The coverage area of a gallon of paint can vary depending on factors such as the type of paint, the surface being painted, the method of application, and the thickness of the coat.
As a general guideline, one gallon of paint typically covers approximately 350 to 400 square feet of surface area with a single coat. However, this estimate can vary significantly depending on the factors mentioned above. For example, textured or porous surfaces may require more paint, while smooth surfaces may require less.
To determine the exact coverage area for your specific project, it's recommended to check the manufacturer's instructions on the paint can or consult with a professional painter. Additionally, conducting a small test patch on the surface you plan to paint can help you gauge the actual coverage area of the paint you're using.