I'm designing a wall/door sized 2.6*2.4 meters. It'll be made of 10mm thick OSB sheet, sandwiching 50mm of rockwool: I consider using 50mm - wide strips of 22mm OSB as studs to fix sheets to. To avoid warping and have stability as the wall is not fixed.
The questions are:
- Is it worth to put something like this between studs and the sheets to limit low-frequency sound transfer through studs?
- Am I right about timber vs OSB being less stable?
- How many screws do I need and what kind would suit this purpose the best?