Hello, my partner and I have encountered problems in our house renovation; we are currently undergoing a roof renovation because the old one was too bad. In connection with this, we wanted to uncover the old timber trusses and keep them visible, so we will raise the roof by 220 mm using 220*45 rafters.

To the problem, since we want as much floor space as possible regardless of whether it's not all furnishable, we tore down two walls, and inside these walls are some load-bearing studs for the intermediate floor. The room below measures about 6 * 4 M.

So what we want to do now is remove these studs/beams and replace them with something that can be hidden in the floor without too major modifications.

In the simplest of all worlds, I thought one could use new studs with the corresponding thickness as the existing intermediate floor but place them closer together. But then again, I'm not an engineer, so I know nothing about durability, pressure loads, etc.

The load-bearing beam is 220*70*4100 MM and is notched into the exterior wall and rests on an interior wall on the lower floor with a doorpost in it.

The intermediate floor has dimensions of 150*150*5930, and they are notched into the walls, spaced at cc 1100 mm.

On the lower floor, we have a fireplace in the middle of the interior wall, which we prefer not to disturb.

I also attach some pictures with explanations on them.
View of exposed timber beams in a house renovation, featuring outer wall, floor joists, and a support beam, labeled in Swedish for structural reference. Attic renovation showing wooden beams and floor, with colored lines indicating proposed structural changes. A ladder and tools are visible on the left. Floor plan showing a living room labeled "Vardagsrum" adjacent to a hall and stairs, highlighting the layout for a renovation project.

Many thanks in advance for all the responses.

Best regards,
Henrik
 
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