Primer Paint Calculator
Calculate primer gallons needed for bare drywall, stained wood, or masonry before painting.
Input Parameters
Enter dimensions and specifications to estimate materials.
Primer Needed
Net Wall Area
417sq ft
Coverage Rate
250 sq ft/gal
1-Gallon Cans
2cans
5-Gallon Pails
0pails
Material estimates include recommended trade waste buffer. Always confirm dimensions on site prior to ordering.
How The Calculation Works
Formulas, material coverage assumptions, waste buffers, and rounding standards.
Primer absorbs heavily into porous surfaces like joint compound, plaster, and bare wood, resulting in 200-300 sq ft/gal coverage compared to 350+ for finish paint.
Subtracts doors and windows to calculate exact net wall coverage.
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Frequently Asked Questions
Practical installation guidance and purchasing tips for primer paint calculator.