Coverage Estimates: Results are estimates only. Always verify measurements and consult paint product labels for exact coverage rates, as these can vary significantly by brand and type.
One gallon typically covers 350-400 square feet with one coat, but primer often covers more, and semi-gloss slightly less.
Textured surfaces, porous materials, and dramatic color changes (e.g., painting a dark wall light) may require additional paint and coats.
It's always a good idea to buy 10-15% extra paint for touch-ups, mistakes, and future maintenance.
Application methods (brush, roller, sprayer) can affect paint consumption.