Tearing down a wall - does the joist need reinforcement?

[rqx]

Hello,

I have a question about when I should remove two walls by my staircase.

I am going to remove two walls that currently enclose my staircase. The staircase hangs on the walls and will now be suspended/attached to the middle joist instead.

What I'm wondering is if the two walls I plan to remove have any load-bearing capacity since the joist is "ended" above one of them. Additionally, the other wall currently takes some of the weight from the staircase now that I'm going to attach the stringer of the staircase to the joist. The floor piece that is "missing" on the original plan may not be so stable to "hang" the staircase on. Should I install a beam (and subsequently floorboards etc.) where I have drawn on the plan to reinforce that outer corner?

I have made an extremely professional drawing in Paint where you can see the plan of the middle joist, truss construction, and an actual picture taken from above.

All help and tips are gladly received

/Tim

 

[Matti_75]

The wall that is drawn on your plan is load-bearing. The one in the middle of the staircase supports the landing, so you cannot tear down either of them without reinforcing in another way.

 

[rqx]

Thank you for the response!

Regarding the wall supporting the landing, can I continue with a beam as I have drawn to reinforce it? I will also be replacing the downstairs ceiling so I will have access to make changes from there.

Regarding the load-bearing wall, what options are there if I want to remove it? Is it possible without posts? How much does it bear? 1 meter out from that wall, the beams are hung in the roof trusses. Inside is a small closet and outside is a side attic, so the load shouldn't be that great? Moreover, the wall is only framed with 45x70, I thought load-bearing walls were thicker?

As mentioned, the entire ceiling on the ground floor will be removed if that helps me.

Thanks

/Tim

 

[rqx]

A thought that has struck me is whether it's possible (I am not entirely sure if I can practically do it) and then a constructor would have to look at it:

Attaching a support leg further in from the outer wall, I can basically attach a support leg to the high leg almost up at the collar beam. This support leg I can then attach down in the intermediate floor almost all the way forward where the load-bearing wall is.

I thought if you do it this way, maybe you could avoid having a post down there?

The idea is to open up down there because the spaces are very small, so a post in the middle of the room would ruin things a bit.

 

[Matti_75]

I think it's probably difficult to carry the loads from the floor structure without posts.

 

[rqx]

I think it is probably difficult to manage the loads from the floor without pillars.

Yes, that's probably true. I was just thinking since it's only a knee wall and closet there, the loads wouldn't be too large. I will contact an engineer and we'll see what they say.

 

[rqx]

Hello,
New thought!
If this wall is load-bearing, shouldn't there be some reinforcement down in the crawl space then? Or isn't it needed?
/Tim