Hello!

It's often recommended to put an OSB board behind the drywall on interior walls for stability and to have something to attach things to.

I originally planned to use double drywall but have started wondering if it wouldn't be a bad idea to put another board behind it.

But, the price! You can get a drywall panel for 60kr, but I saw an OSB board costs around 150kr!!!

My question is, can't you just put a regular 12mm chipboard behind the drywall instead, it also costs about 60kr and serves roughly the same function as an OSB board?

Best regards,
Pagge
 
The particleboard is more porous and does not adhere as well. Plywood might be best ;D but they are even more expensive.... :o if you don't want to put tongue-and-groove behind it.
 
I buy my records for 120spänn, you can probably negotiate that as well.

Don't look at the unit price, calculate how many records you need and you'll see that it amounts to a few thousand - probably small change in the grand scheme of things and you'll save yourself a lot of trouble with plugs etc. for the rest of your life...
 
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Hello
A little clarification, you usually don't need a chipboard/plywood or similar inside the drywall for stability. It is mostly for convenience/simplicity for mounting various things on the wall in a finished building.
Only in extreme cases do you need stronger boards than drywall for stability.
If you need more help with the house's statics, just shout and I can help you with that.
 
Perese suggested spontat, and it's not a bad idea. It takes longer to install than a whole board. But spontat + plaster, was previously found in upscale houses, and it's a good solution.
 
ClasseClas
We have chipboard + plaster, which is very good. Note: There's a difference between chipboard; I don't give much for Byggmax chipboard, we have Byggelit chipboard, which is of a completely different quality. I don't know the price of these.

I agree with MathiasS; toughen up and buy OSB and make sure to insulate the partition walls while you're at it!
 
ClasseClas said:
We have particle board + drywall, which is very good. NOTE! There's a difference between particle board types; I don't have much regard for Byggmax particle board, we have Byggelit particle board which has a completely different quality. I don't know the price for these.

I agree with MathiasS; bite the bullet and buy OSB and make sure to insulate the partition walls while you're at it!
And if you're insulating for sound, you only need to insulate the lower third of the wall. If you want to save materials. You can save a few krona...if you're in that kind of mood.
 
mr Z said:
And when you insulate for sound, you only need to insulate the lower third of the wall.
What do you mean by that? Up to the vanity? What is this based on, experience or scientific studies ::)?

Peter
 
perese said:
What do you mean then? Up to the commode? What are you basing this on, experience or scientific studies ::)?

Peter
If we're talking soundproofing, glass wool or similar doesn't really do a damn thing in terms of soundproofing. It handles the internal resonance in the wall and that's it... One usually insulates the entire wall anyway, but acoustically it's enough with 1/3 to deal with the resonances....
 
Thank you! Mr Z.

Do you have any "numbers" on how much more double gypsum or OSB+ gypsum compared to single gypsum reduces sound?
 
ClasseClas
mr Z said:
And if you are insulating for sound, you only need to insulate the lower third of the wall. If you want to save materials. You can save a few bucks...if you're in that mood.
Probably true, but for that Merc feel in the partition walls, I believe in full insulation! ;) ;) :P
 
Chipboard is perfectly fine to screw into! Recently, I've only used 10mm chipboard and then covered it with 6mm plasterboard. It turns out great! It works really well to screw and hang things on!
 
The problem with chipboard is that there is a leakage of formaldehyde which is not very healthy.
 
I've heard that they have reduced the formaldehyde in chipboard.
Is this true?? Does anyone know?? If not, then it's true as you say, it's not fun to build poison into the walls...
 
In today's boards, there is not as much formaldehyde as there used to be. Formaldehyde is a component of the glue. ;)

Edsbyn, for example, writes the following about its products:

Particleboard, MDF, and HDF-board are manufactured by factories that are under constant supervision by third parties, such as the Swedish Testing and Research Institute, the Norwegian Forest and Landscape Institute, and similar organizations, regarding compliance with the European standard EN 120. This standard specifies the test method for formaldehyde emission, and class E1 indicates that the limit value of 0.13mg/m³ air must not be exceeded. All board materials we use are of E1 quality. The material for the boards is sourced from sustainable forestry in the Nordic region.
 
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