Portable Electric Fence for Paddocks and Strip Grazing

A portable electric fence is the tool that turns one big pasture into many small paddocks without setting a single wooden post. With a few plastic step-in posts, a reel of polywire or polytape, and a portable energizer, you can split grass into daily strips, fence off a crop for a few weeks, or build a holding pen for a group of animals. It's the backbone of rotational grazing and strip grazing, two practices many ranchers use to get more out of their forage. This guide covers the materials you need, how to set a portable fence up in minutes, and how to plan strips so your pasture recovers.

What a portable electric fence is

It's a fence you can put up and take down easily, without heavy tools. It differs from a permanent fence in three ways:

• Posts: lightweight plastic or fiberglass step-in posts pushed in with your foot.
• Conductor: polywire or polytape with metal filaments, wound on a reel.
• Power: a portable battery or solar energizer, or a connection to the permanent perimeter fence.

The logic is simple: the farm perimeter has a strong permanent fence, and inside it you use portable fencing to divide pasture and move animals based on grass condition.

Materials for a portable fence

Item	Options	Recommendation
Posts	Plastic step-ins, fiberglass rods	Plastic with several clips to adjust heights
Conductor	Polywire, polytape, polyrope	Polywire for cattle; tape where visibility matters, such as with horses
Reel	Geared reel with brake	One per moving line you handle daily
Energizer	12 V battery, portable solar, link to permanent fence	Portable solar if the pasture is far from power
Gate handle	Insulated spring or hook handle	At least one per strip to move animals through
Grounding	Portable ground rod	Essential with a stand-alone energizer

Find these items in our electric fence category, in electric fence accessories, and in fence and barbed wire. To choose the right posts, see our guide to posts and rods for electric fence.

Polywire or polytape: which one?

Polywire is light, reels up fast, and handles wind well, which makes it the favorite for daily strips with cattle. Polytape is more visible, which helps with horses and with animals still learning to respect the fence, but it catches more wind and wears faster in very windy spots. Either way, look at the number and gauge of metal filaments: the more conductive it is, the longer the run before it loses punch.

How to set up a portable fence step by step

1. Plan the strip: decide how much area the group needs for the grazing period (a day, half a day, or several days).
2. Connect to power: clip the end of the polywire to the electrified permanent fence with a handle or connector, or set up the portable energizer with its ground rod.
3. Unreel the wire: walk the strip line letting the conductor out from the reel.
4. Push in the posts: every 20 to 33 ft (6 to 10 m) on flat ground, closer on uneven ground.
5. Clip the wire at the right height: for adult cattle, about 31 to 35 in (80 to 90 cm); with calves, add a second, lower strand.
6. Tension lightly with the reel brake; the wire should not touch the ground or the grass.
7. Measure voltage at the far end before turning the animals in.
8. When moving the strip, disconnect, reel in, move the posts, and repeat.

With practice, moving a daily strip takes just a few minutes. For an illustrated walkthrough, check our installation manuals.

How to plan strip grazing

The goal is for animals to graze one portion of pasture evenly and then move on, while grazed strips rest and regrow. Some practical guidelines:

• Strip size: depends on available forage and herd size. Start with an estimate, see how much grass is left at the end of the day, and adjust.
• Back fence: use a second portable line behind the animals so they can't return to grazed ground and let it regrow.
• Water: each strip needs water access; many farms use a central lane or a portable trough.
• Rest period: varies with grass species, climate, and season; regrowth is faster in the wet season.
• Residual: don't let animals graze to the dirt; leaving some residual helps the pasture recover faster.

Keep notes as you go. Writing down the strip size, the number of head, and how much grass was left each day gives you a feel for your pasture's carrying capacity within a few weeks, and makes the next rotation far easier to plan.

Sample layout

Element	Suggested setup
Perimeter	Permanent galvanized wire fence, 1 or 2 strands
Water lane	Permanent or semi-permanent fence along the pasture
Daily strip	Front portable line with polywire
Back fence	Second portable line moved every few days
Power	Link to the permanent fence or portable solar energizer

Temporary fencing beyond grazing

A portable fence is also useful to:

• Protect a crop, garden, or young trees while they establish.
• Separate sick or newly arrived animals.
• Fence leased ground without investing in permanent posts.
• Build temporary handling pens.
• Keep livestock away from a ditch, a spring, or an area being restored.

Common mistakes with portable fences

• Using bare metal stakes instead of plastic or fiberglass posts.
• Running the wire so low that grass touches it and drains voltage.
• Forgetting to ground the portable energizer.
• Skipping animal training: before strip grazing, let animals learn the electric fence in a small, well-powered pen.
• Using low-conductivity polywire on very long runs.
• Leaving reels and wire out in the weather all the time, which speeds up wear.

Which energizer for a portable fence?

If the strip is near an electrified perimeter fence, connecting to it is the simplest option. If the pasture is far from power or you want full independence, a portable solar energizer is the best choice. See the options in solar energizers and compare types in 110 V, battery, or solar energizer.

Build your portable fence kit with Electricercas

Since 2014 we've helped ranchers set up rotational grazing systems with portable fencing, with more than 11,000 orders delivered. We ship across Colombia and to other countries. Estimate your materials in the calculator or contact us on WhatsApp at +57 305 453 5264. Tell us your herd size and paddock dimensions, and we'll put your kit together.