Installing a glass fence costs much more than wood or metal, but those who invest do so for aesthetics. Learn how different types can significantly influence your project budget.
Fence Post Calculator: How Many Fence Posts Do I Need?
Photo: pidjoe / istock/ Getty Images
Photo: pidjoe / istock/ Getty Images
Highlights
Fence installation costs fall between $1,857 and $4,764.
How many fence posts you need depends on the type and spacing.
A local fence installer can determine how many fence posts you need.
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Including a fence around your yard can keep your pets and kids safe and prevent unwanted guests (animals and people) from entering. It can also help create a private place for you to relax. Fence installation costs between $1,857 and $4,764, and getting accurate measurements can keep you on budget. If you’re wondering, “How many fence posts do I need?” we can help. Calculating the number of fence posts needed for your fencing project is relatively simple and can ensure you have enough materials to complete the project.
How Many Fence Posts Do I Need for My Fencing Project?
When it’s time to replace a fence, use this guide to estimate how many fence posts you’ll need based on the linear feet and type of fence.
| Fence Type | Spacing | Number of Posts per 100 Linear Feet | Number of Posts per 200 Linear Feet | Number of Posts per 300 Linear Feet | Number of Posts per 400 Linear Feet |
|---|---|---|---|---|---|
| Wooden | 5–8 feet | 13–20 | 25–40 | 38–60 | 50–80 |
| Metal | 5–8 feet | 13–20 | 25–40 | 38–60 | 50–80 |
| Vinyl | 6–8 feet | 13–17 | 25–34 | 38–50 | 50–67 |
| Chain-link | 4–10 feet | 10–25 | 20–50 | 30–75 | 40–100 |
| Wire | 8–12 feet | 9–13 | 17–25 | 25–38 | 34–50 |
Calculating How Many Fence Posts You Need
Photo: Dolores Harvey / Adobe Stock
Before you calculate how many fence posts you need, you’ll need to know how many linear feet of fencing you need, the type of fencing, and how far apart the fence posts should be. You can use the formula below as a place to start:
Number of fence posts = Linear feet / post spacing
This formula will get you a good estimate for the number of fence posts you need, but consulting a local fence installer will help you account for terrain changes, areas that need additional reinforcement, and gate considerations.
How to Measure for the Amount of Fencing
Measuring the amount of fencing you’ll need starts with measuring the perimeter of the area you want to enclose by using this formula:
Perimeter = (Side 1 + side 2 + side 3 + side 4) - width of gate openings
If the fence will be an irregular shape—to avoid trees or account for terrain changes, for example—you can still measure it yourself by measuring all of the stretches and then adding them together.
Once you have this measurement, you’ll know how many linear feet of fencing you need and can apply the formula for the number of fence posts.
Who to Hire for Fencing
Fencing can be a DIY project if you have experience, but it requires accurate measurements and knowledge of how to install posts and fencing material properly. In many cases, hiring a fencing installation professional is the best way to go. They can offer suggestions for the best material and fence post spacing and provide proper reinforcement to ensure the fence is sturdy.
Frequently Asked Questions
The homeowners guide to fencing services
From average costs to expert advice, get all the answers you need to get your job done.
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Renting temporary fencing will protect your property during construction or even a party. Fence type, material, and security features impact the cost.
Fence post sizes depend on the type of fence. This guide covers the most common post sizes for several kinds of fences, including wood and chain link.
Looking for a way to increase privacy at home without taking on extra chores? Learn about the best low-maintenance fence options.
If your gate has significant space underneath, your yard isn’t fully secure. This guide offers three easy methods for how to fix a gap under a fence gate.