Bought a new TV and I'm going to mount it on the wall, made the mistake of placing the stud in the wall too low, took the measurements from a regular wall mount but bought one that was more suited for this TV (hangs by a wire like a painting), the question is will the OSB board hold a 16 kg TV with only two mounting points?

Norrl...
 
OSB is strong as hell, the problem is getting the screw to hold. I would probably have used some form of expansion plug for drywall.
 
I saw in the package that there were some "strange" molly-like fasteners for drywall, they should work...

Norrl
 
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You can hang up 15 such devices on ONE screw in OSB...

 
5 mm TFX SPAX-S is, however, no ordinary bonnskruv..

Is it plaster on the outside?
 
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Klutte
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Yes cast on the outside.
 
Can some kind soul link to the report from SP?
 
If you can hang 30kg on a single M5 Molly plug in just gypsum, then it is certainly possible to hang the same weight in gypsum + OSB. Just make sure to choose a sufficiently long Molly plug.
 
I think you're making this unnecessarily complicated.

Use a proper wood screw, as thick as possible, and the issue is solved. I normally use Essve's Wood Screw for indoor installations. If I'm going to hang up even bigger things, I usually go for http://www.vsbyggskruv.se/pdf/sid82.pdf in a suitable dimension.

Using plasterboard anchors when there's a wooden board in the wall seems very strange to me.
 
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MagicFingers
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Mikael_L
I put OSB behind the drywall on all the walls in the house.
And the reason for this is precisely to avoid using a single drywall anchor. :)
 
N is probably right, but there's quite a bit of psychology involved when advising someone to mount a 55" TV for 20,000 SEK. Which I myself will have to do soon. It will probably be using threaded rod throughout here! 16 mm. Two pieces. At least.

Or as my teacher in strength of materials in high school explained: Sometimes you have to use a much stronger screw than what is actually required, otherwise, it looks completely crazy.

She was wise.
 
Mikael_L
16 kg TV?
 
Samsung 55" 3D LED-TV UE55D8005, e.g. :)
 
Mikael_L said:
I put OSB behind the plasterboard on all the walls in the house. And the reason for this is precisely to avoid using a single plasterboard anchor. :)
Exactly d^_^b
Plasterboard anchors are NOT used when there is OSB behind. It's perfectly sufficient with wood screws; the mount usually has 4 screws, and you can hang quite a lot of kilos on it.

@mycke_nu, there's no reason to go beyond what's needed; it becomes much more expensive and complicated. Said my teacher, it's wise ;)
 
mycke_nu said:
N is probably right, but it becomes quite a bit of psychology when advising someone to mount a 55" TV for 20,000 SEK. Which I myself will do soon, by the way. It will likely be all-thread here! 16 mm. Two of them. At least.

Or as my teacher in strength of materials in high school explained: Sometimes you have to take a much stronger screw than what is actually required, otherwise it looks completely crazy.

She was wise.
Psychology indeed. I think you risk ending up in a bedroom with the mattresses on the walls soon. All-thread....

If you're unsure if the theories are correct, there's only one thing to do:

lastprov.JPG

Practical load tests.

Now take 2 or, for that matter, 4 real 6mm wood screws. Mount the wall bracket and then climb up on it and take a picture before you fall down.

My TV weighs 30kg and is held with two screws and has been for several years, in OSB. I see no signs that it wishes to fall to the ground.
 
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