Fence Calculator: Estimate Panels, Posts & Concrete

Accurately calculate the exact number of fence panels, posts, rails, and bags of concrete needed for your project. Free, instant, and mobile-friendly calculator.

Full original guide (expanded)

Audit: Complete

Formula (LaTeX) + variables + units

This section shows the formulas used by the calculator engine, plus variable definitions and units.

Formula (extracted LaTeX)

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Formula (extracted text)

$ \text{Total Panels} = \lceil \frac{\text{Total Fence Length (ft)}}{\text{Panel Width (ft)}} \rceil $

Formula (extracted text)

$ \text{Total Posts} = \text{Total Panels} + 1 $

Formula (extracted text)

$ \text{Total Rails} = \text{Total Panels} \times \text{Number of Rails} $

Formula (extracted text)

$ \text{Hole Radius (ft)} = \frac{\text{Hole Diameter (in)} / 12}{2} $ $ \text{Volume per Hole (cu ft)} = \pi \times (\text{Hole Radius (ft)})^2 \times \text{Hole Depth (ft)} $

Formula (extracted text)

$ \text{Total Concrete Volume (cu ft)} = \text{Volume per Hole} \times \text{Total Posts} $ $ \text{Bags of Concrete} = \lceil \frac{\text{Total Concrete Volume (cu ft)}}{\text{Bag Yield (cu ft)}} \rceil $

Variables and units

No variables provided in audit spec.

Sources (authoritative):

Home — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/
Construction — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/construction-diy
Materials Estimation — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/subcategories/construction-diy-materials-estimation
Concrete Calculator (Slab, Footing, & Column) — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/concrete-calculator
Decking Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/decking
Board Foot (Lumber) Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/lumber-calculator
Paint Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/paint-calculator
Gravel & Sand Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/gravel-calculator

Changelog

Version: 0.1.0-draft
Last code update: 2026-01-19

0.1.0-draft · 2026-01-19

Initial audit spec draft generated from HTML extraction (review required).
Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
Confirm sources are authoritative and relevant to the calculator methodology.

Verified by Ugo Candido on 2026-01-19
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Formulas

(Formulas preserved from original page content, if present.)

Version 0.1.0-draft

Citations

Add authoritative sources relevant to this calculator (standards bodies, manuals, official docs).

Changelog

0.1.0-draft — 2026-01-19: Initial draft (review required).