What stud spacing for ply walls in Colorbond garage?

[ChickenLittle]

With Brisbane summer fast approaching I'm considering insulating our freestanding colorbond garage - currently being used as our home gym.

I've assumed I should be standardising on 90 x 45 H3 framing with 15mm F8 structural ply for the walls.

There's a high likelihood I'll be attaching shelving in some areas but not for anything overly heavy (eg not storing 20kg weight plates etc).

I just want to get some thoughts on if 600mm stud spacing will be fine or if I need to be going with 450 spacing to keep the ply sheets flat and level?

Example photo with stud wall superimposed by the mighty ChatGPT

[JacobZ]

Hi @ChickenLittle,

As this is not a load bearing wall, there aren't any really strict requirements about stud spacings. With 90x45 timbers, you'd be perfectly fine using 600mm stud spacings. Just try to get the straightest studs possible. If you are looking for absolute perfection, make sure to "crown" the studs so you can plane out any unevenness if required.

Adding thick structural ply is going to make your wall extremely solid and will allow you to put shelving pretty much anywhere you want. 

I wouldn't stress; you're already planning for more than what is required.

Let me know if you have any further questions.

Jacob