Fence Paint Calculator
Calculate gallons of paint or stain needed for a fence.
Fence Paint Calculator
What This Calculator Does
The Fence Paint Calculator estimates how much paint or stain you need for a wood fence. Enter the fence area in square feet to get the gallons required for one or two coats, plus the estimated cost of materials. This rough cost range helps you budget for your fence finishing project.
Painting or staining a wood fence protects it from weather, UV damage, and rot. A quality exterior paint or stain job extends fence life by 5-10 years. Coverage depends on wood type - smooth, planed wood covers better than rough-sawn or weathered wood. Always verify coverage rates on the specific product label before purchasing.
How to Use
- Measure the fence length and height in feet, then calculate the total area (ignore post spacing).
- Select whether the fence is smooth (planed) or rough (unplaned/weathered).
- Choose one coat or two coats (two recommended for new or bare wood).
- Enter the area into the calculator above.
- Buy all paint at once to ensure color consistency across batches.
Worked Examples
Full Privacy Fence Paint Job
A 150 ft long by 6 ft tall wood privacy fence needing two coats of solid acrylic paint on both sides.
- →Total fence area: 150 ft x 6 ft = 900 sq ft per side. Both sides: 900 x 2 = 1,800 sq ft.
- →Rough-sawn wood coverage at 150 sq ft per gallon: 1,800 / 150 = 12 gallons per coat.
- →Two coats: 12 x 2 = 24 gallons needed. At $35 per gallon: 24 x $35 = $840 for paint.
- →Primer: 1,800 / 200 = 9 gallons at $25 each = $225. Pressure washer rental: $200.
- →Labor if doing it yourself: approximately 25 hours at your own time. Contractor rate: $1-$2 per sq ft = $1,800-$3,600.
Result: A 150-ft privacy fence needs approximately 24 gallons of paint for two coats, totaling about $1,050-$1,300 in materials including primer.
Use a paint sprayer with a fence shield attachment — it applies paint 5x faster than a roller and uses 20% less paint. Back-rolling after spraying ensures better adhesion on rough-sawn wood.
Reference Table
| Fence Size | Sq Ft (1 Side) | 1 Coat (gal) | 2 Coats (gal) | Paint Cost (2 coats) |
|---|---|---|---|---|
| 50 ft x 6 ft | 300 | 1.5 | 3 | $90-$180 |
| 100 ft x 6 ft | 600 | 3 | 6 | $180-$360 |
| 150 ft x 6 ft | 900 | 4.5 | 9 | $270-$540 |
| 200 ft x 6 ft | 1,200 | 6 | 12 | $360-$720 |
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