Painting Cost Estimating: Cost Per Square Foot, Labor, and Paint Pricing

A painting cost estimate is just three buckets: material, labor, and everything else that keeps the business running. This guide shows you the unit prices, labor rates, and markup math that turn a takeoff into a bid that wins work and still makes money.

1. Painting Cost Per Square Foot

The most common question in the whole trade is "what is the painting cost per square foot?" The honest answer is: it depends on the substrate, the coat system, the height, and the market. But here are solid 2026 ranges you can sanity-check any bid against.

Interior painting rough ranges (2026)

• New drywall, 2-coat latex system: $0.85–$1.85 per SF of wall area.
• Per SF of floor area on a typical 9-ft ceiling project: $1.50–$3.50.
• Repaint, clean surface, same color: $0.65–$1.40 per SF of wall.
• CMU block, block filler plus 2 coats: $1.50–$2.75 per SF.
• Paint-grade doors and frames: $85–$175 each side installed.

Exterior painting rough ranges (2026)

• Wood siding: $2.00–$4.00 per SF.
• Smooth stucco or EIFS: $1.75–$3.25 per SF.
• CMU block: $2.25–$4.00 per SF.
• Metal siding: $1.50–$3.00 per SF.

2. Labor Rates and Productivity

Labor is where most painting jobs win or lose. You need two numbers: the painting labor rate (cost per hour) and painting labor productivity (SF per hour).

Hourly labor rates

• Open-shop painter base wage (US 2026): $28–$45/hr.
• Open-shop fully burdened (taxes, insurance, workers comp, benefits): $55–$85/hr.
• Union painter base: $45–$70/hr + $20–$35/hr fringe.
• Apprentice or helper: $18–$28/hr base.
• Foreman: +$5–$12/hr over journeyman rate.

Production rates

These come from PDCA standards and real field data. One painter, solo, average conditions:

• Brush-and-roll new drywall, 2 coats: 150–200 SF/hr.
• Spray-and-back-roll new drywall: 400–600 SF/hr.
• CMU block, brush-and-roll: 100–150 SF/hr.
• Stucco spray: 500–800 SF/hr.
• Doors fully painted both sides and frame: 4–8 per day.

3. Paint Material Cost

Paint itself is cheaper than people think, usually 15 to 30 percent of total job cost. Still, pricing it right matters for bid accuracy.

Typical contractor pricing per 5-gallon pail

• Economy (SW ProMar 200, BM Ultra Spec, PPG Speedhide): $150–$220.
• Mid-grade (SW ProMar 400, BM Regal Select): $200–$275.
• Premium (SW Emerald, BM Aura, PPG Diamond): $280–$380.
• PVA drywall primer: $80–$130 per 5-gal pail.
• Block filler: $140–$210 per 5-gal pail.
• Epoxy floor kit (2 parts): $400–$800 per 5-gal kit.

Calculating paint cost per SF

Per gallon cost divided by SF covered per gallon equals paint cost per SF of surface. Example: $180 per 5-gal ÷ 5 = $36/gal. At 350 SF/gal that is $0.103 per SF per coat, or about $0.21/SF for 2 coats before waste. Add primer at maybe $0.08/SF for one coat. Total paint material runs roughly $0.28–$0.35 per SF on a standard 2-coat interior system.

4. Waste Factor Pricing

Waste factor is a number you add to paint gallons to cover what ends up in trays, on rollers, and in the air as overspray. Ignore it and the crew runs out halfway through the job.

Standard painting waste factors

• Smooth walls, brush and roll: 5–7%.
• Textured surfaces, CMU, stucco: 10–15%.
• Spray application: 10–20% due to overspray.
• Deep or dark color bases: add an extra 5%.

What waste factor costs you

On a $2,500 paint material order, a 7 percent waste factor adds $175. Skipping it saves nothing because you will either run out (emergency retail run adds far more) or bid wrong and lose the job to someone who priced it right.

5. Overhead and Burden

Overhead covers everything your shop spends that is not on the jobsite: rent, trucks, insurance, office staff, estimating software, spray pumps, ladders, advertising. You cannot skip it.

Calculating shop overhead

Add up all non-jobsite annual expenses. Divide by total billable labor hours per year. That is your overhead cost per labor hour. Typical commercial paint shops run $15–$35 per billable hour in overhead. Some estimators roll overhead into the hourly rate. Others apply it as a percentage (10–20%) to direct cost at the bottom of the bid.

Labor burden

Labor burden is the stuff on top of base wage: FICA, FUTA, SUTA, workers comp (painting is a high-risk class, often 8–15% of payroll), general liability, health insurance, PTO. Total burden typically runs 35–55% of base wage. That is why a $35/hr painter costs your company about $55/hr fully loaded.

6. Markup and Profit

Markup is the profit piece you layer on top of direct cost plus overhead. Without it the business does not grow and the owner does not get paid.

Typical painting markup

• Large commercial: 10–15% profit on top of direct + overhead.
• Mid-size commercial: 15–25%.
• Residential repaint: 25–40%.
• Specialty (faux, epoxy, coatings): 35–75%+.

Margin vs markup

Markup and margin are not the same. A 25% markup on $100 gives you $125 with $25 profit. That is a 20% gross margin ($25/$125). Confusing these two is a very common way contractors under-earn. Always check whether you are working in markup or margin.

7. Pricing Prep Work

Prep work is the hidden cost that kills paint bids. It includes patching, caulking, sanding, pressure washing, scraping, priming bare spots, and masking.

Typical prep adders

• Light prep, new construction: already in the base rate.
• Moderate repaint prep (patch holes, caulk, sand): $0.25–$0.75 per SF.
• Heavy prep (peeling paint, water damage, lead-safe work practices): $1–$3 per SF.
• Pressure wash exterior: $0.15–$0.40 per SF of surface.
• Lead abatement (if building is pre-1978): separate specialty bid, often $8–$25 per SF.

8. Extras and Additives

Things estimators forget to include in their painting unit pricing:

• Mobilization and demobilization: $250–$2,500 depending on job size.
• Boom lift or scissor lift rental: $300–$600/day.
• Scaffold rental: $1.50–$4 per SF of scaffold face.
• Drop cloths, plastic, masking tape: 1–3% of paint material cost.
• Sales tax on materials: varies by state, 0–10%.
• Bond premium (performance/payment bond on public work): 0.75–2% of contract.
• Project management time: 3–8% of direct labor.

9. Regional and Market Factors

Painting pricing swings hard by region. A $1.25/SF job in rural Alabama would be $2.80/SF in San Francisco for identical scope. Factors that move the number:

What drives regional pricing

• Local labor market: union density, prevailing wage rules, cost of living.
• Workers comp rates: range from ~8% of payroll in favorable states to 20%+ in CA/NY.
• Paint supplier competition: big metros often have better contractor pricing.
• Permit and licensing: some jurisdictions require licensed contractors with bond/insurance minimums.
• Project size: mega-projects get volume discounts on paint, small jobs do not.

10. Putting the Bid Together

A complete painting estimating cost sheet should flow: quantities → paint material (with waste) → labor hours × burdened rate → prep adders → equipment rentals → sales tax → subtotal → overhead → profit → bid price. Make every line visible to yourself even if the client only sees the final number. That way when you win the job and actuals come in, you can see exactly where you were right and where you were wrong, and adjust the next one.