Hi.
I hope I can explain this now.

I'm going to make a floor that is 1.4x1.5m as a small hallway. Today, I have a closet room in the basement that adjoins an old garage section in the basement. This will eventually be organized, but it's a big project. We have a toilet that is just outside the closet room, like a small hallway. I tore up some floors and some walls because of a water leak above. I then saw wooden studs directly against concrete, which I now want to restore. I plan to use steel studs at the bottom and wooden studs for strength. No wood against concrete. I need to raise it to the level of the adjacent room, which is 10cm higher from the concrete floor. Is this the right approach or what are the alternatives? The reason is that the door to the toilet is at the higher level. Tips are welcome.
Hand-drawn floor plan sketch for a hallway renovation, showing concrete floor, new floor level, adjacent room, and existing toilet.
 
An illustration. What is in blue is what I am supposed to do.
Should I use wood fiberboard or floor gypsum on the floor? I was just thinking of using a plastic mat right there on the small area


Floor plan illustration highlighting blue area for flooring decision between particle board or gypsum board, intended for a small space with vinyl flooring.
 
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Karl.s Karl.s said:
Make sure the space under the floor is also ventilated, for example, via the baseboards.

An alternative is, for example, Platon or similar:
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Hi. I've done that on another part with Platon, but then I didn't have anything I had to reach up to, so it was simple. Didn't need to put up studs as in this case.

I'll probably go with a Subfloor since this part is so small. I can adjust the height too. Then when I do the garage part, I'll have to think further.
 
I have solved it according to the attached images... it is functional and insulated, gap by the wall for ventilation... the polystyrene rests on the spacers.
 
  • Wooden floor battens laid over spacers on a concrete floor, with a gap at the wall for ventilation.
  • Wooden beams and foam insulation are laid on spacers over a concrete floor, with a gap along the wall for ventilation.
  • Wooden floor installation in progress, showing planks laid over a frame with insulation underneath. Tools like a drill and hammer are visible on the floor.
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Workingclasshero
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M MaM said:
I solved it according to the attached images... it is functional and insulated, a gap by the wall for ventilation... the Styrofoam rests on the spacers
Looks nice, what's at the bottom? A substantial gap, isn't there any flex by the wall?
 
Mattias_Jo1 Mattias_Jo1 said:
Nice, what's at the bottom? Solid span, won't it flex by the wall?
Probably, but who's standing there swinging? A bookshelf maybe?
Looks very well thought out anyway :-)
 
Workingclasshero Workingclasshero said:
Probably, but who is standing there and rocking? A bookshelf maybe?
Looks very well thought out anyway :)
Could be tjärpapp. Now I see why it looks like a substantial gap, they're lying on a ledge, so there will likely be no sagging. I assume it's floating serbs out.
 
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There has been a tarred/cold asphalted bottom for a long time, with old insulation on top… now the old insulation is gone, the asphalt remains and new spacers with roofing felt to reduce moisture migration. It's correct that there is a cast "ledge" around the room, here too the floor rests on plastic spacers.
 
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Considering whether I should try these.. it's just 1.5x 1.4m where I need to raise the level by 10cm to a door. These raise 3.5 - 6.5cm
Adjustable floor supports on a shelf, capable of raising the floor by 3.5 to 6.5 cm. Used to address leveling issues near a door.
 
Why not just cast? It’s not too many bags to mix.
 
Henkan Sundberg Henkan Sundberg said:
Why not just pour? It's not too many bags to mix.
Yes, that would have been best, but there are a few things that complicate it. I'm going to fix the entire floor eventually, but whether it will be next year or in 2 years, I don't know. It's a larger project overall. This will be a partial project and I'll remove it when I pour the entire floor.
 
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