A drywall (plasterboard) calculator estimates the number of sheets needed to line walls or ceilings of a room. Standard UK sheets are 2400×1200mm (or 2.88 m²); 4×8 ft sheets (3.07 m²) are standard in North America.
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Pro Tip
Stagger vertical joints so they don't align on adjacent rows — this dramatically improves wall rigidity and reduces visible cracking.
References
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