Pigs are strong, persistent and surprisingly good at finding weak points in fencing. A practical guide to fencing options that actually hold pigs in Australian conditions.
Pig fencing has a reputation problem — many new keepers are surprised at just how effective pigs are at testing, pushing through, or digging under fencing that would comfortably contain sheep or goats. Understanding why standard fencing often fails for pigs, and what actually works, saves real money and frustration.
Why Standard Fencing Often Fails
Pigs use their snout to investigate, root, and push against any perceived weakness in a fence line, and a determined pig — particularly hardier heritage breeds like Tamworth — has substantial strength concentrated low to the ground exactly where most standard fencing is weakest. Pigs also dig, and a fence that isn't secured at ground level invites pigs to simply go under rather than through.
Electric Fencing
Electric fencing, properly installed and maintained, is widely considered the most cost-effective and genuinely reliable option for containing pigs in Australian small-farm conditions. A single strand of poly wire or tape at snout height (typically 20–25cm above ground for adult pigs, lower for young piglets) delivers a memorable but harmless shock that teaches pigs to respect the boundary — once trained, most pigs avoid the fence reliably even when the power is briefly off.
Training is the key step: introduce pigs to a smaller, well-charged electric enclosure first, ideally with a visible non-electric barrier just inside the electric line during the first few days, so the pig's first experience of the fence is a deliberate, controlled lesson rather than escaping immediately because the fence wasn't yet respected. A 6,000+ volt energiser is recommended; weaker units may not deliver a sufficiently memorable deterrent through thick skin and bristle.
Ringlock and Heavy Mesh
Permanent ringlock or heavy welded mesh fencing provides genuinely robust physical containment without reliance on a power source, which matters for keepers wanting a fail-safe permanent boundary. Mesh size matters — small enough to prevent piglets squeezing through, sturdy enough to resist adult pig pushing. Bury the bottom of the fence or add a buried apron (mesh laid flat and buried at the base, extending outward) to prevent digging-under, a real and common pig fencing failure mode that's easy to overlook until it happens.
Combining Systems
Many experienced Australian pig keepers use a permanent ringlock or heavy mesh perimeter for the overall paddock boundary, combined with electric fencing for internal subdivision and rotational grazing or pig-tractor systems. This gives a fail-safe outer boundary while keeping the flexibility and lower cost of electric fencing for moveable internal divisions.
What Doesn't Work
Standard sheep or goat ringlock without a buried apron is a common and costly mistake — pigs will dig under it, particularly in softer soil. Single-strand plain wire without electrification is rarely adequate on its own for anything beyond very calm, well-fed pigs with no motivation to test the boundary. Light-gauge temporary fencing intended for poultry or small animals is generally inadequate for pigs beyond very young piglets.
Cost Comparison
| Fence Type | Cost (Installed) | Containment Reliability | Best Use |
|---|---|---|---|
| Electric (poly wire, trained pigs) | $3–$6/m | Very good | Internal subdivision, rotational systems |
| Ringlock with buried apron | $20–$35/m | Excellent | Permanent perimeter boundary |
| Heavy mesh panels | $25–$45/m | Excellent | Small yards, farrowing areas |
| Standard ringlock, no apron | $15–$25/m | Poor | Not recommended alone for pigs |
The practical recommendation for most Australian small-scale pig keepers: invest in a properly buried, robust perimeter fence once, and use well-maintained electric fencing for any internal flexibility you need. The upfront cost of doing fencing properly is consistently lower than the cost — in escaped pigs, damaged gardens, and repeated re-fencing — of doing it inadequately the first time.