Start With What Actually Threatens an Alpaca
The fencing that keeps alpacas safe is aimed mainly at what comes in, not what gets out. Alpacas are generally settled grazers that do not challenge fences the way goats do, but they are vulnerable prey animals, and loose dogs and coyotes cause most losses in a small herd. That shapes the right answer: a continuous woven mesh barrier that a dog cannot jump easily, climb, or push under, standing at a height that presents a real obstacle, with every gate closing to the same standard as the fence line itself.
Height alone is not the whole story. A tall fence with a loose bottom edge invites a predator to dig or squeeze beneath it, so the mesh should run close to the ground and stay tensioned, following dips rather than bridging over them and leaving gaps a coyote can work at.
Why Mesh Suits Alpacas Specifically
Woven mesh with small openings works for alpacas in ways it does not for every species. Their slender legs and fine bones are at risk in wide-spaced wire or loose strands, where a foot can slip through and trap, while small mesh openings keep legs, heads, and especially young crias from poking through and becoming stuck or exposed to whatever is outside. The continuous surface also blocks the visual and physical access that encourages dogs to lunge and grab through a fence.
Avoid barbed wire around alpacas entirely. Barbs tear skin beneath a heavy fleece where wounds hide until they are serious, and a fleece caught on barbs can hold a panicked animal against the fence. Smooth woven wire, properly strained between solid posts with braced corners, gives the protection without that injury profile, and it doubles as a fence alpacas themselves respect because they can clearly see it.
Adding an Electric Deterrent Outside
A single offset electric strand on the predator side of the fence teaches dogs and coyotes to keep their distance before they ever test the mesh. Placed low enough to meet an investigating nose, it turns curiosity into retreat, which matters because most predator problems begin with repeated testing of one weak stretch. Keep vegetation cleared from the strand so it does not short out, and check its charge as part of your routine rather than after an incident.
Gates deserve the same suspicion as the fence line. A mesh gate that closes flush, latches securely, and leaves no gap at the hinge post or beneath the frame is essential, since predators find gate gaps long before they trouble sound fencing. Where the herd is small and pressure from dogs is known locally, some keepers also run a guardian animal with alpacas, but a guardian supplements sound fencing rather than replacing it.
Walking the Line Like a Keeper
Inspect the perimeter regularly and after storms, looking for dug soil along the bottom wire, leaning posts, branches fallen onto the mesh, and any place where erosion has opened space beneath the fence. Alpacas will not tell you a stretch has failed; the first sign is usually the incident you were trying to prevent. Repair small faults the day you find them, because a predator that has once got in returns to the same spot with confidence.
Bring the same attention to the night area, where alpacas rest and crias are most exposed. A smaller, especially secure night paddock close to the buildings gives the herd a safer core even if the outer grazing fence is extensive, and makes evening checks quick enough that they actually happen.
Sharing those inspection findings matters on a family holding, and KinsLe Family Sharing puts your alpacas' profile, fence notes, and care details in front of everyone who helps, so a weak stretch spotted by one person is known to all.