By the way, are you sure that this wall is load-bearing and not the one on the other side of the corridor? Is there any load transfer in the ceiling above the dining room, if so, there should also be a load-bearing column in the wall you were planning to remove. Are there any blueprints of the house?
 
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Niklaspe
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According to Älvsbyhus, the red-marked ones are supposed to be load-bearing. There is no beam support in the ceiling over the dining room. The blue indicates where the foundation beams in the crawl space go.

I have checked with a stud finder on the kitchen wall and made holes to inspect. It is definitely load-bearing there. Also in the living room.

The only sectional drawing available is the one I have already posted. Otherwise, it's just the exterior view and floor plan. But it essentially says nothing.
 
  • Floor plan highlighting load-bearing walls in red and areas for sill beams in blue, including kitchen, dining area, and living room, with marked sections.
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By the way, why can't glulam pillars be placed directly on a floor joist? The floor joists are supported by the plinth beam as well, right? Thinking that you could place the pillars on the floor joist directly above the plinth beam? This way you avoid making mounts in the plinth beam, and a floor joist should handle the point pressure without any problem?
 
Here's what I'm thinking:
 
  • Diagram showing a glulam column placed on a base beam, with a red arrow indicating attachment using angle iron to floor beams.
You should lower the column to the beam. Wood is very weak in compression perpendicular to the grain direction, and it also creates an unstable knot.
 
Can I use the option to attach the pillar to a floor joist with angle brackets? Or do you think it requires a dedicated attachment from pillar to the base beam as I described earlier?
 
In the process of supporting the load, do you think a 90x225 glulam beam is sufficient to span 2500mm? Or should I go for a 90x270 to be sure?

Swedish truss 38 slope, lightweight metal roof without insulation, etc. Chipboard on the upper floor, no significant weights. Snow zone 3.

Wondering if anyone else has supported a couple of meters in their house and can share what size glulam beam they used.
 
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