Why does everyone use OSB behind drywall?

[kjb]

We are building new in the spring. 2-story 182sqm. If we want OSB behind the drywall, an additional 27 thousand for materials and 20-25 for the carpenter will be added.
What do you think? Is it worth around 50 thousand to have OSB behind the drywall?

 

[MagnusSt]

If it's about the money, I would prefer to install, for example, a cheap floor during the construction, and then plan to replace the floor as more money comes in. Retrofitting osb is a much bigger job.

 

[Yrrol]

I had saved that money.
Maybe put panels where I want extra quiet between different rooms. However, it should also be sealed with latex everywhere.
Or if you know you're going to have something heavy that you often stand and pull at.

With so many plugs to choose from, quick plugs, heavy-duty plugs, etc. There are screws that don't need plugs. Etc. You can manage without any extra panels behind.

50 thousand can get you some other things like appliances.

 

[fn76]

I did exactly that, put chipboard (not OSB) where it was needed. Why use OSB where it's not needed?

 

[MathiasS]

You don't need to put OSB where it's not needed. However, there's also no place where it's not needed. There's always some crap that needs to go up on every darn wall in the house. It's hard to understand why, but it's always true.

 

[Thomas59]

You don't need to put OSB where it's not needed. But, there is also no place where it's not needed. There is always some crap that needs to go up on every wall in the house. It's hard to understand why but it's always true.

You DON'T need to put OSB at all. There is essentially no place in a regular house where OSB is an absolute necessity. Everything that needs to go up on the walls can be attached to simple drywall with the appropriate plug.

Then it's a completely different matter that OSB might provide better soundproofing between rooms and that you avoid drywall plugs. Worth 50,000 SEK? Well, that's for each individual to assess. You might get some of it back when the house is sold, but that's highly uncertain.

 

[MathiasS]

If you want better soundproofing, it's probably better to add an extra layer of drywall.

Is it worth 50k? Yes, easily. Installing things in drywall is one of the most irritating things you can do as a homeowner.

 

[lorens]

All walls I fix now I put OSB behind the drywall. There's nothing worse than just drywall!!

 

[kjb]

Thanks for the feedback!
Yes, it's something to consider, 50,000 feels like a pretty high price for something you can do without. But at the same time, you're sure to regret it every time you have to mount something on the wall.

But for 50k you can also get a nice stove installed and ready.

But maybe there will be something in between. We'll probably put a board behind the walls we want to reinforce or soundproof. Possibly the bedrooms should get a board on the appropriate wall to reduce disturbing noise from other nearby rooms. If I had the time, I would have mounted the boards myself. But now with small children, that's probably not an option, unfortunately.

 

[Mikael_L]

We are going to build anew in the spring. 2 stories 182sqm. If we want OSB behind the plasterboard, it adds 27 thousand for materials and 20-25 for the carpenter. What do you think? Is it worth about 50 thousand to have OSB behind the plasterboard?

Ehh, 27' for materials, that means approximately 220 OSB boards = 264 linear meters of wall.

If you're building such a damn big house, can't 50 thousand kronor almost go unnoticed?


edit:
With byggmax prices, it's 247 boards = 296 linear meters of wall.
I think I put up less than 50 boards, if I remember correctly, but the upper floor remains and will probably require 30 more boards.

 

[Boan]

Use real plywood instead, even better, costs about 220 kr per sheet... you'll get very stable walls with noggings at 120 cm in height, insulation, and sealing all edges... not much sound gets through there, and it's easy to screw things up.

Don't skimp, do things properly! It's better in the long run.

 

[kjb]

I haven't calculated it myself. It is a two-story house, 91 sqm/floor. 260 ceiling height downstairs, 240 upstairs. The price is from the seller. I assume there will be a surcharge for deeper window sills (due to thicker walls), door frames, etc., etc. And it's possible that you might have to pay more than the byggmax prices. Then there's likely to be shipping costs, seller's commission, etc.

Yes, it's not cheap to build new, and that's why you want to keep costs down as much as possible. Everything must be paid for in the end. But of course, it's foolish to skimp on the wrong things.

 

[Korvgubbe]

I would probably do as MagnusSt suggests and try to save that money on something else that is easier to replace later if you want, such as surface materials. Floors, wallpaper, tiles, countertops, kitchen and bathroom faucets are things that can easily run up in price that you still feel you "need." Sure, we all want to live nicely, especially in a new build, but often you can find similar products at significantly better prices if you have the patience to look.

 

[Boan]

agree, had a friend who bought a house where according to their order there was supposed to be plywood behind all the walls, which they then "forgot"... not so fun, much better to save on things that can be changed in a few years as Korvgubbe writes.

 

[FredrikR]

But maybe it will be something in between. We might have to put panels behind the walls we want to reinforce or soundproof. Perhaps the bedrooms should have panels on suitable walls to reduce disturbing noise from other nearby rooms. If I had the time, I would have installed the panels myself. But now with small children, it probably won't work unfortunately.

If you're looking for soundproofing, double plasterboard works well. OSB, chipboard, or plywood is to avoid using plugs and worrying about whether it will hold for whatever needs to go up on the walls over time.