Building an 80mm interior wall

[yens]

I am in the process of moving and modifying some walls at home, and now I need to seal up, among other things, a door opening. The existing wall is 80 mm reinforced concrete, and I will need to hang a few things on both sides of the wall. How do you suggest I frame up the wall? I've considered 45x70 studs on the "cross" and then 7mm plywood on one side (where most things will be hung) and then simple drywall on both sides, which would make the wall 45+7+13+13=78mm, which can be considered close to 80.

Are there any better ways to do this?

 

[Mikael_L]

Or 45mm rule + 2x12mm chipboard that is glued to the rule (the glue makes the wall stronger, right?) + 13 mm gypsum on one side. = 82 mm ...

I was mostly interested in the gluing, but maybe it works against the gypsum too, in your own suggestion.

Just a suggestion, not sure if it's better.

 

[andersmc]

I can't guarantee better, but another way would be:
Renoveringsgips, 6 mm
OSB, 11 mm
Reglar 45
OSB, 11 mm
Renoveringsgips, 6 mm

Then you're up to 79mm
If it must be exactly 80, you can replace one OSB with a 12 mm spånskiva.

 

[Mikael_L]

So you are up to 79mm
If it has to be exactly 80, you can replace one of the OSB with 12 mm chipboard.

Then it might be possible that there will actually be a few tenths of an air gap between the boards (the OSB isn't always very smooth), so that wall might end up very close to exactly 80mm.

 

[yens]

I think anything between 76 and 84 is okay, I don't expect it to be exact, that probably has to be arranged in another way, but both of your options are definitely exciting. I also think there will be a bit of space, probably more than a few tenths, the rules are usually not exactly spot on in mm either...

 

[OlaF]

I vote for andersmcs' suggestion. Symmetrical and good, and nice to have OSB on both sides.

 

[yens]

I only have one question regarding Anders' proposal, it's about eldosor, how do I get them at the right depth? Maybe the best is to use boxes for double gypsum and set them deeper than they should be, or can you use a single box when there is 17mm board material?

It's probably only going to have electricity on one side, so the asymmetric option might be considered...

 

[andersmc]

"Double outlets" with customized mounting depth will be fine. It will almost rest against the opposite panel.

 

[yens]

Yes, that's likely how it will be, *tries to count*

Thanks for the tips, today I've at least torn down a 200x25 cm reinforced concrete wall (8 cm thick) to move a door a tiny bit, was it dusty? - no, how could you think that

Now I'm off to knock on the boards to decide which option it will be. Thanks for the tips!!

 

[yens]

I followed andersmc's suggestion, 45 rule plus osb and renovation plasterboard on both sides, I attached a small picture, however taken with a mobile, so it's not entirely fantastic quality, but you can see a little bit how it turns out anyway.

Thank you so much for the tips, I am SUPER happy

 

[Mikael_L]

It seems to be an easy task to plaster to the exact right level.
Nice that it turned out well!