Replace sill on supporting wall in basement

[Stha79]

Hello

We have a rotted sill on the heart wall in the basement that we plan to fix.
It only concerns part of the entire wall, the rest of the wall consists of a thick concrete wall.

The wall is currently wooden planks on one side and plaster on the other. Above this runs a substantial beam in the direction of the wall resting on a concrete wall on either side. The wall has a doorway at one end.

My idea is to replace this part with a standard stud wall on a new insulated sill, with a surface layer of OSB. Does that sound reasonable?

What's the simplest way to do this? Prop up at the doorway and just tear down and rebuild?

What dimensions should be used for the studs/sill?

The house is a two-story house from the 1930s.

Attached are two pictures of what it looks like on one side.

Thanks!
Best regards, Stefan

 

[Plupp 405730]

Yes, what you have in mind sounds good. What is the thickness of the wall today? It might be appropriate to somewhat follow it in terms of thickness, otherwise it will affect the floor surfaces.

 

[Stha79]

Yes, that sounds good with what you've planned, what is the thickness of the wall today?
It might be appropriate to follow it somewhat in terms of thickness otherwise it affects the floor layers..

Can't measure right now, but I would guess it's about 10 cm in total. So 45x95 cc600 then maybe? Is that enough for such a load-bearing wall? Or better 45x120?

 

[Plupp 405730]

It is clear that a 45x120 is better, it's not many kronor more expensive than 45x95..

 

[Stha79]

Have measured and the current wall is no more than a total of about 8 cm, plank + plaster.

So 45x95 should be enough, considering the sturdy beam (150x150) that also runs between the wall sections. 🙂

 

[Plupp 405730]

Yes, it is the slightest dimension that we usually use as a load-bearing..