Fence Calculator

Number and length of posts needed

Fence length

Post space (i)

Number of posts

Number of sections

Fence height

Post length (i)

Number of rails needed

Rails per section (i)

Number of rails

Number of pickets needed

Picket width

Picket spacing

Number of pickets

Concrete for post footing

Post shape

Cuboid Cylindrical

Post width

Post thickness

Concrete volume

ft³

Key Features

✔ Accurate post and section calculation based on total fence length and customizable post spacing.
✔ Dynamic rail and picket estimation using rail-per-section and picket width/gap inputs.
✔ Post depth and length estimation includes buried depth for stable installations.
✔ Concrete volume calculator for both cuboid and cylindrical post footings, with unit switching support.
✔ Metric & Imperial unit support lets you work with cm, m, ft, or inches across all inputs.
✔ Clipboard-ready sharing for contractors or project teams to easily copy and paste fence specs.

How to Use It

Define Your Fence:
Enter the total fence length, preferred post spacing, and desired fence height. The tool automatically calculates how many posts and sections you need.
Estimate Post Requirements:
The calculator suggests a post length based on a safe buried depth—using the greater of 1/2 fence height or 0.6 m by default.
Plan Your Rails and Pickets:
Specify how many rails you want per section and your desired picket dimensions and gaps. The tool instantly outputs total rails and pickets needed.
Calculate Concrete Volume:
Choose the shape of your post footings (cuboid or cylindrical) and input the footing dimensions. The calculator gives you the concrete volume in m³ or ft³.
Review or Share Results:
Use the share button to copy a summary of all results to your clipboard. You can also clear all fields or reload the calculator as needed.

Build with Confidence

Our Fence Calculator helps take the guesswork out of planning your next fencing project. Whether you're enclosing a backyard or securing a perimeter, this tool ensures precise material estimates from start to finish.

Start fencing smarter with the LS Fence Calculator today.

Fence Calculator