How to Stop a Dog From Digging Under or Escaping the Fence

What is a fence actually supposed to do? A lot of owners answer that question with “keep the dog in,” and then are baffled when a determined dog finds the one gap, the one loose board, the one soft patch of dirt, and gets out anyway. A fence is a physical boundary. It was never going to solve a behavioral or emotional problem on its own, and that gap between what a fence can do and what owners expect it to do is where most escapes happen.

I’ve worked with a lot of dogs who dug out of yards, and one still sticks with me: a two-year-old terrier mix named Biscuit, about 22 pounds, who lived with a family on a quarter-acre lot with a six-foot wood privacy fence. The owners called because Biscuit had gone under the fence three times in six weeks, always in the same back corner, always between 11 a.m. and 1 p.m. on weekdays. That corner backed up to a greenbelt with a lot of squirrel and rabbit traffic, and the timing lined up with when the family left for work and the yard went quiet. It wasn’t that the fence had failed. It was that nothing in that corner was competing with what was on the other side of it, and Biscuit had three hours alone with nothing else to do.

Why the fence is rarely the real problem

Dogs escape for a small number of predictable reasons, and knowing which one you’re dealing with changes what actually works. Boredom and under-stimulation are common, especially in adolescent and working-breed dogs left alone for long stretches. Scent and prey drive pull dogs toward the perimeter, particularly along a fence line that borders wildlife activity, a walking path, or another dog’s yard. Some dogs dig for thermoregulation, cooling their bellies in loose dirt on hot afternoons, which is a normal, unlearned behavior and not a sign that something is wrong. And a smaller group of dogs escape because they’re anxious, especially around thunderstorms, fireworks, or separation from a particular person, which is a different problem than a bored dog testing the yard.

The American Kennel Club notes that digging is a highly enjoyable, normal canine activity, and short-legged, earth-dog breeds like terriers and dachshunds are often following an instinct to find something underground, not making a considered decision to escape. That distinction matters because it means digging is best managed, not eliminated outright, and a dog who’s never allowed to dig anywhere will often redirect that need to the one spot you least want them to.

A myth worth retiring: a taller or sturdier fence solves this

I hear this a lot: “we’ll just put in a better fence.” Sometimes that’s part of the answer. But a fence, on its own, is a wall between the dog and the thing pulling at them, not a solution to the pull itself. A dog who is bored, under-stimulated, or anxious will test a six-foot privacy fence with the same persistence they tested a four-foot chain-link one, just with a different technique. I’ve seen owners spend real money on fence upgrades only to watch the dog shift from digging to climbing, or from one corner to another, within a few weeks.

That’s the piece I want owners to sit with before they call a fence company: the fence is the last line of defense, not the plan. The plan is reducing the dog’s motivation to leave in the first place, and then backing that up with a barrier that closes off the specific escape method your dog has already shown you they’ll use.

A sequence that works in real households

Start by identifying the method before you buy anything. Watch the yard for a few days, or check the fence line for fresh dirt, chewed boards, or worn grass along a specific stretch. This tells you whether you’re dealing with a digger, a climber, a jumper, or a squeezer working a gap.

For diggers, the Whole Dog Journal and several rescue-behavior resources recommend burying L-footers, sections of chicken wire or chain-link fencing laid flat along the base of the fence and staked into the ground, extending 12 to 18 inches into the yard. This works because it doesn’t rely on the dog choosing not to dig; the dog can dig all it wants and simply won’t hit soft, escapable ground. If your dog has a favorite digging spot, consider giving them a legitimate one instead, a sandbox or a loose-dirt patch loaded with a few buried toys, since redirecting a normal behavior tends to work better than trying to suppress it outright.

For climbers and jumpers, a fence extension angled inward at 45 degrees, coyote rollers along the top rail, or simply a taller solid-panel section over the specific spot they’ve been using can close that route. For gap-squeezers, walk the entire perimeter and patch every loose board, gap under a gate, or space where two fence sections meet, because a dog who’s found one exit will keep checking for others.

Alongside the physical fix, address the motivation. A structured outlet for energy before the low-supervision hours, a food puzzle or scatter-feed instead of a bowl, and a supervised digging box will do more for a bored or scent-driven dog than any amount of fence hardware. For a dog whose escaping tracks with thunderstorms or being left alone, that’s a conversation for your veterinarian, not a fencing project, since anxiety-driven escape attempts usually need a behavioral plan on top of any physical barrier.

I’d also treat identification as part of the containment plan, not a backup for when containment fails. An estimated 10 million dogs and cats go missing or are stolen in the U.S. each year, and the American Veterinary Medical Association reports that microchipped dogs are reunited with their owners at more than double the rate of dogs without one, 52.2% versus 21.9%. A microchip only helps if the registration is current, so this is worth checking even if your fence has never had a breach.

Where I land

I’ve spent enough time in backyards with owners who’d already tried a taller fence, buried wire, and a spray deterrent, in whatever order, to land firmly on this: fix the motivation and the specific escape method together, or you’ll keep chasing the symptom. The counterargument I hear most is that some dogs are simply “born to run” and no amount of enrichment will change that. There’s truth in it for a handful of high-drive working breeds, and for those dogs I do think a secured, supervised outlet, off-leash time in a fenced area, structured recall training, matters as much as anything you do to the fence itself. But for the overwhelming majority of dogs I’ve evaluated, the digging or jumping stopped once the boredom, heat, or scent-driving factor was addressed and the specific weak point was physically closed off. Biscuit’s family added an L-footer along that one corner and started a ten-minute sniff walk before they left for work; the digging stopped within two weeks.

Related reading if you’re setting up a new dog’s home boundaries: Baby Gate vs. Playpen for a New Puppy covers indoor containment decisions, and At-Home Grooming vs. a Professional Groomer and Best Dog Nail Grinder are useful if digging has your dog’s nails and paws taking a beating.

If your dog’s escape attempts come with obvious distress, pacing, drooling, or panic at being left alone, is that still a fencing problem, or is it time to loop in your vet on the anxiety underneath it?