Trim Paint Calculator

Our Trim Paint Calculator helps you determine the amount of paint required for various trim elements in your home and provides a cost estimate based on your specific requirements.

How to use this calculator:

1. Enter the length and width of each trim piece or section
2. Add multiple trim sections for different areas (baseboards, crown molding, door casings, etc.)
3. Select your preferred paint finish and quality level
4. Specify the number of coats and whether additional priming is needed

Understanding trim paint:

Paint for trim requires different characteristics than wall paint:

• Finish: Higher gloss levels (semi-gloss or high-gloss) are recommended for trim for better durability and a distinctive look
• Coverage: Trim paint typically covers 350-400 square feet per gallon, less than wall paint
• Formulation: Premium trim paints contain more resins for better flow, leveling, and hardness

Common trim types and dimensions:

Pro painting tips:

• Always paint trim before walls, or use painter's tape for protection
• Sand trim lightly between coats for a smoother finish
• Use high-quality angled brushes specifically designed for trim work
• Apply thin, even coats rather than one thick coat
• Allow proper drying time between coats (usually 4-6 hours minimum)

This calculator provides an estimate based on standard coverage rates. Actual paint needed may vary depending on the surface condition, application method, and color change.