Fencing is one of the most significant capital investments on any Irish farm, and getting it wrong is expensive — a badly specified wire fence on a wet Irish hillside can fail within five years, while a well-chosen, correctly installed fence should last 25–30 years. This guide cuts through the product choices and pricing to help you make the right call for your farm type, livestock class, and budget in 2026.
Wire Types: High-Tensile vs Soft Wire
High-tensile (HT) wire is the standard for permanent fencing on Irish farms. Made from harder, higher-carbon steel, it holds tension across longer spans without sagging and is significantly stronger per unit of cross-section than soft wire. HT wire is specified for stock fences, sheep netting, cattle wire, and deer fencing. The trade-off is that it requires proper tensioning during installation — over-strained HT wire can snap; under-strained wire sags. Most agricultural merchants supply HT wire in 200m or 250m coils.
Soft (or mild steel) wire is more ductile and forgiving — it's easier to work by hand and bends without snapping. It's used for temporary repairs, tying, and some types of electrified temporary fencing. It's not suitable as a primary permanent fence material because it stretches and sags under tension over time.
For Irish conditions — wet soils, frost-thaw cycles, heavy cattle pressure — always specify galvanised wire. The galvanising weight matters: look for Class 3 (Zinc 245 g/m²) or better for permanent fencing in exposed or coastal locations. Standard Class 1 galvanising (50–90 g/m²) is adequate for inland, drier positions.
Stock Wire Specifications by Livestock Class
Livestock wire fencing is described by a three-number code: number of horizontal wires / height in cm / maximum spacing between verticals in cm. So 8/80/15 means 8 horizontal wires, 80cm high, 15cm maximum vertical spacing. The common Irish specifications are:
| Spec | Use | 2026 Price (100m roll) |
|---|---|---|
| 6/90/15 cattle wire | Cattle boundary, with barbed top strand | €42–52 |
| 8/80/15 sheep/cattle wire | General purpose, most common Irish spec | €48–60 |
| 13/100/7.5 sheep netting | Sheep, lambs — close vertical spacing | €68–82 |
| 8/80/15 deer fence (higher gauge) | Deer — typically installed 1.8m high | €120–150 (100m) |
| Rabbit netting (31" / 80cm) | Garden/horticultural protection | €38–48 |
Barbed Wire vs Plain Wire Top Strand
A barbed wire top strand is standard on cattle-boundary permanent fencing in Ireland and provides a strong deterrent against cattle leaning on and breaking down the stock wire below. Standard two-strand barbed wire is sold in 200m rolls and costs approximately €18–26 per roll in 2026. It requires stapling at close intervals (every 30–40cm) on timber posts.
Plain high-tensile wire is used as the top strand on sheep fencing and where horses are present — barbed wire and horses are a dangerous combination. One or two plain HT strands on top of a sheep netting fence is standard practice in Ireland.
Electric Fencing: Energisers, Polytape, and Pigtail Stakes
Temporary electric fencing is central to modern rotational and strip grazing on Irish farms. A good energiser, properly maintained earthing, and the right fencing materials can divide a paddock in under 30 minutes and be moved daily. Key components:
Energiser selection depends on total fence length and the animal class you're containing. A basic 1-joule mains unit (e.g. Lacme, AKO, Gallagher) handles up to 5km of fence for cattle, but is marginal for sheep, which require a stronger shock. For sheep or long runs, specify at least 2–3 joules output. Battery energisers (12V or internal 9V) are used away from mains power — an 8-joule 12V solar/battery energiser covers up to 15km and is standard on many Irish grazing systems.
Polytape and polywire are used for temporary divisions. Polytape (20mm or 40mm) is highly visible and preferred for horses and cattle in new enclosures where animals haven't learned to respect the fence. Polywire is thinner, quicker to wind on reels, and preferred for dairy rotational systems. Quality matters — cheap polywire loses conductivity rapidly; specify low-resistance polywire below 35 ohms/100m for runs over 500m.
Pigtail stakes (step-in posts) are inexpensive, fast to install, and sufficient for temporary divisions. Fibreglass rods are stronger than plastic and last much longer. For semi-permanent electric divisions, square steel or fibreglass posts with insulators give better performance.
Earthing is the single most common cause of electric fence failure in Ireland. The energiser needs at least 3 x 1m earth stakes driven into permanently damp ground, spaced 1m apart. On dry soils or in summer, double the earthing. An under-earthed fence loses most of its punch — a cow won't feel it and won't respect it.
Post Types: Timber, Steel T-Post, and Wavin
Round timber posts (treated softwood, 1.65m or 1.8m length, 75–100mm diameter) are the traditional Irish standard. They're easy to drive, hold staples well, and can be driven with a post-rammer or hydraulic driver. Treated to UC4 or higher specification (CCA or alternative preservative), they last 20–30 years in Irish soil conditions. Cost in 2026: approximately €3.80–5.50 per post for standard 1.65m rounds, depending on diameter and volume. Strainer posts (corner and end posts) should be 125–150mm diameter minimum.
Steel T-posts (also called Y-posts or star pickets) are faster to install in free-draining soils and don't rot, but they're harder to drive in rocky or wet ground and hold staples less securely. Common for internal paddock divisions on dry-land farms. Cost: €3.50–5.00 each.
Wavin (HDPE plastic) posts have grown in popularity for electric fencing lines. They're light, don't rot, and work well as intermediate posts between timber strainers. Not suitable as strainer posts. Cost: €2.50–4.50 depending on length.
TAMS Fencing Grant Eligibility (TAMS III 2026)
Farm fencing is eligible for grant aid under the Targeted Agricultural Modernisation Scheme (TAMS III), administered by the Department of Agriculture, Food and the Marine (DAFM). As of 2026, the standard grant rate for eligible fencing is 40% of reference cost, rising to 60% for young farmers and farmers in certain disadvantaged area categories. Key points:
- Only permanent fencing using approved specifications qualifies — temporary electric fencing materials alone do not qualify.
- Reference costs (not actual costs) are used for grant calculation. Reference cost for standard stock fencing is set by DAFM and revised periodically — check the current schedule on the DAFM TAMS portal before planning works.
- Works must be pre-approved before commencing — you cannot claim retrospectively.
- The minimum claim threshold is €2,000 of eligible investment in most cases.
- Fencing erected along watercourses or to exclude livestock from sensitive areas (hedgerows, streams, riparian zones) may qualify at higher rates under specific TAMS measures — check the current tranche conditions on gov.ie.
Agricultural wire fencing in Ireland follows a distinct seasonal demand pattern. The main fencing season runs April through August, when ground conditions allow post driving and farmers have time. By September, merchant yards are running down summer stock and want to move wire before year-end. Buying a full farm's worth of wire in October or November — even if you're not fencing until spring — typically saves 10–18% against peak-season prices, and you'll have no supply delays. Most agri-stores will hold wire in their yard over winter if you've paid for it. The coils are easy to store and don't deteriorate.
Contractor vs DIY Fencing
Fencing contractor day rates in Ireland in 2026 run at approximately €350–500 per man per day, typically working in two-person teams. A two-person team can fence 150–250m of stock wire per day depending on terrain and post type. This puts the all-in contractor cost (labour only, materials separate) at roughly €2.80–6.50 per metre of finished fence, depending on post spacing, ground conditions, and job size.
For straightforward paddock fencing on level ground, a competent DIY farmer with a hydraulic post-driver (hirable from most plant hire companies at €100–160/day) can match or beat a contractor's output and saves the labour cost. The case for a contractor is strongest on steep or rocky ground, for deer fencing (which requires precise tensioning and specialist knowledge), and where your own labour is in short supply.
Suppliers for Fencing in Ireland
For wire, posts, energisers, and fencing accessories, Agridirect has a comprehensive online range with nationwide delivery and competitive bulk pricing for wire and netting. Agristore carries the full range of timber posts, steel T-posts, Gallagher and AKO energisers, polytape and polywire, and in-store staff who can advise on TAMS-compliant specifications. Most agricultural co-op branches also stock wire and posts and can compete on price for volume orders.