Exterior calculator

Fence Stain Calculator

Estimate stain for one or both fence faces with coats and product coverage. Switch between US customary and metric units, adjust the assumptions, and keep every step visible.

01 Measure02 Allow03 Order

Project inputs

Use one unit system throughout. Defaults show a realistic example; replace them with measurements from your project.

Unit system

Fence lengthExample input — replace with your project value.ftFence heightExample input — replace with your project value.ftFaces coatedPlanning default — verify the selected product or project specification.CoatsExample input — replace with your project value.Coverage per gallon / literPlanning default — verify the selected product or project specification.ft²Waste allowanceEditable planning allowance for cuts, breakage, compaction, or site loss.%Price per gallonOptional local price; enter zero to hide the cost estimate.currencyCurrencyPlanning default — verify the selected product or project specification.

Measurement guideMeasure the full run and height; subtract gates or openings where requested.

Measure the finished shape. Posts, rails, gaps, rough texture, overspray, and absorption affect actual use. Check the selected stain label.

Estimate matches the inputs shown.

ReviewedNovember 2, 2026

ByBuildGauge Editorial Team

ScopeFormula, defaults & sources

Report an issue ↗

The calculation

A visible formula, not a black box.

Gallons & liters · Mathematical derivationstain = fence length × height × faces × coats × waste factor ÷ labeled coverage

Inputs are converted to a common base unit before calculation. Purchase quantities are rounded only at the final buying boundary.

Example inputDefaultStatus

Fence length100 ftReplace with measurement

Fence height6 ftReplace with measurement

Faces coated2 Planning default — verify

Coats2 Planning default — verify

Coverage per gallon / liter300 ft²Planning default — verify

Waste allowance10 %Planning default — verify

Price per gallon45 currencyPlanning default — verify

CurrencyUSD Planning default — verify

Worked example

Example: planning fence stain

Using the editable example inputs—fence length 100 ft, fence height 6 ft, faces coated 2—the calculator returns 9 US gal. Replace every example with measured dimensions and the selected product label before purchase.

Use this to understand the workflow—not as a recommendation for your project.

Sources & scope

What supports this calculation.

Industry guidanceOmni fence stain directory ↗

Supports the product rule or estimating basis used by the Fence Stain Calculator; geometry and unit conversion remain visibly derived in the calculator.

Mathematical derivationNIST SI conversion factors ↗

Exact length, area, and volume unit conversions; the project formula is derived from standard geometry.

Common mistakes

Check the job, not just the number.

01Leaving the example fence stain inputs unchanged instead of entering measured project values.
02Treating an editable coverage, size, density, or allowance as universal instead of checking the selected product label, project documents, and local requirements.
03Ordering from the rounded result without reviewing exclusions: Posts, rails, gaps, rough texture, overspray, and absorption affect actual use. Check the selected stain label.

Questions, answered

Fence stain FAQ

What does the Fence Stain Calculator estimate?

Estimate stain for one or both fence faces with coats and product coverage. The primary output is gallons & liters, with the intermediate assumptions kept visible.

How is the fence stain result calculated?

The visible formula is: stain = fence length × height × faces × coats × waste factor ÷ labeled coverage. Inputs are converted to a common base unit before the final purchase boundary is rounded.

Are the default values recommendations?

No. Dimensions are worked examples and product-dependent presets are planning defaults. Replace them with the selected product label, project documents, and local requirements.

Is the result ready to order from?

Use it as a checked planning estimate, then confirm packaging, minimum orders, installation instructions, site conditions, and any code or professional-design requirements.