Interior Paint Surface Calculators
Professional interior paint calculators organized by surface type and application area. Calculate accurate paint costs, coverage, and material requirements for walls, ceilings, trim, and complete interior projects.
Wall Surfaces
350-400 sq ft/galPrimary vertical surfaces in interior spaces
Wall Paint
EnhancedGeneral wall painting cost and coverage calculator
Key Considerations:
- • Surface texture
- • Number of coats
- • Color changes
Finish Options:
Room Paint
EnhancedComplete room painting including all wall surfaces
Key Considerations:
- • Room dimensions
- • Door/window deductions
- • Primer needs
Finish Options:
Ceiling Surfaces
400-450 sq ft/galOverhead horizontal surfaces requiring special techniques
Ceiling Paint
EnhancedCeiling painting cost and material calculator
Key Considerations:
- • Height access
- • Texture type
- • Lighting effects
Finish Options:
Trim & Details
500-600 sq ft/galDecorative and functional trim elements
Trim Paint
EnhancedTrim, molding, and detail painting calculator
Key Considerations:
- • Linear footage
- • Detail complexity
- • Brush vs spray
Finish Options:
Complete Solutions
VariableComprehensive interior painting projects
Interior Paint
Complete interior painting project calculator
Key Considerations:
- • All surfaces
- • Multiple rooms
- • Coordination
Finish Options:
Surface Painting Characteristics
Surface | Area Type | Complexity | Application | Dry Time | Coats |
---|---|---|---|---|---|
Walls | Largest surface area | Moderate | Roller with brush for edges | 2-4 hours | 2 coats typical |
Ceilings | Room floor area equivalent | High (overhead work) | Roller with extension pole | 2-4 hours | 1-2 coats typical |
Trim | Linear measurement | High (detail work) | Brush application primarily | 4-6 hours | 2-3 coats typical |
Interior Paint Finish Guide
Flat
0-5%Ceilings, low-traffic walls
Pros:
- • Hides imperfections
- • Non-reflective
- • Easy touch-up
Cons:
- • Not washable
- • Shows marks easily
Eggshell
10-25%Living rooms, bedrooms
Pros:
- • Slight sheen
- • Washable
- • Durable
Cons:
- • Shows brush marks
- • Moderate hiding
Satin
25-35%Kitchens, bathrooms, trim
Pros:
- • Easy to clean
- • Moisture resistant
- • Durable
Cons:
- • Shows imperfections
- • Brush marks visible
Semi-gloss
35-70%Trim, doors, high-moisture areas
Pros:
- • Very washable
- • Moisture resistant
- • Durable
Cons:
- • Shows all imperfections
- • Requires perfect prep
Surface Painting Techniques
Rolling
Best For:
Most efficient for large flat surfaces
Tips:
- • Use proper nap length
- • Maintain wet edge
- • Work in sections
Brushing
Best For:
Precision application for detailed work
Tips:
- • Quality brush essential
- • Proper loading
- • Smooth strokes
Spraying
Best For:
Fast application with professional results
Tips:
- • Proper masking
- • Thin coats
- • Consistent pattern
Interior Surface Painting Tips
Surface Preparation
- • Clean all surfaces before painting
- • Fill holes and sand smooth
- • Prime when changing colors dramatically
- • Remove or mask hardware and fixtures
Application Order
- • Paint ceilings first
- • Paint walls second
- • Paint trim and details last
- • Allow proper drying time between coats