Timber for interior wall?

[tupas]

What dimensions should I have for the studs and the sill when installing an interior wall?

 

[ppalm]

2"3" is fine for interior wall

 

[tupas]

What should I use if I need to install 120mm insulation in the wall?

 

[andersmc]

Then you can have 120mm studs instead.
Or you can have 70-studs in a zig-zag pattern. It can improve sound insulation.

 

[ppalm]

What should I use if I want 120mm insulation in the wall?

why 120mm insulation in an inner wall?

If it's sound you want to remove, it's better with double plasterboard on both sides of a 3" wall.

 

[tupas]

The wall is going to be for a warm storage room in the garage, the rest of the garage will not be warm.

Do you use the same measurements for both studs and sole plates?

 

[styrman1]

Yes, you use the same measurements for both studs and sills.
Additionally, you should have a moisture barrier in the wall if the garage is uninsulated.

 

[andersmc]

The wall will be for a warm storage room in the garage, the rest of the garage will not be warm.

Do you have the same measurements for both studs and sill?

Yes.

 

[tupas]

Do you think I need to have plastic in the inner wall? The walls will be insulated in the garage section, but part of the ceiling will be open to store things on the trusses (no heat in the garage section).

 

[Mäster]

Is there any point in having insulated walls if the top is uninsulated?

No plastic in unheated spaces is usually a rule of thumb,

But if you have it open at the top, plastic in the wall seems superfluous, heated or not, since the point of plastic is to create a vapor barrier, and it should preferably be as tight as a balloon, air exchange should then only occur through purpose-built vents.

The idea is that no moisture should migrate from inside the warmth and out into the wall, where it condenses at the "dew point." The question is also whether significant moisture will be added in the warm part from people, cooking, showers, etc., that can then seep out, given that it's a storage space.

I wouldn't consider plastic (construction film) necessary.

 

[tupas]

I will have about 10 degrees inside the storage room with an air vent, insulated walls, and ceiling in the storage area. Should I have plastic (construction film) in the inner wall to the unheated garage?

 

[Mäster]

You can place plastic in the storage area in that case, inside the insulation, and also under the insulation in the ceiling. However, it is probably not necessary, assuming you will have it heated afterward, for all eternity.

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