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Calculate Paint Coverage

Paint Coverage Formula:

\[ \text{Gallons Needed} = \frac{\text{Area (sq ft)}}{\text{Coverage Rate (sq ft/gallon)}} \]

sq ft
sq ft/gallon

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1. What is Paint Coverage Calculation?

The paint coverage calculation determines how many gallons of paint are needed to cover a given surface area based on the paint's coverage rate. This helps in planning and budgeting for painting projects.

2. How Does the Calculator Work?

The calculator uses the paint coverage formula:

\[ \text{Gallons Needed} = \frac{\text{Area (sq ft)}}{\text{Coverage Rate (sq ft/gallon)}} \]

Where:

Explanation: The calculation divides the total area by the paint's coverage rate to determine how many gallons are needed.

3. Importance of Paint Calculation

Details: Accurate paint calculation prevents over-purchasing (wasting money) or under-purchasing (causing project delays). It also helps estimate project costs.

4. Using the Calculator

Tips: Measure your surface area accurately. Check the paint can for its specific coverage rate (typically 350-400 sq ft/gallon for interior paints).

5. Frequently Asked Questions (FAQ)

Q1: What's a typical coverage rate for paint?
A: Most interior paints cover 350-400 sq ft per gallon. Exterior paints may cover less (250-300 sq ft/gallon).

Q2: Should I buy extra paint?
A: It's recommended to buy 10-20% extra for touch-ups, mistakes, and future repairs.

Q3: Does surface texture affect coverage?
A: Yes, rough or porous surfaces may require more paint than smooth surfaces.

Q4: How do I calculate area for a room?
A: For walls: (Length + Width) × 2 × Height. Don't forget to subtract window/door areas.

Q5: Does paint color affect coverage?
A: Dark colors or drastic color changes may require additional coats, effectively reducing coverage.

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