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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.

Hướng dẫn từng bước

1. 1Calculate total wall/ceiling area in m²
2. 2Divide by sheet area to get sheet count
3. 3Add 10% for cuts around doors, windows, corners, and outlets
4. 4Count fixings: 1 screw per 300mm at perimeter, 300mm grid in field

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