Currently working on changing the layout and kitchen in our house from the late 1800s to early 1900s. I need to open up between the kitchen and the dining room. However, it's a load-bearing wall consisting of slanted planks from one of the many sawmills that existed here when the house was built.
The house has two floors, and the opening I plan to create will be about 3.5 meters, leaving about 60 cm of the old wall on each side.
My first thought was to screw together 220x45 from each side of the wall and place these on the remaining wall for support. But I'm considering if that might be too weak. Maybe I need a glulam beam, but that might be too high. I live in Västernorrland. Can someone help me without any guessing?
 
  • House renovation with a partially demolished wall between kitchen and dining room, showing construction debris, tools, a vacuum cleaner, and exposed wooden beams.
BirgitS
Welcome to the forum!

Is it a log house with corner joints?

Inclined planks sound a bit like the paneling in a kloasongvägg: https://sv.wikipedia.org/wiki/Kloasongvägg

All interventions in load-bearing structures must, according to the law, have an approved building notification before starting the work.

Dimensions depend on how much load comes from above, and one should contact a structural engineer knowledgeable in the building methods of that time who can calculate loads and thus determine the necessary dimensions for beams and columns. One also needs to ensure that the columns stand on a steady foundation so as not to risk damaging the foundation with the weight from above.
 
It is not a log house, but the wall stands on a beam, which in turn stands on the edge beam on one side and on the chimney foundation on the other side, and is supported in two places in the middle on stone.
 
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