Putty Calculator
Calculate wall putty quantity needed from wall area, coats, and coverage rate.
About this calculator
The putty calculator multiplies wall area by the number of coats and divides by the product's per-kg coverage rate to estimate total putty required, plus the number of standard 40kg bags to buy.
Worked example
1,000 sqft wall area, 2 coats, 16 sqft/kg coverage
Result: Putty required = 125 kg (≈ 4 bags of 40kg)
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