Basements present unique challenges: moisture, concrete block walls, and below-grade conditions all affect paint performance. Our estimates below include primer for proper sealing. Moisture-blocking primer is critical for basement painting success.
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Paint Needed
5
gallons
Primer Needed
2
gallons
This covers 493 square feet with 2 coats of standard paint.
Use moisture-blocking primer first. Consider waterproofing paint for below-grade walls. Add 30% extra for concrete block.
Based on a 20x15 ft room with 8-ft ceilings, 1 door(s), and 4 window(s). Paint at 400 sq ft/gallon with 15% waste buffer.
Everything you need to get professional results.
Moisture-blocking primer that seals concrete and masonry basement walls.
Shop PrimerBasement-grade paint with built-in mold and mildew protection for below-grade walls.
Shop PaintRollers, brushes, tape, and drop cloths for basement painting projects.
Shop SuppliesProduct links go to Amazon.com
A standard 20x15 basement with 8-foot ceilings needs about 4-5 gallons for two coats, plus 3-4 gallons of primer. Concrete block walls absorb significantly more paint than drywall—add 30% extra for block walls.
Yes. Use moisture-resistant, mold-resistant paint for basements. For bare concrete or block walls, apply waterproofing primer first. Regular interior paint will peel and fail in damp basement conditions.
Primer is essential for basements. Bare concrete, block, and new drywall all require primer for proper adhesion and moisture blocking. Skipping primer in a basement almost always leads to peeling and paint failure.
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