Post carrier under stairs & wall?

[OKV]

Hello,

Due to moisture damage, the floor has been stripped down to the slab (uninsulated with drainage gravel underneath).

Before the removal, sand, foam plastic, particleboard, and a plastic mat were on top of the foundation (in that order) with the wall and staircase on top of that.

Now, ventilated raised floors will be installed instead.

The staircase is a "U-staircase" and the wall consists of metal studs, insulation, and single-layer gypsum. The weight of both is unclear.

I am now wondering if it is possible to avoid casting under the staircase and wall? Would it be possible to use post holders in a stronger dimension instead? For example, https://www.joma.se/produkter/byggbeslag/stolpskor/hojdledsjusterbar-stolpsko-med-platta/

Grateful for your response!

 

[klaskarlsson]

Hello,

Due to moisture damage, the floor has been stripped down to the slab (non-insulated with drainage gravel underneath).

Before removal, there was sand, cellular plastic, chipboard, and vinyl flooring on top of the foundation (in that order) and then wall and staircase on top of this.

Now it will instead have raised ventilated floors.

The staircase is a "U-staircase," and the wall consists of metal studs, insulation, and single-layer gypsum. Uncertain weight on both.

Now I am wondering if it is possible to avoid casting underneath the stair and wall? Would it have been possible to use post supports in a heavier dimension instead? For example: [link]

Thankful for answers!

That should work quite well, I think?

However, they will become a thermal bridge, so you need to consider if you need some kind of intermediate layer, such as a rubber mat, so there is no kind of moisture precipitation/condensation around the steel directly at the staircase's foundation, which is presumably made of wood, etc.?

 

[OKV]

That should work just fine, I think?

However, they will become a thermal bridge, so you have to consider whether you need some kind of insulation, like a rubber mat, to prevent any moisture or condensation around the steel right at the foundation of the stairs, which is probably made of wood, etc.?

Thanks for the response, Klas!

It is indeed wood - even the bottom part of the wall is a wooden stud. Good point - I'll keep that in mind!