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Polyurethane Coverage Calculator
Estimate polyurethane needed to finish a surface for a number of coats.
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Estimate polyurethane needed to finish a surface for a number of coats.
Polyurethane Coverage Estimator
Enter your numbers below for an instant estimate.
0
π‘ Tip: Thin even coats look better and cure harder than thick ones.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Polyurethane Quick Guide
Typical values for reference.
| Product | Coverage | Coats | Dry Time |
|---|---|---|---|
| Oil based | 450 sq ft/gal | 3 | 8 h |
| Water based | 500 sq ft/gal | 3 | 2 h |
| Spar | 400 sq ft/gal | 3 | 6 h |
| Floor finish | 350 sq ft/gal | 3 | 4 h |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Polyurethane Coverage Calculator FAQ
Answers to common questions about this calculator.
About 400 to 500 sq ft per coat.
Two to three.
Yes, lightly.
Allow about 10%.