Fence Post Spacing - A step-by-step guide

02 Dec.,2024

 

Fence Post Spacing - A step-by-step guide

Fence Post Spacing

A step-by-step guide

Do you have a fence installation project at hand? If you&#;re already thinking about your gate posts, end post, deciding whether to use wooden posts or steel&#; you might feel overwhelmed already!

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When planning to build a fence, it is important to take into account the correct spacing and depth of fence posts.

Plan ahead to determine fence post spacing for a long-lasting installation

So, how far apart should fence posts be? The standard spacing for fence posts is 8 to 25 feet apart, depending on the type of fence. A standard wood fence would require posts 8 feet apart, while a high-tensile wire could span 25 feet.

Keep in mind, terrain, climate conditions, snow and ice loads, and soil conditions are also factors that need to be considered.

How to identify what fence you need

Identify a fence according to your project before thinking about post spacing.

What type of project do you have at hand? You could be laying out a fence for crop protection, perimeter control, livestock or wildlife containment or exclusion.

Taking into consideration the nature of your needs will help you first determine the type of fence required to complete a successful project.

Discover all the fencing options STAY-TUFF has for you

STAY-TUFF has options that offer durability, integrity and performance you won&#;t find anywhere else.

Our fencing solutions come in different heights, and are suitable for home projects, as well as commercial or industrial applications.

How to lay out a fence for your needs

Before starting any project&#;

  • Check property lines!
    It is important that you verify and have the utmost certainty before setting brace and line posts. This will save you time and trouble!
  • Call Before You Dig
    Always call before you start any fence construction to make sure the area is clear of hidden obstacles and dangers like buried power lines, water lines, gas lines, etc.
    Different parts of the country have different numbers and places to call.

STARTING A PROJECT

You should always sketch a map of your property that includes property lines, underground utilities, natural obstacles and other important features before installing the fence or any fence posts, for that matter.

After you have finished your sketch, map all the fence support elements, which include:

Make a sketch of where the ground your fence will be installed
  • Brace posts &#; Designed to anchor a fence and support its weight
  • Line posts &#; Provide support along the length of the fence
  • T-Posts &#; Hold the fence in a vertical position
  • Boss posts &#; Also hold the fence vertical, and provide extra support along the fence where there are severe dips, hips and ledges in the fence line

How to select posts

Let&#;s dig a bit deeper into the subject of posts.

Here&#;s what you need to know about the difference between them:

Selecting the correct type of fence post is fundamental for a successful fencing project
Brace posts

Brace posts give stability to your structure.

A brace is required every time your fence stops, starts or changes directions, regardless of the length of its run.

These posts are what keeps the fence tensioned and help it support its weight.

They are composed of the following:

  • End posts &#; The anchors of the fence. Wire is attached at the beginning and end of each straight run
  • Brace posts &#; Hold end post in place, along with cross members.
  • Cross members &#; They connect end & brace posts, allowing them to distribute the force of the fence.
  • Brace wires &#; They transfer the force between the posts of the brace
T-POSTS & bosses

For a STAY-TUFF Fence, post spacing for T-Posts and Boss Post varies between 8&#; to 25&#;, taking into consideration terrain, soil (light soil will require less distance between posts), turns in the fence line, and animal pressure (place them closer in high animal pressure applications).

STAY-TUFF allows the use of less line posts with greater strength than other fences

STAY-TUFF offers a wide range of products, offering you the option to use less posts, which in turn will save money and labor, while investing in a good-quality fence wire that will last for generations.

Post spacing

The setting of your posts needs to be done correctly because it affects the performance, durability, and longevity of the fence.

If fence posts are too close together, the fence could be too ridged and not allow the wire to have the flex and give to absorb an impact.

On the other hand, spacing posts too far apart is detrimental to the life expectancy of fence structures, due to the loads placed on the fence during climate changes, weather events and from animal pressure.

Fence post spacing is made easy with STAY-TUFF

Fastening wires

STAY-TUFF also has the tools to install, fasten and splice fence wire &#; all steps which are needed to complete an installation project.

We carry the tools you need for every step of posts & wire installation.

We&#;re glad to connect you with an authorized distributor! Visit https://staytuff.com/store-locator/ to learn more. 

Farm Fence Post Spacing Guide

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So you&#;re thinking of erecting your own farm fence? A question we often get asked is: How far should I space my posts apart?

Unfortunately, there is no hard and fast rule. Many different factors impact fence post spacing.

In this guide, we walk you through what you need to consider when spacing your fence posts, and what you can do to ensure a long-lasting and robust fence.

We have also given a number of examples to help you decided the best post spacing for your farm fence.

Where Do I Start?

Firstly, it is essential to understand that there are two different types of farm posts. These are your fence strainer posts and your star pickets.

Strainer posts are designed to keep your wire fence tight and upright. The purpose of a strainer is to create an anchor point for the wires. Where anything changes, your wires need to be anchored so they stay the same distance and the same strain.

Pickets are used to guide the line of wires and to provide additional support.

With both strainer posts and picket, many factors will impact the distance between your fence posts. These including:

  • How heavy your fence is.
  • The stock to be fenced in/out.
  • The topography and geography of the land.
  • Any change in direction.

However, because strainer posts and pickets have different roles, you need to think about them differently when deciding how far to space them.

Are you interested in learning more about cattle-fence? Contact us today to secure an expert consultation!

What Impacts Star Picket Spacing?

The Number Of Wires On Your Fence

If you have a large number of wires, for example, 9 to 12, you will need as much support as possible. Your pickets will need to be closer together to support that extra weight.

Livestock Size and Pressure

If you have large stock, such as cows, you will need to have your pickets spaced closer together to withstand the tension of the animals against your fence. Barbed wire can help as a deterant for your cattle, but you still want to have that added strength.

If you have smaller stock like sheep or goats, you will be able to space your pickets further apart.

Terrain

Whether your land is undulating or flat will impact the space between pickets. If you have a flat surface, you will be able to have more space between support pickets. If you are fencing in a hilly area, you will likely need more pickets so your fence follows the contours of the land. More on this below.

What Impacts Strainer Post Spacing?

Does Type Of Livestock Matter?

While the type of livestock will impact how far to space your pickets, it doesn&#;t really affect your strainers. If you use a strong steel strainer posts of 80NB (89mm O.D) or larger, the post will be strong enough to support the fence. It won&#;t matter if you have cows or chickens.

The Topography Of Your Land

With any significant topography change, you should use a strainer.

If your fence dips down into a gully, you should have an inline strainer post at the bottom of the gully. Due to the strain of the fence wire, if you had a star picket, it would be pulled straight out. A strainer post will be able to stay tight in the gully.

This also applies to star pickets at the top of a hill. Use a inline strainer post at the top of the hill. This will ensure that your post doesn&#;t get pushed into the ground due to the force of the strained wire.

If you are setting up a fence on a dead flat plain and going in a straight line with no hills or dips, you can easily get hundreds of meters between strainer posts. 

A Change In Direction

In most cases, particularly for heavier duty fences, any change in direction will require a strainer post.

The pressure of the strained wire will cause a picket to be pushed/bend to the side. A strainer post can withstand the pressure and remain upright.

For significant changes in direction, the use of a stay can be used to ensure that the strainer post remains upright, particularly for highly-strung fences.

Number Of Wires

If you have a lower number of wire, for example, 3 to 4, or an electric fence, you may be able to get away with using star pickets for minor changes in topography or direction. However, for heavy-duty fences, you will want to make sure your fence is secure and tight by using a strainer post.

Gateways

You will want a strainer post end assembly on each side of a gateway.

Strainer Thickness

The thicker the wall is, the stronger the strainer post. This means you can have them further apart, and they will still manage to keep your fence tight and upright.

We recommend steel strainer posts of 80NB (89mm O.D) or 100NB (114mm O.D).  Using less than 80NB will effect the strength of your fence and you will need to place them closer together. Resulting in more components and expense.

Fence Post Spacing Examples

Here are some example situations you might be in and what you could potentially do.

  1. Crop Fencing (Flat, No Stock) &#;Crop fences are designed to keep pests such as pigs and kangaroos out, rather than keeping stock in. In most cases, the terrain will be relatively flat. 5 metres between posts will be more than enough in most cases. If you do have a big pig or kangaroo problem, you might want to bring it closer to 4 metres.
  2. Sheep Fencing On Flat Ground While your fence wires will have to have a high tension to stop lambs getting out, sheep tend to put lower pressure against a fence than larger stock. 4 metres between posts should be good to keep your sheep in.
  3. Sheep Fencing On Hilly Ground Again, sheep tend to put lower pressure against a fence than larger stock. 4 metres between posts should be good to keep your sheep in on hilly terrain. Any topography changes should be taken care of by a strainer post.
  4. Cattle Fencing On Flat Ground The main thing to consider, is the strength of your fence is in the strainer posts. 4 metres between posts should be enough to keep your cattle in, however if you do have &#;rowdy&#; cattle that like to push fences, increase the number of inline strainer posts on large stretches with no gateways or corners. These extra strainer posts will ensure the integrity of your fence against large animals.
  5. Cattle Fencing On Hilly Ground The main thing to consider, is the strength of your fence is in the strainer posts. 3 metres between pickets should be enough to keep your cattle in on hilly ground. Any topography changes should be taken care of by a strainer post. If you do have &#;rowdy&#; cattle that like to push fences, increase the number of inline strainer posts on large stretches with no gateways or corners. These extra strainer posts will ensure the integrity of your fence against large animals.
  6. Fencing on Road Sides NSW Rural Roads Specifications require you pickets to be spaced at a maximum of 3m intervals with 5 strands of wire. (See NSW R201 specifications. In Queensland, there needs to be 4 strands of wire with a 4m spacing between your pickets. Be sure to check with any local requirements for boundary and rural road fencing when planning your fence post spacing.

These examples should give you an indicator to the different spacing you will need for different circumstances. 

Do Ground Conditions Affect The Spacing Between Posts?

When you&#;re putting up a fence, the ground conditions really matter. You might think that adding more posts is the way to go, but actually, the depth of the posts is more important.

If you&#;re in an area with black soil or clay, you need to use longer posts that can go all the way down to the rock bottom or go for DriveTight end assemblies that offer more ground anchorage.

Now, if you&#;re working with sandy soil, you want to focus on setting you posts deeper, rather than adding more strainers.

But if you&#;re in rocky soil, things get a little tricky. It can be tough to drive posts and pickets into place, but the rocks actually give extra support to the fence posts, making the whole thing stronger.

How To Build A Wire Fence: Our Fencing Tips

#1. Strainer Posts First

Plan out your fence by determining where you strainer posts will need to go. Start with the corners and where you want to place your gates. Assess where there will be any changes in direction and topography.Can you kill two birds with one stone by putting your gate post where you want to change direction? Mark out key areas: the end of your fence, any corners, gateways, or changes in topography. That&#;s where you put your strainers.

Inline strainer posts should be included every 100 metres or so if there are no corners or gates, and a little closer together if you have rowdy cattle or if it&#;s a high-pressure area (like a laneway leading into your yards where livestock may be putting more pressure on the fence than normal).

For example, a farmer has a 300 metre stretch of fencing on flat terrain to put up. The farmer has decided to put a post every 4 metres. This farmer will have to put an inline strainer every 100 metres. and then they can put a picket every 4 metres in between.

#2. Space your pickets out evenly

Evenly spacing out your pickets between your strainer posts provides even strength and support throughout your fence. And it looks better too!

#3. Always Double Check

Once your fence is entirely in (wires strained up) it is incredibly frustrating and time consuming to make changes. It is always easier to knock in another strainer post when there is no wire or strain.Getting a new post in when your fence is all wired up is sure to cause headaches. Re-Configuration is a nightmare, so do it once and do it right.

#4. Consider What&#;s In Your Neighbours Paddock

For property boundary fences, don&#;t forget to consider what your neighbor has. If they have Brahman&#;s and you space your posts for a light duty three wire boundary fence, you are going to have a lot of headaches in the future.

Wrapping It Up

By now you have a good idea what you need to think about when determining your fence post spacing. If you still have a question, feel free to contact us, or talk to one of our recommended rural fencing contractors.

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