Plasterboard Calculator | How Many Plasterboards do you Need

This plasterboard calculator is designed to help you determine the number of plaster boards needed to cover a wall of specific dimensions.

Whether you’re working on a renovation project or planning new construction, accurately estimating the amount of plasterboard you’ll need is essential.

With accurate measurements at your fingertips, you can confidently proceed with your project, ensuring efficient use of materials and minimizing waste.

Plasterboard Calculator

Our user-friendly calculator helps you determine the number of plasterboard sheets required for your walls.

Calculate How Many Plasterboards You Need

Simply input the dimensions of the wall in metres and click the “Calculate” button to get your results.

Embarking on a cement rendering project why not use our render calculator.


How do I calculate how much plasterboard I need?

  • Enter the length and width of your wall or ceiling in metres.
  • Select the size of the plasterboard you are using from the drop-down menu. The common sizes are 2.4 x 1.2 metres or 8 x 4 feet.
  • Click on the Calculate button to see the results. The calculator will show you how many plasterboards you need.

How many plasterboard screws per m2?

The number of screws you need per m2 depends on the thickness of the plasterboard you are using. For 12.5mm plasterboard, you will need about 30 screws per m2. For 9mm plasterboard, you will need more screws, and for 15mm plasterboard, you will need fewer screws.

How many square meters is 1 plasterboard?

The area of 1 standard size plasterboard sheet measuring 2.4m x 1.2m is 2.88 square metres.

UK Plasterboard Sizes – Area of a board

Dimensions (mm) Dimensions (ft) Area (m²) Area (ft²)
2400 x 1200 8 x 4 2.88 30.96
1800 x 1200 6 x 4 2.16 23.25
1200 x 900 4 x 3 1.08 11.61

Author Profile

Mark Cullen
Mark Cullen
I have many qualifications and certificates in construction, such as City & Guilds, CPCS and CITB. These are the highest standards of training and competence in the industry. Whether you need help with plumbing, carpentry, bricklaying or any other trade, I’m here to help you succeed.