Fence Stain Calculator

The Fence Stain Calculator tells you exactly how many gallons of stain you need to cover your fence, so you don't overbuy at the hardware store or run short mid-project. Enter your fence height, total fence length, fence type, and sides to stain, then set your number of coats, coverage per gallon, and wood condition. You'll get the total stain needed in gallons, stain per coat, total square footage, and an estimated stain cost.

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Typical range: 250-400 sq ft per gallon

Results

Total Stain Needed

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Stain Needed per Coat

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Total Square Footage

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Estimated Stain Cost

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Frequently Asked Questions

How many gallons of stain do I need for my fence project?

The amount depends on your fence dimensions, type, and number of coats. A typical 6-foot tall, 100-foot long privacy fence requires about 4-6 gallons for two coats, assuming standard coverage of 300 sq ft per gallon.

Does weathered wood require more stain than new wood?

Yes, weathered and rough wood is more porous and absorbs more stain than smooth, new wood. You may need 20-30% more stain for aged or rough wood surfaces compared to new lumber.

What's the difference in stain coverage between fence types?

Privacy fences and board-on-board fences typically require more stain due to their solid construction, while picket fences use less due to spacing between boards. Shadow box fences fall in between.

How often should I restain my fence?

Most wood stains should be reapplied every 2-3 years, while paint can last 3-5 years. The frequency depends on weather exposure, wood type, and stain quality.

Should I stain one side or both sides of my fence?

Staining both sides provides better protection and appearance, especially for privacy fences. However, you can save money by staining only the visible side, though this may reduce the fence's lifespan.

What coverage can I expect per gallon of stain?

Most wood stains cover 250-400 square feet per gallon, with 300 sq ft being typical. Semi-transparent stains often have higher coverage than solid stains, and coverage decreases on rough or porous wood.

How do I calculate the square footage of my fence?

Multiply fence height by length for one side. For both sides, double this number. Remember to account for the fence type - solid fences use the full calculation, while picket fences may use 70-80% due to spacing.

What factors affect stain coverage and cost?

Coverage is affected by wood condition, stain type, application method, and weather. Rough or weathered wood requires more stain, while smooth surfaces need less. Premium stains cost more but often provide better coverage and durability.