Paint, stain, clear coatWaste-awareCoats included
Finish Coverage Calculator
Estimate how much paint, stain, or finish you’ll need. Great for quoting projects and avoiding that “ran out on the last coat” moment.
Fast estimating workflow
- Measure surfaces (top, bottom, edges if needed).
- Choose coats (primer + finish counts).
- Add waste for roller loss / overspray / soak-in.
- Round up to the nearest container size.
Tip: Porous woods and end grain can drink finish. Plan extra.
Finish Coverage Calculator
Estimate how much paint, stain, or clear finish you’ll need for your project area.
How to use
- Enter your surface area (or dimensions if your component calculates it).
- Select your finish type and expected coverage rate.
- Set number of coats and a waste/overage factor.
- Use the result to buy the next container size up.
Pro tips
- • Spray finishes typically need more overage than brush-on.
- • Edges/end grain can increase consumption dramatically.
- • Primer + paint: count coats separately if you track each product.
FAQs
Why doesn’t the can’s coverage match my results?
Manufacturer coverage assumes ideal surfaces and application. Real projects lose material to texture, porosity, overspray, tray/roller retention, and extra coats for uniform color.
Should I include edges and undersides?
If you finish them, count them. Edges are small but numerous, and they soak finish quickly, especially on plywood and open-grain woods.
What waste factor should I use?
Brush/wipe-on: start around 5–10%. Roller: 10–15%. Spray: 15–30% depending on setup and overspray control. Increase for porous material or small parts.