Paint Calculator
Estimate gallons needed for smooth or heavily textured Florida walls. Easily account for primer coats and opening deductions.
How to Use the Paint Calculator
Ordering the correct amount of paint prevents mid-project delays and minimizes leftover waste. Our Paint Calculator takes the guesswork out of estimating interior and exterior painting projects by calculating precise wall areas and accounting for openings.
Calculating Paintable Area
The tool determines the total wall perimeter and multiplies it by the ceiling height. Crucially, it then subtracts the square footage of doors and windows, providing the net "paintable area." You can estimate a single room or add multiple rooms for a whole-house project.
Key Factors in Paint Estimating
- Surface Texture: Florida homes frequently feature heavily textured walls (like knockdown, orange peel, or skip trowel). Textured surfaces have more physical surface area than flat drywall, meaning they absorb more paint and require a lower coverage rate (e.g., 300 sq ft per gallon instead of 350-400).
- Number of Coats: High-quality finishes usually require at least two coats for proper color depth and durability. Changing from a dark color to a light color may require three coats or a dedicated primer.
- Primer: New drywall (Level 4 or 5 finish) absorbs paint rapidly. A coat of PVA primer seals the drywall, reducing the amount of more expensive topcoat paint required.
Cost Optimization
Paint is typically sold in 1-gallon and 5-gallon buckets. Because a 5-gallon bucket is usually priced similarly to 3.5 individual gallons, our calculator automatically optimizes your purchase, suggesting a 5-gallon bucket whenever your requirement exceeds 3.5 gallons.
