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Fence Calculator

Plan a panel-style fence by total run length, panel width, gate openings, post spacing, and local material and labor costs.

22-calculator project library Reviewed 2026-07-25Calculations run privately in your browser

Enter project details

Example values are prefilled
Fence layout
ft
ft
ft
ft
%
Material and labor
$
$
$
bags
$
$
Location and tax assumptions

The location factor adjusts labor only. Replace all default prices with actual local quotes before purchasing.

A coarse planning adjustment—not a ZIP-code quote.

%

Enter the tax rate that applies to taxable materials.

All default prices are editable examples. Cost scenarios vary the entered plan; they do not represent bids or guarantees.

How to use this fence calculator

Calculate fence panels, posts, gates, concrete, fasteners, labor, and project cost.

Formula

Panel run = total length − gate width. Panels = panel run ÷ panel width, rounded up. Posts account for panel ends, corners/continuity, and two gate posts per gate.

Worked example

Example: A 150 ft fence with one 4 ft gate leaves 146 ft for panels. At 8 ft per panel, 19 panels are required before the extra allowance.

Accuracy and limitations

Corners, slopes, terminal posts, post depth, frost requirements, demolition, permit rules, and utility conflicts can change the design and cost.

Frequently asked questions

How far apart should posts be?

For prebuilt panels, spacing follows the actual panel width and post dimensions. Measure the purchased product.

Does a gate need extra posts?

A gate normally needs reinforced hinge and latch posts; this calculator assigns two gate posts per opening.

Should I call before digging?

Yes. Follow local utility-location requirements before any post-hole work.

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