Fence Panel Quantity Calculator

Work out fence panel quantity instantly with clear inputs, formula shown and shareable results.

About Fence Panel Quantity Calculator

Panel count is fence length divided by panel width, with a part panel added if the run does not divide evenly. Because a cut panel wastes the remainder and awkward runs sometimes need two cuts, a small allowance is added on top of the whole panels.

Formula

Panel count

Panels = ceil((whole panels + part panel) x (1 + allowance))

Worked example

With the default values below, Fence Panel Quantity Calculator returns Panels required of 24. Change any input above and every figure here is recalculated in your browser.

Inputs used

Fence lengthminimum 0.1 m: 40 m
Panel widthminimum 0.1 m: 1.83 m
Panel heightminimum 0.1 m: 1.8 m
Cut panel allowanceaccepts 0–25 %: 5 %

Results

Panels required: 24
Fence area: 72.00 m²
Panels per metre: 0.546
Length made up by a cut panel: 1.57 m

Step by step

1Values used
2Panel count
3Panels required= 24
4Fence area= 72.00 m²
5Panels per metre= 0.546
6Length made up by a cut panel= 1.57 m

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Fence Panel Quantity figure worked out?

Panels = ceil((whole panels + part panel) x (1 + allowance)). Panel count is fence length divided by panel width, with a part panel added if the run does not divide evenly.

Where should the cut panel go?

At the least visible end, or split between both ends so the fence looks symmetrical. Setting post positions from a corner rather than the middle keeps the cut in one place.

What values do I need to enter?

This calculator takes 4 inputs: Fence length, Panel width, Panel height, Cut panel allowance. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.