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Fence Staining Calculator

Calculate stain gallons, number of coats, primer, and total cost for any fence staining or painting project. Supports multiple fence sections, wood types, gates, and stain transparency.

Entry Mode

Linear Feet: total fence length × height. Board Count: enter individual board dimensions.

Fence Sections (up to 8)

Subtract Gates optional

Subtract gate openings or sections you won't stain.

Wood & Surface Type

2 coats recommended for semi-transparent stain on new wood.

Primer

Recommended for bare, new, or heavily weathered wood. Primer coverage: ~200 sq ft/gallon.

Cost Inputs optional

Typical range: $25–$75/gallon

DIY labor rate ~$0. Pro rate: $40–$80/hr

Waste / Overage Factor

Net Fence Area

--

sq ft

Area with Overage

--

sq ft

Gallons Per Coat

--

gal/coat

Total Stain Gallons

--

gallons

Primer Gallons

--

gal

Coverage Used

--

sq ft / gallon

Est. Labor Time

--

hours total

Quick Notes

  • Coverage rates vary by brand and wood porosity — always check the label.
  • New pressure-treated wood should dry 6–12 months before staining.
  • Rough-sawn and split-rail fences absorb 30–50% more stain than smooth boards.
  • Labor estimate: ~100–150 sq ft/hour for brush/roller; ~200–300 sq ft/hour for sprayer.
  • Buy 10–15% extra to account for spills, uneven coverage, and touch-ups.

How to Use This Calculator

1

Enter Fence Dimensions

Choose Linear Feet mode for quick entry (length × height per section) or Board Count mode to enter individual board width and count. Add up to 8 sections for L-shaped or multi-run fences.

2

Select Wood Type & Stain

Wood type determines coverage rate. Rough-sawn pine absorbs far more than smooth cedar. Stain transparency affects how many coats you need — solid stains cover in fewer coats but hide grain.

3

Add Cost Inputs

Enter your stain price per gallon, primer cost if needed, and labor rate (leave $0 for DIY). The calculator outputs total material and labor cost so you can compare contractor bids.

Stain Transparency Guide

Clear / Transparent — Maximum UV and water penetration. Shows all wood grain. Requires reapplication every 1–2 years. Best for new, high-quality cedar or redwood.
Semi-Transparent — Most popular choice. Shows grain, provides moderate UV protection. Lasts 2–4 years. Works on most wood types.
Semi-Solid — More pigment, less grain visible. Better UV protection. Lasts 3–5 years. Good for weathered or lower-grade wood.
Solid Color — Hides grain completely like paint. Best UV/moisture protection. Lasts 5–7 years. Only option for very rough or weathered wood.

Wood Type Coverage Guide

Cedar & Redwood — ~200 sq ft/gal

Naturally dense, smooth grain. Low porosity means less stain absorbed per coat. Easier to achieve even coverage.

Pine / SPF / PT Pine — ~150 sq ft/gal

Softer, more porous than cedar. Absorbs more stain per coat. Pressure-treated wood needs to dry fully before staining or stain won't bond.

Rough-Sawn & Split Rail — ~100 sq ft/gal

Highly porous, large surface area. Absorbs significantly more stain. Budget extra product and expect longer application time.

Old / Weathered Wood — ~120 sq ft/gal

Dried-out wood absorbs more stain. Clean and sand before staining. Consider a penetrating oil conditioner first. May need 3 coats for full coverage.

Application Method Guide

Brush — Best Quality

Forces stain into grain. Best penetration and bond. Slowest method (~100 sq ft/hr). Use natural bristle for oil-based, synthetic for water-based stain.

Roller — Good Balance

Faster than brush (~150 sq ft/hr). Works well for solid stains and large flat panels. Use a 3/4 in nap for rough wood, 3/8 in for smooth.

Sprayer — Fastest

Covers ~250–300 sq ft/hr. Ideal for large fences. Requires thinning for some stains. Always back-brush immediately after spraying for penetration. Mask surrounding areas.

Ideal Weather

Apply between 50–90°F. Avoid direct sunlight (causes flashing). Never apply when rain is forecast within 24 hours. Humidity below 85% for best drying.

Surface Prep

Clean fence with a pressure washer or deck cleaner. Sand rough edges. Let dry 24–48 hours. Remove loose paint or old flaking stain. For new PT wood, wait 6–12 months.

Recoat Timing

Wait the manufacturer's recoat window — typically 2–4 hours for water-based, 8–24 hours for oil-based. Applying too soon traps solvents and causes peeling.