Install OSB board

[Stabbsson]

Hello!

In connection with an electrician fixing some new wiring in a room that currently has standing raw plank nailed to horizontal battens (outer wall), he thought it was very complicated to run the wiring because you have nothing to attach it to, and if you make grooves, the bottom boards won't have anything to hold onto, so they will wobble and likely cause trouble before the drywall comes.

So, the idea is to tear off all the raw plank and let the wiring be fixed and replace it with OSB board instead. But I've read mixed opinions about OSB needing to be installed with a 2-3mm gap between boards due to movement, is it really that sensitive and won't the drywall crack because of it? Of course, not joint to joint.

 

[Lulaua]

No, that's how it's always done.

 

[Stabbsson]

No, that's what you always do.

You mean leaving a small gap? Your answer was a bit unclear to me, so I apologize!

 

[sinuslinus]

You can remove some of the boards so he can access to pull his and then put them back. Less work and much cheaper.

 

[MagHam]

A bit off-topic but...
Construction plywood doesn’t have this undersize so I hope I can put it edge to edge (I've done it without problems already)

 

[Stabbsson]

You can remove some of the boards so he can access his and then put them back. Less work and much cheaper.

That I didn't even think of this, thank you! Now the brain can rest and just go for it

 

[Nissens]

A bit off-topic but...
Construction plywood doesn't have this undersize so I hope I can place it edge to edge (I've done it without issue already)

No, all wood is "alive" and moves, so there should be a gap even with construction plywood.

 

[Davidbagare]

No, that's always how it's done.

Hahahah the worst answer I've ever read. Short answers are good, but you won't win the "shortest correct answer" competition anyway

 

[Lulaua]

What do you mean by incorrect?

 

[Davidbagare]

What do you mean by incorrect?

Yes