Fence Materials Calculator

Plan your fence project with our free calculator. Estimate the number of posts, pickets, and rails you need to buy for your new fence.

How to use this calculator

Plan your new fence by estimating the number of posts, rails, and panels or pickets needed. Check our Fence Guide for installation details.

What Is a Fence Materials Calculator?

A fence materials calculator is a tool that provides a simplified shopping list for the most common materials needed to build a standard fence. By inputting your fence dimensions and infill type (panels or pickets), it helps you plan your purchase and budget your project more accurately. This free calculator gives you an instant estimate to take to the hardware store.

Last updated: November 8, 2025

How to Use the Fence Materials Calculator

Get a quick material list for your fence project with our free tool:

  1. Enter Fence Dimensions: Input the total length and desired height of your fence.
  2. Set Post Spacing: Define the distance between your support posts (typically 8 feet).
  3. Choose Infill Type: Select whether you will use pre-made panels or individual pickets.
  4. Enter Infill Width: Add the width of your panels (in feet) or pickets (in inches).
  5. Click "Calculate Materials": Get your estimated material list instantly.

Understanding Your Fence Material List

This calculator provides a simplified shopping list for the main components of a basic rectangular fence frame and surface.

  • Posts: The vertical supports that anchor the fence. The number is based on your chosen post spacing.
  • Rails: The horizontal boards that connect the posts, to which the pickets or panels are attached.
  • Panels/Pickets: The infill that creates the fence surface. The calculator estimates either the number of pre-made panels or the number of individual pickets needed.
For a durable fence, always use pressure-treated lumber rated for ground contact for your posts. This prevents rot and extends the life of your fence significantly.

Example Fence Materials Calculation

Here is a common scenario for a 100-foot long privacy fence.

InputExample Value
Fence Length100 ft
Fence Height6 ft
Post Spacing8 ft
Infill TypePickets (5.5" wide)
Posts Needed~14 posts
Pickets Needed~210 pickets

Frequently Asked Questions