🎨 Finish Coverage Calculator

📚 Coverage Factors

Coverage varies based on wood type, porosity, and application method. Always account for waste.

Finish Type	Coverage/gal
Penetrating Oil	400 sq ft
Polyurethane	500 sq ft
Stain	300 sq ft
Shellac	350 sq ft
Lacquer	450 sq ft
Varnish	200 sq ft

💡 Tips

• Porous woods like oak need more finish
• Add 15-25% for first coat on bare wood
• Spray applications typically use less material
• Temperature and humidity affect dry time and absorption