The formula
Boarded area = width × height × number of surfaces − openings. Sheet count = boarded area × (1 + waste%) ÷ sheet area, rounded up.
Indoors • UK CALCULATOR
Plasterboard Calculator UK
Estimate plasterboard sheets from the surface width, height and number of identical surfaces. Change the sheet size to match the exact product you intend to buy.
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Your estimate starts here
Enter your measurements and calculate to see materials, quantities and an optional price estimate.
GOOD TO KNOW
How this calculator works
Worked example
A wall 4 m wide and 2.4 m high has an area of 9.6 m². A 2400 × 1200 mm sheet covers 2.88 m² before cuts.
Check before ordering
An area-only estimate can undercount awkward offcuts and staggered joints. Fire, acoustic and moisture requirements may dictate specific boards and methods. Fixings, tape, jointing compound and framing are not included.