TV Mounting onto plasterboard walls ?

I would have thought that sleeve anchors[1] would be fine for a load like that. Its probably quite close to the wall, so most of the load will be in shear anyway.

Being a cheapskate, I use .at less than half the price,

And instruct people not to try and adjust it once fitted.

You haven't seen my sister.

Most replies here are saying that it's OK to use this fixing or that fixing, but I've a feeling they're missing the (major) point in that they are fixing to a plasterboard stud wall, and yours are not stud walls.

Your walls are built with two sheets of PB stood upright with basically a giant eggbox keeping them apart, and no timber or metal struts are used for rigidity. A stud wall has (usually timber, but more recently, box aluminium) struts running up and down and also across - this gives the wall much more strength, and using PB fixings here is usually OK because each fixing will generally be no more than 6 inches away from one or more of these strengthening studs, meaning the sheet of PB being fixed to is firmly fixed to something else and it cannot (easily) come apart - I would not fix anything to these walls heavier than half a pound, and a 25lb TV is totally out of the question.

That's exactly what we had in our previous house, Paramount partition board. The speakers must have been there for about 20 years with no problems.

... with a studs only 12 inches apart ?

Your speakers were 8kg? - his telly is 12kg and will probably get handled a lot more than hi-fi speakers, cleaning, adjustments etc.

No, the studs are usually 16 inch centres, meaning that unless you fix directly in the centre of studding, which is highly unlikely and you would be seven inches away,(the studs are normally 2 inches) anywhere else at all and you would be six inches or less from a studding.

Yes, but he has 4 screws for the TV and I had 2 screws for each 8Kg speaker.

Obviously it would be wise to confirm that the bracket feels secure enough before entrusting it to the full load. If repeated handling has any effect then it's likely to show up as a gradual loosening in time to take remedial action. I think it's extremely unlikely that it would lead to catastrophic failure.

The telly (15" Sony CRT) in our bedroom is mounted on a bracket, that was originally fastened just to the plasterboard. After a while I noticed that the p'board was "ballooning" outwards round the bracket... I screwed a piece of plywood to the studs and screwed the bracket to that, instead.

Absolutely NOT if its CRT .. i've had issues into solid brock...

rip away part of the wall and put floor to ceiling studs, a plate beteeen and add plasterbaord over: skim and re-paint..

What's on the other side of the wall? I mounted an LCD TV on my bedroom wall, on the other side is the airing cupboard, so I stuck a piece of wood to the wall and screwed right through into that.

HTH

John

yes a piece of plywood the other side of the wall to spread the load?

The other side is another room so this isn't really an option.

Tony

As other posters have observed this style fo wall doesn't have studs. If they had I would have adjusted the TV mounting to line up with a stud at least for 2 of the fixings.

Tony

I did think of gluing a piece of ply onto the wall behind the tv to reduce the amount the plasterboard would warp, and having holes through the board where the fixings go through to the wall, or fixing the board to the wall with the anchor fixings in a few places plus gluing it, and then mounting onto the board.

Tony