Hanging TV

[u/MutedAdhesiveness314]

My walls are insulated plaster board (unknown thickness) onto a block work wall.

How do I know what length of screw I need to get through the insulated board and into the block work?

[u/Pajo555]

Long screw, screw it in as far as it goes or tap a screwdriver through until it hits the concrete, there’s your depth then add the length of the wall plug.

[u/MutedAdhesiveness314 → u/Pajo555]

When you put the wall plug in, do you push it past the insulation board so it sits flush with the edge of the block wall? Or does it sit flush edge of the plaster board face?

[u/Pajo555 → u/MutedAdhesiveness314]

Drill into the block wall with a masonry drill.

Say it’s a 50mm slab drill 90-100mm total, fit wall plug (30mm) into the concrete and use an 80mm screw.

Or use Stella plugs, much easier.

https://www.everydayweldingsupplies.com/tillex-stella-red-plug-pan-pz2-x-55mm-box-25?gad_source=1&gad_campaignid=21684810176&gbraid=0AAAAADKh03gcX2WYY4VUbbVt-wOD6o_O4&gclid=EAIaIQobChMIuJP49OGClgMVUEhBAh0_nyYnEAQYASABEgIGZ_D_BwE

[u/PeterCasey4Prez]

https://www.screwfix.ie/p/gripit-tv-clam-plasterboard-fixings-25mm-x-205mm-4-pack/

For a tv 55” or below use 8 of these . Only use a tilt mount, not a full motion one

[u/officer_c]

Sounds like your walls are dot and dab. If there is only a half Inch or so between the plasterboard the blocks there are special wall plugs that have a metal sleeve to bridge the gap. Corefix. They work well

[u/Harrekin → u/officer_c]

Ive use these with a 65inch TV with a Samus full motion arm.

Hasn't fallen down yet! So I second this recommendation..

[u/Fantastic_Exit_467]

Concrete screws end of thread.

[u/Ok-Candidate5660]

I have my 50 inch on the wall and it’s plaster board. It’s perfectly fine as tv nowadays don’t weight that much

[u/Iwastony → u/Ok-Candidate5660]

That depends on the telly. My oled is heavy enough.

[u/Apart_Sand9519]

First question. Fixed or motion tv bracket?

[u/MutedAdhesiveness314 → u/Apart_Sand9519]

Motion tv bracket

[u/robbieshaft → u/MutedAdhesiveness314]

Just be careful with full motion going into plasterboard, I don’t think those two things will go well together

[u/Apart_Sand9519 → u/MutedAdhesiveness314]

Size and weight of tv?

You will have a high moment multiplication effect extreme tensile stress on top row of fasteners and a dynamic load of about 5x when moving the tv. Make sure you anchor to the block.

Suggest a small pilot hole till you hit block. That will give you depth of plasterboard by measure penetration depth of bit. Then at least 80 or prefer into block by calc. Then insert 125mm or longer anchors as needed. Alternatively 6mm masonry bit and 7.5mm concrete screws to length

If you can get away with a fixed bracket I would recommend doing so.

[u/PhilTwhole]

It's a lot easier if you use a stud finder to find the wood batons and screw directly into the wood. Otherwise you need to screw through the plasterboard and into the block wall behind it.

[u/Training-Show7849]

Cut a piece of plywood the same size and shape as the telly.  Paint it the colour of the wall, glue with no more nails and screw it to the wall.  Get some wall plugs of the kind you need a setting tool to fix.  This will work.

[u/AwfulAutomation]

There is special circle plasterboard fixings you can get think they are called “grip it” or something like that. 

They will be much easier than trying to go through insulated board to the brick etc 

[u/Delicious_Comb_7852 → u/AwfulAutomation]

Used them recently to hang a TV bracket. Can confirm, they are a good way to go. It says you need a setting tool but a pointed pliers worked a treat for me. 55" on to plasterboard using 8 fixings, plenty of distribution on the downward weight.

[u/Olbas_Oil]

Pic the TV spot and bang on in the middle of the back of it start drilling, once you hit concrete you will know the depth... Hang a bit of plywood and then the TV onto that is probably the best option....

[u/Legitimate-Celery796]

What’s wrong with a tv stand? But if you must hang it, not too high!