Build interior wall with 45x45 studs

[evoline]

Hi,
I'm going to build a wall between 2 bedrooms.

How do you attach studs to drywall when the wall's placement is being slightly moved?
Attaching to the floor is no problem, but for the ceiling and wall, I guess there are no studs behind where the new wall should attach.

The previous wall had 45x45mm studs with drywall.
The new wall will be 45x45 studs with OSB, drywall, and insulation inside for soundproofing.

Is cc45 or cc60 recommended for such a wall?
The wall will be 3.2m wide and 2.4m high.

Thanks in advance

 

[Vante]

Cc 600 and montage/sättlim.

 

[evoline]

Cc 600 and assembly/setting glue.

Why glue, not just screw the OSB board?
Do you mean screw + glue?

 

[FredrikR]

Why glue, not just screw the OSB board?
Do you mean screw + glue?

Didn't you want advice on how to attach the new rules in the middle of the wall and ceiling where there are no studs behind the plaster?

In that case, adhesive is an option. 👍

You can also drill and use plugs if you want.

 

[evoline]

Didn't you want advice on how to attach the new battens in the middle of the wall and ceiling where there are no studs behind the drywall?

Then adhesive is an option. 👍

You can also drill and use plugs if you like.

Thanks, I thought adhesive was for OSB board, but now I understand 🙂

Does this work?

https://www.bauhaus.se/gipsplugg-co...H6QU6C_a-tTC7VlRY8MARHqId-5ANbFRoCa6QQAvD_BwE

 

[FredrikR]

Thanks, I thought glue for OSB board, but now I understand 🙂

Does this work?

[link]

Certainly, if it's single plasterboard in the wall.

You need to pre-drill the stud and measure where the plugs will be in the wall.

 

[zarkov]

I did a similar thing a few years ago, where I pre-drilled the studs and then set expansion plugs in the drywall. However, the included screws were too short, so I had to countersink the holes in the studs about 20mm for them to reach into the wall.

With OSB on both sides, the spacing of the studs doesn't matter much since the board braces everything. All the OSB boards I've seen in recent years have been about 1200 mm wide, and c/c 600 fits best then, at least if you set them upright. With horizontal boards, it doesn't matter, although I wouldn't want boards that could flex behind the drywall. Also, consider offsetting the joints in the drywall from those in the OSB if you choose upright boards (or choose 900 mm drywall that's much easier to handle).

 

[evoline]

Certainly if it's single drywall in the wall.

You need to pre-drill the stud and measure where the plugs will end up in the wall.

Thanks.
Yes, it's single drywall.
Maybe it will be 45x70mm for better soundproofing.

 

[FredrikR]

Thank you.
Yes, it is single drywall.
Maybe it will be 45x70mm for better sound insulation.

The question is if it makes any difference.

Double drywall dampens sound better than single drywall.

 

[evoline]

The question is whether it makes any difference.

Double drywall dampens sound better than single drywall.

The frame for the studs will be attached to single drywall, meaning single drywall on the ceiling and walls that exist today.

When the studs are up, it will be cc60, OSB, and single drywall on both sides with insulation inside.

 

[evoline]

I did a similar thing some years ago. I pre-drilled the studs and then used expansion plugs in the plasterboard. However, the included screws were too short, so I had to countersink the holes in the studs by 20mm or so for them to reach into the wall.

With OSB on both sides, the stud spacing doesn't matter much; the board braces everything. All OSB boards I've seen in recent years have been around 1200 mm wide, and then c/c 600 fits best, at least if you place them vertically. With horizontal boards, it doesn't matter, though I wouldn't want boards that could flex behind the plasterboard. Also, remember to offset the plasterboard joints from those in the OSB if you choose vertical boards (or choose 900 mm plasterboard, which is much easier to handle).

Will use 45x70mm studs instead.
Does M4 like these work, and then switch to longer screws to M4 x 80mm?
Or

https://www.bauhaus.se/gipsexpander...62487&indexName=nordic_production_sv_products

https://www.bauhaus.se/skruv-essve-for-sam-gipsexpander-fzb-m4x80mm-4st-fp

Or should you use M5 like these, but the screw is only 74mm?
https://www.biltema.se/bygg/fastelement/expanderskruvar/metallexpander-m5-x-74-2000057393

 

[Kimpaann]

You should have a cc distance of 600mm and nothing else. To attach to an existing wall, I recommend using plugs. Alternatively, use metal studs, then you don't need to screw into the existing wall, only the floor and ceiling.

 

[evoline]

You should have a cc distance of 600mm and nothing else. To attach to the existing wall, I recommend plugs. Alternatively, metal studs, then you don't need to screw into the existing wall, only the floor and ceiling.

cc60 it will be.
But it's how to attach the studs that I'm now wondering about, which screws to use.
Against the floor is no problem as it's wood.
However, the walls and ceiling are gypsum, without the wood board underneath for the studs to be attached to.

It will probably be wood studs and not metal studs.
Is it never done to attach metal studs to a wall?

Thanks in advance

 

[zarkov]

Will use 45x70mm studs instead.
Does M4 like these work, and then replace with longer screws to M4 x 80mm?
Or

[link]

[link]

Or should you use M5 like these, but the screw is only 74mm?
[link]

80 mm should be enough, you have to go through 45 mm wood, 13 mm plaster, and maybe 5 mm thread = 63 mm.

By the way, Essve also has M5x100: Bauhaus

If you need even longer, you can take a threaded rod with the correct diameter and cut it to the right length with a hacksaw, then screw a nut onto the free end.

 

[Kimpaann]

cc60 it will be.
But I'm now wondering about how to attach the studs, which screws to use.
To the floor, there’s no problem as it's wood.
However, the walls and ceiling are gypsum, without wooden board underneath to attach the studs to.

It will probably be wooden studs and not steel studs.
Do you never attach steel studs to the wall?

Thanks in advance

Never say never, for the short piece of wall you're going to have, the need doesn't arise. Unless the family plans to mount a trampoline on the wall to throw themselves against.

Don't make it more complicated than it is because one day the wall might need to be torn down too. The existing wall is actually a very small problem when you mount a top and bottom plate on the ceiling and floor; the wall becomes self-supporting, and I assume you don't plan to have any major loads on the wall such as kitchen cabinets, etc.

Place the stud against the wall, pre-drill with a smaller dimension through the stud into the wall, drill with the correct dimension for molly plug in the wall, screw it fast and it’s done.