What the Paint Finish Selector actually calculates
Fixed rules favor satin for kitchens and bathrooms, semi-gloss for trim, and flat for ceilings. Living areas and bedrooms use eggshell unless cleaning is high. Noticeably uneven surfaces switch to matte except in kitchens, bathrooms, and on trim. This selects a sheen category, not a verified moisture or scrub-resistance specification.
The calculation path
The recommendation balances moisture resistance, washability, glare, and how strongly a finish reveals imperfections.
Inputs that can change the answer
- Room or surface: Select the applicable room or surface from the listed choices.
- Surface condition: Select the applicable surface condition from the listed choices.
- Cleaning frequency: Select the applicable cleaning frequency from the listed choices.
Checks that stay outside the formula
Higher sheen is generally tougher but highlights surface defects.
A practical order for entering the data
- Choose the room or surface being painted.
- Describe the surface condition and how frequently it needs cleaning.
- Compare the suggested sheen with the chosen product's suitability and preparation instructions.
Project walkthrough: Choose a paint finish and test colour before buying
Engine check using the prefilled sample
Paint and colour example: room or surface = Living areas, surface condition = Minor flaws and cleaning frequency = Medium. Use these numbers to follow the calculation, then substitute the dimensions, coverage, coats, or preferences that match your room.
Results for these inputs
- Recommended finish
- Eggshell
A practical balance of washability and restrained reflection.