Portable electric fence is what makes daily moves possible. Here is the kit, the setup, and the tricks that turn a paddock move into a two-minute job. Shopping for the gear? Start with our portable fence buyer’s guide — this article is the hands-on setup companion.
Why portable fence
Permanent perimeter keeps livestock on your place; portable fence is how you ration the grass inside it. A reel of polybraid and a handful of posts let you carve a big pasture into daily paddocks, move animals to fresh grass, and rest what they leave — the heart of rotational grazing.
The core kit
| Item | Job |
|---|---|
| Geared reel + polybraid | Roll out and wind up the hot wire fast |
| Step-in / tread-in posts | Hold the wire at height, no tools |
| Portable or solar energizer | Power anywhere |
| Ground rod | Complete the circuit |
| Gate handles, connectors, fault finder | Connect, gate through, troubleshoot |
Setting up a paddock
- Walk the line you want and push in step-in posts every 30–50 ft (closer on rough ground).
- Reel out the polybraid along the posts and clip it into the post hooks at the right height.
- Connect to the energizer with a gate handle or lead-out wire, and drive a ground rod.
- Test it with a fault finder — you want 3,000+ volts on the line for cattle.
- Add a gateway with an insulated handle so you can move animals without dropping the whole fence.
One wire or two?
- Trained cattle: a single wire at nose height does the job.
- Cows and calves: add a lower wire so calves learn it too.
- Sheep and goats: they need multiple wires or electric netting — one wire will not hold them.
Move fast with the right reel
A geared reel (3:1 winding) reels in three times faster than a single-speed reel — the difference between dreading moves and doing them daily. For long runs and big paddocks, step up to a large geared reel; for everyday quarter-mile runs the medium geared reel is the workhorse.
Back-fencing
Once animals move forward, set a back-fence to keep them off the grass they just grazed so it can rest. It is one extra wire that protects your recovery — the whole reason rotational grazing works.
Powering portable fence
For cells far from an outlet, a battery or solar energizer keeps the wire hot. Size it to your total hot wire (see joules explained), and carry a fault finder so you can chase down a short in the field.
Frequently asked questions
How far apart should step-in posts be?
Every 30–50 ft on smooth ground; closer over hills and dips to keep the wire at the right height.
Polybraid or polywire?
Polybraid is more visible and durable with more metal strands for better conductivity. We compare conductors in our polywire vs. polybraid guide.
Do I need to ground a portable fence?
Yes — at least one good ground rod. Poor grounding is the top reason a portable fence feels weak.
How many volts for a portable cattle fence?
Aim for 3,000+ volts on the line under load. Lower usually means a short, weak grounding, or a tired battery.
Bottom line
A geared reel, good polybraid, step-in posts, and a portable energizer are all it takes to graze rotationally. Build the kit from polybraid, posts, and energizers, or map the whole system with our Ranch Infrastructure Planner.
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