ᐅ Wall-Mounting a TV on a Timber Stud Wall – How to Install?

Hello everyone,
we want to mount our flat-screen TV on the wall in the bedroom. The spot is in a corner of the room. Since a corner naturally consists of two walls, I have two options for where to attach the bracket. One of them is an exterior wall.

This wouldn’t be an issue if the walls were made of masonry or concrete, but we’re dealing with wood frame construction. The studs are 70mm (3 inches) with 19mm (3/4 inch) particleboard and 9mm (3/8 inch) drywall. The exterior wall also has fiberglass insulation and a vapor barrier foil. This means that if I choose the exterior wall, I can’t use screws that are too long and might damage the vapor barrier (so a maximum of 9mm + 19mm length). Also, considering the weight, I would need stronger screws.

If I use the other wall, I won’t have the vapor barrier issue. However, there’s already a fairly heavy cabinet mounted on the other side of that wall (I’m not sure if that matters).

The main problem is that I’m not sure if the walls can support the weight. The bracket weighs 7 kg (15.4 lbs) and the TV 12.5 kg (27.6 lbs). Of course, the bracket also has an arm about 50 cm (20 inches) long, which creates leverage. This makes me a bit uncertain, so I’m asking here.

By the way, I have no idea where the studs are located. Otherwise, I would just screw directly into them.

Maybe you have some ideas on the best way to do this. Perhaps with some kind of drywall anchors designed for hollow walls?

Best regards,
xola123

Are those standard OSB panels? You can usually hang quite a lot of weight on them. Here, we have wall cabinets mounted with 4x 35mm (1.4 inch) screws, and they hold perfectly.

Don’t you have an installation cavity at the exterior wall?

He wrote chipboard.

It can work for a while, but after repeated folding and the lever effect involved, I think the chipboard around the screw will start to fiber and wear out.

And I thought that the exterior walls are probably made of oriented strand boards rather than particle boards. That would be quite impractical. You wouldn’t be able to hang anything securely.

What did the construction company specify?

Either you locate the studs, or you use special cavity anchors that expand behind the panel.
Such small screws will never hold the load permanently. That's why the mounts usually come with bolts like 6x60mm (2.4x2.4 inches).

In my opinion, Fischer KD4 anchors should be sufficient.

Spax screw into the wall and done.

It was advertised to us that each screw could hold about 50 kg (110 lbs).