8,463 views ·
16 replies
8k views
16 replies
Remove load-bearing wall in concrete house
It appears to be approximately 2.5 meters of load-bearing wall. You most likely cannot remove it without reinforcing the rest of the structure.
It probably requires a structural engineer or experienced carpenter to come up with a solution for you.
It probably requires a structural engineer or experienced carpenter to come up with a solution for you.
I have done similar things in several places here in the house. To avoid regretting it, I have thrown up a small glued laminated beam in the attic to hang the rafters from. It's nice not to have to wonder whether the helmet should be on or off at the breakfast table.
The beam in the attic on top of the lower arm of the trusses, then sturdy angle brackets in the beam and truss so that the truss hangs from the beam. The beam must of course have sturdy bearing points at the ends.

Hello!
That looks good..! If you can place the beam on the rafters next to it, which are supported by the wall underneath and further down through the basement, it wouldn't need to be more than three meters in our case, do you think that would work? Otherwise, we would need about a ten-meter long laminated beam..
That looks good..! If you can place the beam on the rafters next to it, which are supported by the wall underneath and further down through the basement, it wouldn't need to be more than three meters in our case, do you think that would work? Otherwise, we would need about a ten-meter long laminated beam..
Hello!
I have talked to some guys here at work and they don't think it's approved to let trusses support other trusses, even if there is support for the supporting ones straight down through the whole house. I need to talk to a quality manager (former building inspector) I think, if I am to get clarity. Or is your construction approved? The difference with ours would be that our beam wouldn't support against the outer walls.
Best regards
/Christian
I have talked to some guys here at work and they don't think it's approved to let trusses support other trusses, even if there is support for the supporting ones straight down through the whole house. I need to talk to a quality manager (former building inspector) I think, if I am to get clarity. Or is your construction approved? The difference with ours would be that our beam wouldn't support against the outer walls.
Best regards
/Christian
Hello!
In the drawing, it seems like it should be possible to fit a couple of columns if you want to make a regular partition. At least on the floor shown. I would check with a structural engineer if it's possible to do something with an ordinary steel beam laid on wooden columns or some other suitable material if the rest of the house is stone. It won't be as high as a glulam beam, so you can probably have it under the rafters. Especially if the old wall is only 10 cm thick. In our house, only the walls that are 20 cm (concrete hollow block) are load-bearing. The thin walls (10 cm) are made of slag plates and are not load-bearing.
/pinebar
In the drawing, it seems like it should be possible to fit a couple of columns if you want to make a regular partition. At least on the floor shown. I would check with a structural engineer if it's possible to do something with an ordinary steel beam laid on wooden columns or some other suitable material if the rest of the house is stone. It won't be as high as a glulam beam, so you can probably have it under the rafters. Especially if the old wall is only 10 cm thick. In our house, only the walls that are 20 cm (concrete hollow block) are load-bearing. The thin walls (10 cm) are made of slag plates and are not load-bearing.
/pinebar
My beam doesn't support against any outer wall. I have my own approval on the construction.....DrKassler said:Hello!
I've talked with some guys here at work, and they don't think it's approved to let trusses support other trusses, even if there is support for the supporting ones straight down through the entire house. I think I need to talk to a quality controller (former building inspector) to get clarity. Or is your construction approved? The difference compared to ours would be that our beam wouldn't support against the outer walls.
Best regards,
/Christian
In this case, nothing is hanging on or supported by a truss. The first truss with support underneath is just a padding, you could say (between the bearing wall and the beam). Sure, you could make another padding that is 2 millimeters higher, but that's completely pointless and only worsens the construction.
The bearing walls under the beam in the picture consist of several 45x120 studs + noggins between them + OSB on each side of the studs.
I have contacted a quality manager and it will be interesting to see what he says. But as I said, the guys here don't think it's approved to move out the load. But we build trucks here and not houses... 
I think logically your reasoning holds.
/Christian
I think logically your reasoning holds.
/Christian
I can't see what effect it would have either.
We have a supporting wall at the bottom. Then comes the truss, and then the beam.
The only concern I can see is that you have too small a bearing surface between the beam and the truss, but then you just have to splice the truss on both sides so that you get an acceptable setup.
We have a supporting wall at the bottom. Then comes the truss, and then the beam.
The only concern I can see is that you have too small a bearing surface between the beam and the truss, but then you just have to splice the truss on both sides so that you get an acceptable setup.
