Installing a cattle electric fence means bracing corners, setting posts, running a hot wire at 90 cm, and grounding the energizer with three rods.
For the full breakdown, see our best Electric Fence For Cattle guide.
An electric fence only holds cattle when the steps happen in order: brace the corners, set the posts, hang the wire, then ground the charger. Most weak fences trace back to that last step — poor grounding produces a line that shocks nothing. The steps below follow USDA and livestock-agency specs for how to install electric fence for cattle, with the heights, tension, and voltages that decide whether cattle respect the fence or lean through it.
Plan the Line and Brace the Corners
Walk the pasture before you dig. Mark where gates need to swing, where the water tank sits, and how you’ll split the field for grazing; then clear the fence line of brush, rocks, and anything else that could short the wire later. Call your local utility locator before setting posts anywhere near buried lines, and keep overhead wires in mind while you string long runs.
Corner and end posts carry the pull of every straight stretch, so they need the heaviest bracing on the job. For temporary paddocks, skip the digging: hook the reel, walk the line setting portable posts every 50 feet — closer on uneven ground — tension by hand, and reverse the process to move the fence.
Set Wire Height and Tension
Height comes first. Run a single hot strand at 90 cm (about 3 ft) for adult cattle, which puts it near nose height for most beef breeds. When cows and calves graze together, AHDB’s fencing guidance calls for two strands with the live wire at calf nose height, so calves learn the fence early instead of running under the hot one.
Attach an insulator to every post — porcelain or plastic on wood, clip-on styles on steel T-posts — then pull the wire tight. Taut wire holds its height in summer heat and delivers a sharper bite; slack wire sags and invites cattle to lean.
Where a gate crosses the fence, run the lead wire overhead or use cable rated for burial so the gap doesn’t become a trip hazard. For permanent fences, AHDB suggests burying the insulated power cable about 30 cm (12 in) down inside rigid plastic pipe to protect it from tillage and rodents.
The numbers you’ll actually use fit on one card:
| Fence Spec | Setting For Cattle | Why It Matters |
|---|---|---|
| Hot wire height | 90 cm (about 3 ft) | Sits near nose height for adult animals |
| Height with calves present | Second strand, live wire at calf nose height | Calves learn the fence before they test it |
| Wire tension | About 200 lbs | USDA’s working spec for cattle and horses |
| Ground rods | Three minimum, 6+ ft long, 10+ ft apart | Delivers a reliable shock down the whole line |
| Far-end voltage | 2,000 V summer; 4,000 V winter | Cold weather drains power
|