There are two standard thicknesses of plasterboard – 9.5 mm and 12.5 mm. Plasterboard sizes for walls are 12.5mm or 13mm. It's a great noise insulator and can reduce disturbance from other activities.

How thick is plasterboard Australia?

Gyprock Standard 13mm is manufactured in Australia to meet and exceed the requirements of Australian Standard AS/NZS 2588. The go-to for commercial construction, Gyprock Standard 13mm can also be used residential to deliver a more robust, acoustically sound lining.

How thick is plasterboard and skim?

Plasterboard is 9mm or 12.5 is most common - I always use 12.5. 2-3mm for the skim-ish.