We are in the process of planning the final details for our construction.
We were planning to have OSB behind drywall in the walls. Now I've received a couple of warnings that there's a risk of drywall joints cracking if you use OSB. The suggestion was to use plywood instead, but that would be significantly more expensive.
What do you think, is it worth the extra cost to use plywood instead of OSB?
We were planning to have OSB behind drywall in the walls. Now I've received a couple of warnings that there's a risk of drywall joints cracking if you use OSB. The suggestion was to use plywood instead, but that would be significantly more expensive.
What do you think, is it worth the extra cost to use plywood instead of OSB?
does not usually crack with OSB if done correctly.
many think that a few screws are enough in the OSB. but it should be fully screwed (according to the first layer rule)
many think that a few screws are enough in the OSB. but it should be fully screwed (according to the first layer rule)
Diversearbetare
· Göteborg
· 11 228 posts
12mm particle board to be screwed and preferably glued to the studs. Cheaper than OSB, same strength, stronger against studs and does not move dimensionally. They are laid edge to edge.
absolutely not chipboard. worst you can have.
then you shouldn't have wood edge to edge. wood is a living material
then you shouldn't have wood edge to edge. wood is a living material
A new type of plywood has arrived called Wisa Wall ergo, which is somewhat cheaper than k- plug in 900 mm width. It is spontaneous and 600mm wide and is mounted horizontally on the frame. It is allowed to be installed with floating joints just like parquet flooring = minimal waste.
Diversearbetare
· Göteborg
· 11 228 posts
That was a double error. Particle board is always recommended by carpenters and designers. It SHOULD also be installed edge-to-edge and, preferably, glued at the short ends according to approved installation instructions. Particle boards do not move at all. Just as strong in the direction of pull as OSB if pre-drilled with the right dimension and using the right screws. Particle boards can also be used to straighten crooked studs by screw-gluing and pre-tensioning.SBH said:
If you mention OSB to the same carpenters, you will get a bucket of reproach. They have learned the hard way to call it "crap plyfa."
Plywood is naturally superior to both, but, as you know, has a completely different price tag.
No carpenter uses chipboard in walls. If he does, he's dumb in the head. Would never install a kitchen where the walls are chipboard and plaster.
Favorite in repeat.
It's interesting that there are so many preconceived and often incorrect notions about how good or bad OSB and particle board are.
Luckily, there's a recognized institution that has hung a cabinet on a wall and then loaded it with items until it collapsed. Good for us, they took the opportunity to note down how much could be loaded into the cabinet before it fell in the various cases (wall of osb, ply, particle).
Interestingly, regardless of wall type, it was noted that a regular kitchen frame would break apart before the mounting gave way.
In other words, the only thing that's silly is to argue for one or the other in kitchen installations.
It's interesting that there are so many preconceived and often incorrect notions about how good or bad OSB and particle board are.
Luckily, there's a recognized institution that has hung a cabinet on a wall and then loaded it with items until it collapsed. Good for us, they took the opportunity to note down how much could be loaded into the cabinet before it fell in the various cases (wall of osb, ply, particle).
Interestingly, regardless of wall type, it was noted that a regular kitchen frame would break apart before the mounting gave way.
In other words, the only thing that's silly is to argue for one or the other in kitchen installations.
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>...risk that the girpskarvarna crack if you use OSB.
>The suggestion was to use plywood instead, but it will be significantly more expensive.
You should not place gypsum seams and wood panel seams (chipboard, OSB, plyfa) directly over each other. There is a "risk" that movements in the wood seam propagate directly to the gypsum seam. If possible, stagger the gypsum/wood panels at every other stud. Alternatively, (although a second choice) butt the gypsum only on the backing wood panel (but with this option, you should use at least OSB or plywood).
>What do you think, is it worth the extra cost to use plywood instead of OSB?
It depends on what you plan to hang on the wall. I would use OSB everywhere except on particularly exposed walls for TV mounting or similar, where I would use plywood. Using plywood everywhere in a house is not structurally incorrect, but not very wise economically.
Finally, as others have also pointed out, you should place OSB with a few millimeters of expansion joint. See for example BeijerBygg's comparison.
>The suggestion was to use plywood instead, but it will be significantly more expensive.
You should not place gypsum seams and wood panel seams (chipboard, OSB, plyfa) directly over each other. There is a "risk" that movements in the wood seam propagate directly to the gypsum seam. If possible, stagger the gypsum/wood panels at every other stud. Alternatively, (although a second choice) butt the gypsum only on the backing wood panel (but with this option, you should use at least OSB or plywood).
>What do you think, is it worth the extra cost to use plywood instead of OSB?
It depends on what you plan to hang on the wall. I would use OSB everywhere except on particularly exposed walls for TV mounting or similar, where I would use plywood. Using plywood everywhere in a house is not structurally incorrect, but not very wise economically.
Finally, as others have also pointed out, you should place OSB with a few millimeters of expansion joint. See for example BeijerBygg's comparison.
would love to see the carpenter installing chipboard in the wall. would like to know how the carpenter thinks.
you can also try putting a screw into chipboard, OSB, plywood, and rough sawn plank.
little finger on the pry bar to get the screw out of the chipboard
you can also try putting a screw into chipboard, OSB, plywood, and rough sawn plank.
little finger on the pry bar to get the screw out of the chipboard
It takes a quite remarkable TV before you need special boards behind the drywall.byggsson said:
This one is quite remarkable.
http://panasonic.net/prodisplays/products/152ux1/spec.html
It would actually require three screws not to fall off a chipboard wall.
Even though I would personally use significantly more and thicker screws as well as add some more framing behind the boards if I had such a TV, it gives a bit of perspective on the whole thing. No regular 50-60" TV needs plywood in the wall to stay in place.
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1240N particleboardSBH said:
1690N osb
1910N plywood
refers to load in the direction of the screw's length.
The best thing about this discussion is that you don't have to have an opinion. There are numbers from practical load cases that give us the answer.
yes. now never a screw just a load. the load pulls the screw both down and out.