When youre building a fence, proper spacing of the posts is crucial. If you set them too far apart, the rails will sag, and the wind will make short work of your fence. Setting them too close creates a lot of extra digging and unnecessary expense, while giving the fence a choppy appearance.
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Sometimes you dont have a choice. If youre installing prefabricated panels, the spacing has to be precise so precise that you usually have to wait until the panels are installed before you can set the posts in concrete. The two most common panel widths are six and eight feet.
You have more flexibility when cutting your own rails from 2×4 lumber or some other material. With wood fences, the standard spacing is eight feet. Chain link fences are stronger so the posts can be as far apart as 10 feet. Posts for wire boundary or cattle fences can be 25 feet apart.
How Terrain Affects Spacing Between Fence PostsYou can build a DIY fence on a slope by letting the rails follow the contour of the ground (racking) or setting them level (step method). When you choose the second method, the ground slopes away from the bottom rail. To avoid leaving a large gap for animals to pass, set the posts closer than eight feet.
Practically speaking, four feet is the minimum distance to avoid making the fence look like its made from posts and nothing else. But its really up to you. If you space the posts closer, go with the racking method.
If youre building with prefabricated panels, you can avoid the step method by purchasing racking panels with adjustable hinges. This lets the panels follow the slope of the ground. Whatever method you choose, the spacing will equal the width of the panels, just as on flat ground.
What Is the Maximum Distance Between Fence Posts?The answer depends on the type of fence.
For solid fences made from wood, composite or vinyl, eight feet is standard. If you put the posts any farther apart, they wont be strong enough to support the fence in windy conditions.
Posts for chain link fences can be up to 10 feet apart. But at that distance, the top rail can sag. Prevent that by adding more line posts. If you plan to install privacy slats, or you live in an area with heavy snowfall, the top rail needs more support. In those cases, six feet is the recommended spacing.
Posts for wire fences dont have to support weight, but must be close enough to maintain tension in the wire. The spacing for a standard barbed wire or woven wire fence is from 10 to 12 feet, but this varies with terrain; more posts are needed on slopes.
The purpose of the fence also comes into play. To prevent large animals from passing, posts should be closer together to provide the needed strength. But if youre building a boundary fence on flat terrain, posts can be as far apart as 25 feet.
How To Space Posts When Installing a Panel FenceWhen building a wood fence from scratch, set all the posts in concrete before attaching the rails and slats. You cant do that when installing panels, though, because approximate spacing wont do for fabricated panels with a fixed width.
You can, however, dig all the post holes before you start building. Then use a slightly different procedure for erecting the fence, as follows:
Set one corner post in concrete (usually the one on highest ground) and wait for the concrete to set. Attach the first panel to the corner post and the first line post. The panel will automatically level the line post in the direction parallel to the fence, so all you need to do is level it in the perpendicular direction.
You can then brace the post and install subsequent panels in the same way, moving all the way to the opposite corner. When that side of the fence is complete, backfill all the holes with concrete. If you want to upgrade your yard, this cinder block fence is perfect for gardens and yards that arent too high.
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Also, check out these tips for fence repair.
Deciding to put up a new fence on your property not only means selecting a practical fence style, youll also need to determine what to use for the foundation. The two most popular post materials used to construct a wire fence are treated wood and steel t-posts. Many times, property owners choose to use a combination of these materials.
Tension from a properly installed fence should fall to the ends of the enclosure. Therefore, the corners and braces should be built with heavy-duty wooden posts to withstand the pressure exerted by the pull of the wire. Solid wood posts are recommended for corner bracing and for intermittent support. However, the majority of fence posts could be steel t-posts. For most wire fencing, using steel t-posts along the perimeter is an excellent choice. This low-cost alternative provides superior strength and durability. Plus, t-posts are much easier to install than wood posts.
There are two popular weights, or strengths, of t-posts on the market. Choosing the proper post depends on the size of your enclosure, the type of wire fencing being installed, the spacing between posts, and the expected animal pressure against the completed fence. T-posts are made of high-quality steel that holds up to pressure and the environment. The strength of a t-post is rated by the amount of steel per foot. Regular t-posts are used for most applications, and typically weigh about 1.25 pounds per foot. Heavy-duty t-posts weigh around 1.33 pounds per foot and are generally used for high-pressure situations. For longevity, all t-posts are treated to prevent rust with either a coating of paint or galvanization for years of service.
T-posts are available in a variety of heights. When it comes to selecting the proper t-post for your project, choose a post that is 24-36 taller than your finished fence. Thats because the post will need to be buried at least 2-2-1/2 feet deep to prevent weather changes or determined animals from pulling them out.
Studded t-posts feature bumps, or studs, on one side of the post. These are designed to securely fasten the wire fencing to the posts to prevent the wire from slipping or pulling away.
Before installation of t-posts begins, be sure to have the proper tools and materials:
The typical spacing of posts is between 8 and 12. The distance should be determined by the type of fence and the amount of support that the fence needs in order to stay taught. Animal pressure and weather conditions are serious considerations when it comes to how much reinforcement is needed. Red Brand provides spacing guidelines here.
Measure and lay out the posts before you begin installation. This will assure that the posts are properly spaced. Typically, a 5 to 1 ratio of steel t-posts to treated wood posts is recommended for superior stability. Keep in mind that for barbed wire, fence stays can help prevent excess movement between strands. And, for woven fence, the closer the posts are to each other, the stronger the enclosure. Assessing the behavior of the animals you are protecting will help determine how much support you need to keep them safe. A docile herd of cattle wont challenge a fence the same way a rambunctious stallion will.
The studs of the posts all need to face the same direction, as they provide a place for the clips to be secured and prevent the wire from slipping downward after installation. Determine if you are keeping animals in or predators out. The side of the fence that will endure the most pressure should be the side that the post studs face. When the fencing is challenged, the posts will help hold the wire in place, instead of allowing the wire to push away from the supports.
The flare, or faceplate, at the bottom of the t-post should be set perpendicular to the enclosure and completely buried during installation. The posts need to be deep enough to remain in place during weather changes and to provide stability from animal pressure. Be sure to keep the posts straight as you drive them into the ground. Once the plate is secured in the soil, it shouldnt be a problem to keep them aligned.
When its time to secure the fence with wire clips, follow these tips:
Building a fence with t posts, along with regular check-ups and routine maintenance will result in a safe, secure, and long-lasting enclosure for your animals.
For more information on fence installations, go to Red Brands extensive video library for tips, tricks and advice. You can also ask your local Red Brand dealer for help with proper selection of fencing and materials.
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