OSB board

[Callemaja]

I was thinking about installing an OSB board under a drywall on a wall.

Question 1: How do you nail the wooden board? Are staples sufficient and if so, what length?
Question 2: Do you need noggings at the joint between the drywall sheets when there is a wooden board underneath?
Question 3: How long should the screws for the drywall be?
Question 4: Anything else to consider?

 

[MathiasS]

1. You don't nail, you screw with 30 or 40mm plasterboard screws. The board is 11mm thick.
2. No.
3. 30mm

 

[Mikael_L]

I almost agree with Mathias.
But in my world, you screw the OSB with 30-40 mm particle board screws, as these screws countersink their heads themselves in the OSB board.

1. Particle board screw, about 32 mm. (but DO NOT use particle board screws for the drywall)
2. No, and it is actually not necessary to have any blocking under the OSB either.
3. 32mm, roughly. But if you want to do the job exceptionally well, use screws for double drywall, about 41mm everywhere you screw into a stud.

4. Offset all joints between OSB and drywall, meaning no drywall joint in the same place as an OSB joint, except at corners of course.
Install OSB either horizontally or vertically, install the drywall vertically.
Cut all drywall edges (at least cut off the beveled edge) that are in corners, so you won't go gray trying to fill the beveling later. If you cut the edges well, a small bead of acrylic caulk applied in the corner instead of joint compound will probably suffice.

 

[MathiasS]

You're probably right, but I've never bothered to buy an extra type of screw just for this.....

 

[Mikael_L]

And I have never tried with drywall screws and thus been able to discover if it works just as well or not ...

 

[prototypen]

I tried as recently as yesterday.

OSB can be screwed with drywall screws, but it doesn't pull into the board, sometimes the screw head sticks out a little.
1 out of 50 screws I broke off in my eagerness to get them slightly countersunk.

If you think carefully and don't screw right in the middle of a chip, drywall screws work fine.

Protte

 

[Hubbe2]

Works just as well with gypsum screws, although chipboard screws are more correct.

 

[JOW]

I know that some use a stapler, I assume they use 38mm staples....for the OSB board that is....

 

[MathiasS]

I tried as recently as yesterday.

OSB can be screwed with drywall screws but they do not sink into the board, sometimes the screw head sticks out a little bit.
1 out of 50 screws broke off in my eagerness to get them slightly countersunk.

If you're careful and do not screw directly into a chip, drywall screws work.

Protte

I also screwed yesterday. In this case, I’m using noname screws and pay no attention to where I'm screwing. That is, pretty much the way I usually do it. The number of screws I've broken over the recent years I can count on my toes and fingers. I have no problems getting the screw into the board.

However, I have noticed that several cheap screwdrivers here at the cottage don't have the power to fully drive the screw in if you use high speed (second gear). However, I don’t have such problems with my regular Bosch driver.

 

[prototypen]

Now I'm using a large Makita, and breaking a screw if you happen to hit a knot in the beam isn't surprising.

The screw is from ESSVE.

Protte

 

[prototypen]

Now I'm using a large Makita and stripping a screw if you happen to hit a knot in the stud is not so strange.

The screw comes from ESSVE.

Protte

 

[Callemaja]

Thanks for the tips.

Even in the simplest detail, it's necessary to brainstorm the best construction.
All to avoid problems in the future.