Hello!

I'm planning to remove a wall between the kitchen and the living room. It's about 3m of the center wall in a 1 and 1/2 story house. It's a 70s house with studs and drywall in the wall. I suspect that the upper floor joists rest on this wall. Directly above is the center wall on the upper floor that separates 2 rooms. Could two posts with a glued laminated timber beam work, or do I need a steel beam to avoid too low ceiling height? Might need to hire someone who can calculate it, but does anyone have an idea of what dimensions might be needed?
 
now you need to hire someone and if you remove a load-bearing wall, you need to make a building notification
 
If the 3m wall today consists of 4 pieces of 90*45 placed at CC60, can't we "convert" their strength to an equivalent with a glulam beam of 3m? Are plasterboards included when calculating a wall's load-bearing capacity?
 
Found a calculation program on Moelven's site where I calculated on the beam under the floor joists. Got that the following would work:
90*225 Deflection 10mm
90*270 Deflection 6mm
90*315 Deflection 4mm
The column load would be 21.2 kN

Then columns with dimensions 90x90 at each end would work.
 
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