spacing rules osb

[injonil]

The way I experience it is that it is easier to screw in OSB compared to chipboard, but if the screw itself holds, chipboard seems to be clearly more durable. Therefore, I chose OSB and if something heavy needs to be mounted, it will be in the studs.

 

[Johan Gunverth]

Particleboard of good quality is better than OSB for hanging heavy things. That's what the three carpenters I know claim. However, particleboard requires some thought regarding screws and pre-drilling. Half the screw diameter is usually appropriate.

Regarding Gonate's comment about a 40" TV: A good friend has a 37" TV hanging in drywall + OSB, and the mount has started to "sag" suspiciously. The screws are slackening for some reason. I myself have particleboard behind the drywall, and a 40" LCD is still hanging there.

Particleboard should also be placed tightly against each other, except in inner corners where you leave 3mm. Preferably, they should be glued edge to edge as well. I have glued them to the wooden studs, and this is also a damn good aid when a standing 45x70 has bent. Just glue the particleboard to the stud, put it under a little extra tension (+2mm) and presto, you have a straight stud when the glue dries.

 

[nimhed]

Not OSB? What would you recommend instead? Chipboard, plywood? Tongue and groove boards could also be an option, takes more time but...

I would choose plywood instead. A bit more expensive, but screws hold much better (both the first and second time).

The price difference is about 60 :- per sheet, definitely worth it in my opinion.

 

[Mikael_L]

I would have chosen plywood instead. A little higher cost, but the screw holds better (both the first and second time).

The price difference is about SEK 60 per board, definitely worth it in my opinion.

No, I can't think like that !!!
I can't afford an extra 100' on the garage and over 1 million extra on the house!

Particle board, 88:-
OSB 129:-
Plywood 189:-
(Byggmax prices, as I don't have my lumberyard prices available right now, but it usually ends up being Byggmax price, or cheaper, for me)

So more than double the money.
OK, I can take these cabinet doors instead, it's not that many extra bucks, this tile, it's not that much more. I can take a bit stronger reinforcement, the difference isn't that much, Rendered facade instead, it's only 250:-/sqm extra...
And so on and so on.

But as mentioned, then the house would be twice as expensive!

OK, if I don't go for everything extra, then, but then I'm not particularly keen on throwing more than twice as expensive plywood boards than almost just as good particle boards. I'd rather choose 100 mm extra insulation instead.

 

[Addan91]

An acquaintance of mine placed raw plywood behind the gypsum. Not that I know what it costs, but it's good to screw into.

 

[Mikael_L]

17mm råspont is about 60:-/sqm. That is a bit cheaper than Plywood, more expensive than particleboard and OSB. Takes more time to put up, higher nail cost. Less waste, at least sometimes.

 

[Linnex]

I have placed plyfa where I know I will attach things like the Elfa system, TV, cabinets, etc. Where I have no plans today to attach anything, I have placed chipboard. In the bedroom, I have screwed double plasterboard to maximize soundproofing.

 

[Mikael_L]

Particle boards of good quality are better than OSB for hanging heavy things. That's what the three carpenters I know claim.

That sounds good.
Now I'm tempted to go with particle board and save some money.

But that's just it, what do you mean by good quality ??? I want/will go with the cheapest option... maybe...
How good will it be, on a scale...?

 

[Herr Anders]

Maybe not entirely on topic, but does anyone know if there is a difference in the amount of glue between chipboard and OSB panels? I'm thinking about which one emits more chemicals (formaldehyde and the like). Logically, it should be the chipboard since the pieces are larger in the OSB panel (less to glue), but it would be interesting if someone had a clue about the numbers we're talking about.

 

[Johan Gunverth]

Maybe not entirely on topic, but does anyone know if there is a difference in the amount of glue between particle boards and OSB boards? I'm thinking about which one emits more chemicals (formaldehyde and such). Logically, it should be the particle board because the pieces are larger in the OSB board (less to glue), but it would be interesting if anyone had an idea about the numbers we are talking about.

I actually believe that the OSB board is better in that regard because a type of glue is used that doesn't need to contain formaldehyde in the same amount. Unfortunately, I have no source, but "I've heard" this. However, an OSB board does contain a significantly larger amount of glue than a particle board.

Both (controlled) particle boards and OSB are likely to emit a formaldehyde dose that falls well below recommended limits.

http://en.wikipedia.org/wiki/Oriented_strand_board

 

[Herr Anders]

Both (controlled) particle boards and OSB are said to emit a formaldehyde dose that falls well below recommended limit values.

After once buying an Ikea piece of furniture whose formaldehyde dose was below current limit values and yet caused headaches in a sensitive family member (the furniture had to be given away to those in greater need), I am a bit cautious with particle products in general. It would be silly to have to remove all the walls an extra time just because you installed the wrong type of panels.

But I have heard that there are nowadays particle boards that are completely free of formaldehyde. I have never seen any, though. On the other hand, I haven't looked particularly intensively either.