Hello, I've been trying to find someone who can help me calculate the dimension and type of steel beam I need. It's not the easiest task, I must say! Apparently, not many have that expertise. But it seems like there might be someone here who does

I will open up just over four meters from the corner of the old exterior wall (above the window), the wall visible in the picture. The roof has concrete tiles, and the measurements of the new house are approximately 8m * 8m. The old exterior wall is at 5 meters. Does anyone know what would be suitable to place here? I live in Borås, considering the snow load.
Best regards, Henrik
