Free Painting Estimate Template 2026 — Interior and Exterior Quote Guide

A professional painting estimate does more than quote a price. It tells the homeowner exactly what they're getting: how many coats, which brand of paint, what surface prep is included, and how long the warranty is. Contractors who send detailed, branded proposals consistently win more jobs than those who text a number.

This guide covers interior and exterior estimate line items, how to calculate paint quantities, what to charge in 2026, and how AI tools can turn job site photos into a complete proposal in minutes.

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Interior Painting Estimate Line Items

Measuring Wall Square Footage

The foundation of any interior estimate is accurate surface area calculation. Here's the standard method: Wall SF by room:

`(Room perimeter in LF) × (Ceiling height in feet) − (doors × 21 SF) − (windows × 15 SF)`

For an average bedroom: `(12 + 10 + 12 + 10) × 9 − (1 × 21) − (2 × 15) = 396 − 21 − 30 = 345 SF of wall` Ceiling SF: Length × Width of the room (straightforward unless vaulted) Trim linear footage:

Count base molding LF (room perimeter), window and door casing LF, crown molding LF if applicable. Convert LF to SF for paint calculation: `LF × 0.5 = approx SF` for standard base/casing.

Interior Line Items

| Item | Qty | Unit | Unit Price | Total |

|---|---|---|---|---|

| Wall prep (patching, sanding, prime spots) | 1,240 | SF | $0.25 | $310.00 |

| Primer (walls, new drywall or repairs) | 1,240 | SF | $0.30 | $372.00 |

| Wall paint (2 coats) | 1,240 | SF | $1.50 | $1,860.00 |

| Ceiling paint (1 coat flat) | 480 | SF | $0.90 | $432.00 |

| Trim paint (base, casing, crown) | 210 | LF | $1.20 | $252.00 |

| Door paint (both sides + jamb) | 4 | door | $65.00 | $260.00 |

| Protection (floor protection, tape, plastic) | 1 | lot | $95.00 | $95.00 |

| Labor & materials subtotal | | | | $3,581.00 |

Interior Scope Description Example

> "Repaint interior of master bedroom, second bedroom, and hallway. Includes: patch and sand all surface imperfections, spot prime as needed, two coats of [Brand] eggshell paint on all walls, one coat flat ceiling paint, semi-gloss paint on all trim (base, casing, and crown). Protect all flooring with paper and plastic. Remove and reinstall all outlet covers and light fixtures. Color selection by owner from provided palette."

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Exterior Painting Estimate Line Items

Exterior estimates carry higher material costs, more prep labor, and greater variability based on surface condition. Always include a site visit before quoting.

Measuring Exterior Wall SF By elevation: Measure each face of the building separately (front, rear, left side, right side). For each elevation: `Width × Height − large openings (windows, garage doors, doors)`

For a 2,000 sq ft ranch home with 8 ft walls:

• Front: 40 × 8 = 320 SF − (windows + doors) ≈ 260 SF
• Rear: 40 × 8 = 320 SF − openings ≈ 280 SF
• Left/Right: 28 × 8 = 224 SF each − openings ≈ 190 SF each
• Total walls: ≈ 920 SF

  Add fascia and soffit: measure LF of fascia and convert to SF. Standard 6" fascia: `LF × 0.5 = SF`.

  Exterior Line Items

  | Item | Qty | Unit | Unit Price | Total |

  |---|---|---|---|---|

  | Pressure washing | 920 | SF | $0.35 | $322.00 |

  | Scraping and sanding (moderate condition) | 920 | SF | $0.40 | $368.00 |

  | Caulking (windows, doors, trim joints) | 280 | LF | $1.50 | $420.00 |

  | Spot putty / wood filler (minor repairs) | 1 | lot | $145.00 | $145.00 |

  | Primer (bare wood or repairs) | 920 | SF | $0.50 | $460.00 |

  | Exterior wall paint (2 coats) | 920 | SF | $2.50 | $2,300.00 |

  | Fascia paint (2 coats) | 260 | LF | $2.00 | $520.00 |

  | Soffit paint (1 coat) | 180 | SF | $1.50 | $270.00 |

  | Trim / shutters / accents | 1 | lot | $380.00 | $380.00 |

  | Masking and protection | 1 | lot | $125.00 | $125.00 |

  | Labor & materials subtotal | | | | $5,310.00 |

  For two-story homes, add a scaffolding or lift line item ($300–$800 depending on duration and rental source).

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  Paint Quantity Formula

  Buying too little paint creates problems mid-job. Buying too much wastes money. Use this formula: Gallons needed:

  `(Surface SF ÷ 350) × number of coats × 1.10 (10% waste factor)`

  350 SF per gallon is the manufacturer's coverage rate for most interior paints. Rough or heavily textured surfaces may drop to 300 SF/gallon — adjust for texture. Example: 1,240 SF of walls, 2 coats, standard surface

  `(1,240 ÷ 350) × 2 × 1.10 = 3.54 × 2 × 1.10 = 7.8 gallons → order 8 gallons` Ceiling flat paint: coverage is often higher (400–425 SF/gallon on smooth drywall) — check your specific product. Trim paint: LF ÷ 100 per quart per coat (standard 3.5" base) — most painters use a quart per 100 LF of base molding as a rough rule.

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  Labor Rate Guidance for 2026

  Painting labor rates vary significantly by region and surface condition. These are national mid-range benchmarks:

  Interior Labor

  | Surface | Rate Range |

  |---|---|

  | Walls (prep + 2 coats) | $1.50–$3.00 per SF |

  | Ceilings (1 coat flat) | $0.75–$1.50 per SF |

  | Trim (base + casing) | $0.50–$1.00 per LF |

  | Doors (both sides + jamb) | $50–$90 per door |

  | Cabinet painting (labor only) | $75–$150 per door/drawer front |

  Exterior Labor

  | Surface | Rate Range |

  |---|---|

  | Siding walls (prep + 2 coats) | $2.00–$4.00 per SF |

  | Fascia/soffit | $1.50–$3.00 per LF |

  | Trim and accents | $1.50–$3.00 per LF |

  | Pressure washing (add-on) | $0.25–$0.50 per SF |

  | Heavy scraping and prep | $0.50–$1.50 per SF additional |

  Add 15–25% for two-story or high-access areas. Subtract 10–15% for new construction (cleaner surfaces, faster work).

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  What Makes Painting Proposals Win Jobs

  Price is almost never the only factor. Here's what separates the proposals that convert from the ones that get ghosted: 1. Before photos documenting existing condition

  Take 6–10 photos during your walkthrough: peeling areas, cracks, stained walls, damaged trim. Include 3–4 of these in the estimate. This does two things — it shows you actually looked at the job (not guessing), and it protects you if the homeowner later claims damage. 2. Specify the paint brand and product name

  "Two coats of paint" is vague. "Two coats of Sherwin-Williams Duration Exterior in Emerald Acrylic Satin" tells the homeowner exactly what they're buying. Named products with published specs are harder for competitors to undercut on perceived quality. 3. State the number of coats explicitly

  Homeowners don't know that "painting a room" could mean one coat or three. Contractors who specify "two full coats" in writing are less likely to get pushback at final payment about whether they actually painted it twice. 4. Include your warranty

  A 1–2 year workmanship warranty for interior work, 2–3 years for exterior, is standard for professional painters. Putting it in writing at the quote stage signals confidence and professionalism. 5. Make the payment terms clear

  A 30–40% deposit with balance due on completion is standard for projects over $2,000. State it in the estimate. Homeowners who are ready to hire want to know the next step — don't make them ask.

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  How AI Estimating Works for Painting Contractors

  Traditional painting estimates take 30–60 minutes per job: walk the rooms, measure, calculate SF, look up paint quantities, enter line items, format the document. For a contractor doing 8–15 quotes per week, that's 4–8 hours of administrative work every week.

  AI painting estimation tools like Ontrakt work differently:

  1. Upload photos from the walkthrough — room corners, condition close-ups, exterior elevations, trim details

  2. The AI analyzes the images — detects room dimensions from corner angles, assesses surface condition (peeling, cracks, stains), identifies surface types (drywall, wood, brick)

  3. Line items are generated automatically — SF per surface, paint quantities, prep labor — all populated from your price book

  4. You review and adjust — modify quantities or add custom line items before sending

  5. Send from your phone — the client gets a professional PDF with before photos, full line items, payment terms, and a link to approve and pay

  From job walkthrough photos to sent proposal: under 3 minutes.

  For painting contractors who lose jobs to competitors simply because they were slower to quote, AI estimating eliminates that disadvantage entirely. Send the proposal in the truck before you've driven off the street.

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  Get a Free Painting Estimate Template + AI Estimating

  Ontrakt includes interior and exterior painting estimate templates pre-loaded in your price book at signup. You can use them as-is, customize your rates, or let the AI populate them from job site photos.

  Beta program gives qualifying contractors 6 months of full Pro access at no cost. Try Ontrakt free for 6 months →