Plasterboard Calculator
Work out how many plasterboard (gyprock) sheets you need for a wall or ceiling, plus screws and compound, by area.
| Plasterboard sheets (2.4×1.2m, incl. 10% waste) | 8 | $176 |
| Joint compound | 1 boxes | |
| Screws | ≈320 | |
| Hang, set & sand labour | 19.2 m² | $346 |
How we estimate this
Standard sheets are 2.4×1.2m (2.88m²). This calculator works out how many you need (plus 10% for cuts and waste), along with screws and joint compound.
Pricing reviewed: October 2026.
Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding plasterboards in Australia
Standard sheets are 2.4×1.2m (2.88m²). This calculator works out how many you need (plus 10% for cuts and waste), along with screws and joint compound.
Ceilings and feature walls may need more cutting. The bill of materials helps you order the right number of sheets and estimate the labour.
Frequently asked questions
How many plasterboard sheets do I need?
Divide your area by 2.88m² (a standard sheet) and add ~10% for cuts. The calculator does this and estimates screws and compound.
How much compound and screws do I need?
Roughly one box of compound per 40m² and about 40 screws per sheet. The calculator estimates both.
How much does plastering cost?
Supplied and installed, plasterboard is typically $30–$60/m² in 2026. The calculator separates materials and labour.
Are you a material supplier or hardware store?
Everyone on this page is working out what plasterboard costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.