DIY & materials
Plasterboard sheets Calculator
Calculate sheet quantities for walls, ceilings and multiple layers. This free plasterboard sheets calculator shows the calculation and its assumptions so you can compare your own figures.
Your results
Calculate sheet quantities for walls, ceilings and multiple layers.
Calculated outcomes
- Net Area M2
- 55 m²
- Order Area M2
- 60.5 m²
Assumptions and estimates
- Method: Order area = net surface area × layers × waste factor. Sheets = order area ÷ sheet area, rounded up.
- Area-only estimate; framing centres, sheet orientation, edge support and cut reuse affect the exact take-off.
Useful next steps
- Use Compare options to test an alternative side by side.
- Copy, print or download a record of this calculation when you need one.
Reports open your email app addressed to s@s1.ie with the public page address only. Your inputs are never added.
How the plasterboard sheets calculation works
Order area = net surface area × layers × waste factor. Sheets = order area ÷ sheet area, rounded up.
Area-only estimate; framing centres, sheet orientation, edge support and cut reuse affect the exact take-off.
Using this calculator
- Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
- Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
- Review sheets and material cost, then read the stated assumptions and eligibility conditions before using the result.
Worked example
This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.
See example inputs
- Wall area (m²)
- 40
- Ceiling area (m²)
- 20
- Opening area (m²)
- 5
- Sheet length (m)
- 2.4
- Sheet width (m)
- 1.2
- Waste allowance (%)
- 10
- Layers
- 1
- Price per sheet (€)
- 15
- Sheets
- 22
- Material Cost
- €330.00