength tests on YouTube.

https://youtu.be/lHb-Tcvkn7M

Malcomex · 30-01-2021 12:21PM

fred funk }{ wrote: »

Toggle bolts are your friend here. Look up the strength tests on YouTube.

https://youtu.be/lHb-Tcvkn7M

He's hanging a 40" tv on a swingarm

How is anyone realistically suggesting the slab will hold it?

The mind boggle sometimes

Now maybe it will sit there until disturbed but that's not what you'd call safe

mickdw · 30-01-2021 12:23PM

emeldc wrote: »

Both of my Tv’s are hanging with them. I also have a 6’ iron vertical radiator hanging with them. Maybe it’s how you’re using them.

Have you an extrnded arm tv hanging with them?
Any of these fixing are limited by the strength of the plasterboard itself so while loads of these type of fixings are great for close hung items where the major force is directly downward and therefore a fair bit of strenth in the plasterboard,
For something like a tv on an extending arm, the plasterboard is never going to be strong enough. So regsrdless of how skillfully you use the fixing, even if you could spread the load to say a 400mm x 400mm section of plasterboard, it would eventually fail, fixing intact but a section of wall coming with it.
I would always test an extending tv bracket by partially putting my weight onto it at the extended position.

salmocab · 30-01-2021 12:29PM

mickdw wrote: »

Have you an extrnded arm tv hanging with them?
Any of these fixing are limited by the strength of the plasterboard itself so while loads of these type of fixings are great for close hung items where the major force is directly downward and therefore a fair bit of strenth in the plasterboard,
For something like a tv on an extending arm, the plasterboard is never going to be strong enough. So regsrdless of how skillfully you use the fixing, even if you could spread the load to say a 400mm x 400mm section of plasterboard, it would eventually fail, fixing intact but a section of wall coming with it.
I would always test an extending tv bracket by partially putting my weight onto it at the extended position.

This is it, it’s not the strength of the fittings it’s the strength of the plasterboard. Hanging anything on a swing arm will put massive pressure on the plasterboard at the top of the bracket. I wouldn’t put an expensive tv there. Chances are when it comes down the fixing will be fine and there will be an inch wide hole in the wall where the fixings had been.

Idbatterim · 30-01-2021 12:31PM

I'd use concrete screws, drill and then just screw into the block behind the plaster plasterboard, .. theres no weight in the tv..

salmocab · 30-01-2021 12:33PM

Idbatterim wrote: »

I'd put concrete screws into the block behind the plaster plasterboard, .. theres no weight in the tv..

Pick up your tv and hold it to your chest, then hold it outstretched with your arms extended. You’ll find it’s quite heavy.

Idbatterim · 30-01-2021 12:36PM

salmocab wrote: »

Pick up your tv and hold it to your chest, then hold it outstretched with your arms extended. You’ll find it’s quite heavy.

Sorry I agree. I mean in general its very little weight though. I've used concrete screws for all my recent tv hanging jobs, ridiculous strength compared to what's included in the tv bracket box they give you. Very easy to install and the screws cost about 15c each...

salmocab · 30-01-2021 12:37PM

The op didn’t mention concrete behind the plasterboard so I think we can take it there’s none and he specifically said it will be on a swing arm which will mean far more stress on the fixings.

emeldc · 30-01-2021 12:38PM

Malcomex wrote: »

He's hanging a 40" tv on a swingarm

How is anyone realistically suggesting the slab will hold it?

The mind boggle sometimes

Now maybe it will sit there until disturbed but that's not what you'd call safe

Yep, on a swinging arm. Just trying to help. Crack on.

FileNotFound · 30-01-2021 12:39PM

Stud wall - find the stud.

Conctete behind insulated plasterboard - decent length bolt - assuming either pb or insulated pb

Have em hanging in my own house.

mloc123 · 30-01-2021 02:01PM

JaCrispy wrote: »

Get yourself a stud detector. There has to be studs there, otherwise what holds in the plasterboard?

Depends when the house was built... Older (70s and 80s) houses tended to have the plasterboard dabbed on to concrete walls

Have to hang a TV on a plasterboard wall, will this do?

Comments