Finishing calculator
Finish Coverage Calculator
Estimate how much clear coat, stain, sealer, lacquer, or similar finish a job may require.

Coverage is not the same as transfer efficiency
Brushing, wiping and spraying can use very different amounts of material. The coverage printed on the container may assume a smooth, sealed surface and ideal application.
Common reasons a finish runs short
- End grain and porous surfaces absorb more finish.
- Spray equipment leaves material in the cup, hose and overspray.
- Sanding between coats may require another coat.
- Edges, test panels and touchups are easy to forget.