Fencing Equipment

Good fencing is one of those farm investments that pays you back every day or costs you every day depending on whether you got it right. A fence that keeps your animals in and predators out while requiring minimal maintenance is infrastructure that just works - you stop thinking about it. A fence that's underpowered for the job, poorly installed, or built with the wrong tools develops problems constantly and becomes a recurring time and money drain for as long as it's standing.

The equipment you use to build and maintain fence matters more than most beginning farmers realize. Fence posts driven by hand with a manual post driver go in slower, are less consistent in depth and alignment, and are more exhausting than posts driven with a tractor-mounted post driver or a gas-powered walk-behind driver. Wire pulled by hand without proper tensioning tools ends up looser than wire pulled with a come-along or a wire stretcher, and a fence that starts loose gets looser over time. The fence that looked borderline acceptable the day it was finished will be inadequate in two years. The fence built with proper equipment and proper technique will still be doing its job in fifteen.

Fencing equipment also includes the ongoing maintenance tools: fence testers for electric systems, post pounders for re-driving heaved posts, repair tools for damaged woven wire, and the materials inventory that means you can fix a problem today rather than letting it wait until you get to the farm store. A fence that needs repair and doesn't get repaired immediately is a fence that gets worse, and often a fence that animals learn to challenge.

This article covers the equipment side of farm fencing - what you actually need to build good fence, what makes the difference between a professional-quality result and one that's going to give you trouble, and the specific tools and equipment that pay for themselves in the quality and longevity of the fence they build.

The foundational piece of permanent fencing equipment is your post installation tool. The choice between a manual post driver, a gas-powered post driver, and a tractor-mounted post driver is driven by your scale and terrain. For a small farm with modest amounts of fencing to install, a gas-powered post driver - the kind you operate standing up, with a weight that rides up and comes down on the post - is the workable middle ground between all-manual labor and full tractor-mounted equipment. They're available to rent from most equipment rental houses if you don't want to own one. A tractor-mounted hydraulic post driver makes sense if you have significant fencing to install or if you're regularly building new paddocks, and it produces more consistent results than any other method.

For woven wire fencing, which is the backbone of most permanent perimeter fencing for livestock, a wire stretcher is essential. You cannot hand-tension woven wire adequately. A come-along attached to a pulling bar that spans the full height of the wire creates even tension across all the horizontal strands and allows you to get the wire tight enough to stay tight over time. Woven wire that's been properly tensioned has a spring to it when you press in the middle of a span - it gives slightly and returns. Wire that's been hand-pulled sags noticeably in the midspan and will only sag more as posts settle and wire takes a set.

Fence stretching requires anchor posts that can take the load. Corner posts and brace assemblies are the structural heart of a woven wire fence. A properly built corner consists of a corner post at least 6 to 8 inches in diameter set 3 to 4 feet deep, a brace post set to the inside of the fence line, and a diagonal brace rail connecting them, with a twisted wire brace running from the top of the corner post to the base of the brace post. This configuration - called an H-brace when done in pairs - distributes the tension load across two posts and the soil between them. Without proper bracing, your corner posts will lean inward under wire tension within the first year.

Post spacing determines your material cost and your fence's animal containment. Standard woven wire fencing is typically spaced at 12 to 15 feet between line posts for most livestock. Tighter spacing - down to 8 feet - is used in high-pressure situations, rough terrain, or where animals push hard against fence. Wider spacing saves posts and cost but requires properly tensioned wire to avoid sag in the midspan. Calculate your post spacing and quantities realistically before ordering.

For electric fencing, the energizer is the critical piece of equipment, and undersizing it is the most common mistake. Energizer output is rated in joules of stored energy, not in volts, and the joules rating is what determines how effectively the fence works through vegetation contact and poor soil conditions. A low-joule energizer on a fence line that has any grass or weed contact along the bottom wire delivers inadequate shock, and animals learn quickly that the fence isn't something to respect. The general guidance is to oversize your energizer relative to the fencing you're powering - the cost difference between a 2-joule and a 5-joule energizer is modest, and the performance difference in real-world conditions is significant.

A fence tester for electric systems is a low-cost tool that belongs in every farm truck or barn. Without a tester, you're guessing whether your electric fence is working and at what voltage. A fence that tests at 4,000 volts is working. A fence that tests at 1,500 volts is not going to deter a determined animal. Testing after heavy rain, after any physical disturbance to the fence, and on a regular schedule during grazing season catches problems before they become escapes. Fence testers cost $10 to $50 and are worth every dollar.

Fence maintenance is a regular part of farm operations that has to be built into your schedule rather than done reactively. A monthly walk of your perimeter fence - all of it, every section - with a tester in hand for electric and eyes for physical damage on all types is the standard most experienced farmers settle on. Catching a broken strand, a post that's leaning badly, or a section with significant vegetation contact before it becomes an escape is the entire value of that walk.

Grounding is the electric fence maintenance issue that causes more failed fences than any other single factor, and it's the one least understood by beginning farmers. An electric fence circuit requires current to flow from the energizer through the wire, through the animal, through the soil, back to the energizer ground rods. If your ground rods are inadequate - too few, too short, in dry or rocky soil that conducts poorly - the circuit can't complete effectively and your fence delivers inadequate shock regardless of how powerful your energizer is. The standard recommendation is three ground rods, 6 feet each, spaced 10 feet apart, in moist soil. In dry conditions or rocky soil, you need more. Testing from the fence line back to the ground system (not just out on the line) tells you whether your ground is doing its job.

Post replacement is the most common physical maintenance task on permanent fences. Wooden posts in contact with soil rot from the bottom, and a post that looks solid from the top can be rotted through at the soil line. Grab every post at about 18 inches height and try to move it. A solid post won't give. A rotted post will flex or tip or pull out of the ground easily. Replace posts before they fail, not after the fence line sags because the post went down overnight.

Keep materials on hand for quick repairs. A roll of repair wire, a bag of staples or fence clips, a come-along for re-tensioning wire, and replacement posts in the appropriate sizes mean that a fence problem you find today gets fixed today, not next week when you get to the farm store.

Fencing relates to animal health primarily through injury prevention and stress reduction. A fence that animals challenge or that fails intermittently creates stress that affects everything from weight gain to reproduction. Animals that have learned they can push through or over a fence are in a state of constant low-level testing of boundaries, and the escape events that result in road encounters, neighbor confrontations, and mixing of incompatible groups are all health and safety events.

Wire injuries from poorly maintained fencing are one of the most common causes of lacerations and foot injuries on farms. Loose woven wire that animals step on, barbed wire ends at animal eye or leg height, broken strands with sharp cut ends, and wire that's been compressed into coils by animals walking over it - all of these are injury sources that a regular fence walk catches and corrects. Foot injuries in livestock are particularly costly because they affect mobility, feeding behavior, and weight gain, and they're slow to heal.

Electric fence and cardiac concerns in animals are occasionally raised as a question by new farmers. Properly functioning low-impedance electric fence energizers produce brief, high-voltage, low-amperage pulses specifically designed to be painful but not harmful to animals. Animals that contact the fence flinch and move away - they don't receive a sustained current. The safety record of properly designed and installed electric fence for livestock is excellent. The dangerous situations arise from improvised or incorrectly wired systems, not from commercial energizers used as directed.

For predator control, the adequacy of your fencing directly affects your flock or herd's health and survival. Coyotes, dogs, foxes, and in some areas larger predators represent genuine threats to poultry, sheep, goats, and young livestock. Understanding the pressure you're likely to face and building fencing appropriate to that pressure is an animal welfare issue, not just an economic one. An electric net fence that works well in a low-coyote-pressure area may be completely inadequate in an area with active predator problems.

The species you're fencing determines your fence specifications more than almost anything else, and trying to use the same fence for multiple species with different containment requirements creates problems with the most challenging species in the mix.

Goats are legendary escape artists, and the fence that holds goats will hold almost anything else on the farm. The keys with goats are no openings large enough to put a head through - they'll follow their head - and adequate height so they don't simply jump over. Goat netting with 4-inch by 4-inch openings is preferable to standard woven wire with larger openings at the bottom. Electric is effective for goats but requires proper training - getting goats to respect electric fence when they've never encountered it requires deliberate introduction rather than just turning them into a new electric paddock and hoping for the best. Untrained goats will run through electric fence without being deterred.

Cattle can be fenced with simpler systems than goats. Three or four strands of high-tensile wire or barbed wire properly tensioned and at appropriate heights is sufficient for most cattle in normal conditions. Electric works extremely well for cattle rotational grazing systems. A single strand of electric at nose height will move cattle that have been trained to respect it - but training is the key word. The time to train cattle to electric fence is in a small paddock with conventional fence backing it up, not in a large pasture where a breach means a serious problem.

Poultry require predator exclusion thinking more than containment thinking - chickens don't push hard against fence the way livestock do, but anything trying to get in will dig, climb, or force through any gap. Buried hardware cloth skirts extending outward from the fence base, smaller mesh at the bottom of the fence to exclude rodents and small predators, and overhead coverage for aerial predators are the specifications that separate poultry fencing that works from poultry fencing that loses birds to predators.

Buying or renting the cheapest post driver you can find and then wondering why posts go in crooked or don't seat properly is a false economy that shows up in fence quality immediately. Post driving is the most physically demanding part of fence installation, and equipment that doesn't do it well makes the job harder and produces worse results. If you're going to own a post driver, buy a quality one. If you're going to rent, rent from a reputable equipment house and inspect what they send you before you drive an hour to a remote field with it.

Skipping the ground system on electric fence because the instructions seem like overkill is a mistake that creates a fence that doesn't work and then a frustrated farmer who concludes that electric fence is unreliable. Electric fence is highly reliable when the ground system is adequate. It fails consistently when it's not. Before you blame your energizer, test your ground. Drive a steel rod into the ground a hundred feet from your ground system, connect it to the fence line, and test the voltage between that rod and the fence. If voltage is more than 300 volts, your ground is inadequate. Fix the ground before replacing anything else.

Installing corner bracing that isn't adequate for the wire tension you're applying is a mistake that causes the most expensive and visible form of fence failure - a leaning corner that pulls the entire fence line out of alignment. The H-brace assembly with the brace rail and twisted wire is not decorative; it's structural. Every turn in a woven wire fence, every end post, and every gate post needs properly sized bracing. The diameter of your corner post, the depth it's set, and the quality of the brace assembly all matter. If you're unsure whether your corner is adequate, it probably isn't - overbuilding corners is almost always the right call.

Not training animals to electric fence before relying on it for containment is a mistake that leads to escapes, fence damage, and animal injuries. Electric fence training involves confining animals in a small area with both conventional and electric fencing, so when they contact the electric and react, they move into the conventional fence rather than through the electric line. After a few days of controlled exposure, most animals have developed a strong learned avoidance of the electric line. Skipping this step and putting animals directly into a large electric-fenced paddock often results in a breach within the first day.

Underestimating the effect of vegetation contact on electric fence performance is a mistake that causes fences to lose effectiveness through the growing season. Weeds and grass growing up into the fence line bleed current from the wire to the ground, reducing voltage on the line. A fence that tested fine in early spring when vegetation was low can be ineffective by July if grass is growing into the wire along the fence line. Vegetation management along the fence line - mowing, using a weed eater, or applying approved herbicide - is a fencing maintenance task, not a separate issue. Budget time for it.

Storing tools and materials improperly shortens their useful life significantly. Come-alongs and fence stretchers stored where they get rained on rust and seize. Wire stored on the ground absorbs moisture and develops surface rust that makes it harder to work with and potentially compromises its structural properties over time. A dry, sheltered location for fencing tools and materials isn't a luxury - it's basic equipment management that protects an investment.