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Paint Calculation Formula:
The Dulux Paint Calculator helps UK homeowners and professionals accurately estimate the amount of paint needed for a painting project. It calculates the required litres of Dulux paint based on the area to be painted, the paint's coverage rate, and the number of coats required.
The calculator uses the formula:
Where:
Explanation: The formula divides the total area by the paint's coverage rate to determine the amount needed for one coat, then multiplies by the number of coats for the total requirement.
Details: Accurate paint calculation prevents wastage, saves money, ensures consistent colour matching, and helps plan the project efficiently. Underestimating can lead to project delays, while overestimating wastes resources.
Tips: Measure the area accurately in square metres. Check the paint can for the specific coverage rate (typically 10-16 m²/litre for Dulux paints). Consider adding 10% extra for wastage and touch-ups.
Q1: What is the typical coverage rate for Dulux paint?
A: Most Dulux emulsion paints cover 10-14 m² per litre, while gloss paints cover 12-16 m² per litre. Always check the specific product's coverage rate.
Q2: How do I measure the area accurately?
A: Measure wall height and length, multiply for each wall, then add all walls together. Subtract areas for windows and doors (approximately 2m² per window/door).
Q3: How many coats are usually needed?
A: Most rooms need 2 coats for good coverage. Dark colours over light may need 3 coats. New surfaces often require a primer coat first.
Q4: Should I buy extra paint?
A: Yes, it's recommended to buy 10-15% extra for touch-ups and wastage. Keep leftover paint for future repairs.
Q5: Does surface texture affect coverage?
A: Yes, rough or porous surfaces require more paint. Textured walls may need up to 20% more paint than smooth surfaces.