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Fence Picket Calculator

Estimate fence pickets from fence length, picket width and gap between pickets.

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Fence Picket Calculator

Enable JavaScript to use the interactive calculator; the example and formula are described below.

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How to use this fence picket calculator

Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.

Formula and method

Pickets ≈ fence length in inches ÷ (picket width + gap), rounded up.

Example

A 100 ft fence using 5.5 inch pickets with 0.5 inch gaps needs about 200 pickets.

What this calculator is useful for

Estimate fence pickets from fence length, picket width and gap between pickets. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.

Fence Picket Calculator: a practical example

For 100 feet of fence with 5.5-inch pickets and 0.5-inch gaps, estimate how many six-inch modules fit into 1,200 inches.

What the result means

Include gate spans separately if they do not use the same picket spacing.

Limits to consider

Corner posts, end gaps, cuts, rails, and replacement pickets require site-specific adjustments.

Related tools: Square Footage Calculator · Concrete Calculator

Frequently asked questions

What does the Fence Picket Calculator calculate?

Estimate fence pickets from fence length, picket width and gap between pickets.

How does the calculation work?

Pickets ≈ fence length in inches ÷ (picket width + gap), rounded up.

Is this calculator free?

Yes. ERICH Calculators is free to use and no account is required.

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Method, assumptions & corrections

See how formulas, sources and limitations are handled across ERICH Calculators.