Skunks can do both, and which method they choose depends largely on the species of skunk, the type of fence, and what’s motivating them to get to the other side. Striped skunks, the most common species across North America, are powerful diggers that will almost always go under a fence before trying to go over it. Spotted skunks, smaller and far more agile, climb readily and can scale a standard fence with little trouble. If you’re trying to keep a skunk out of your yard, the honest answer is that a fence alone probably won’t do it without some additional modifications below ground.
Striped Skunks vs. Spotted Skunks
Most people dealing with skunks in their yard are dealing with the striped skunk (Mephitis mephitis), which is found across most of the United States, southern Canada, and northern Mexico. These are stocky, low-to-the-ground animals with short legs and long, heavy front claws built for tearing into soil. Their body plan is that of a digging specialist. They dig for grubs and insects, they dig to create dens, and they dig to get past obstacles. Climbing is not impossible for them, but it’s clearly not their first instinct or their strongest suit.
Spotted skunks (Spilogale species) are a different animal in almost every practical sense. They’re significantly smaller, often weighing less than two pounds compared to the striped skunk’s six to ten. They’re quicker, more flexible, and genuinely comfortable off the ground. Spotted skunks climb trees to forage, escape predators, and find denning spots. A fence that would give a striped skunk real trouble might barely slow a spotted skunk down. If you live in an area where spotted skunks are present, particularly parts of the central and southeastern United States, a fence-only approach to skunk exclusion is essentially futile without a top barrier.
How Skunks Dig Under Fences
A striped skunk’s front claws are among the most efficient digging tools in the small-mammal world. They can excavate a shallow trench under a fence surprisingly fast, sometimes in a single night. The typical approach is straightforward: the skunk reaches the base of a fence, finds soft soil or a slight gap where the bottom rail doesn’t sit flush against the ground, and starts pulling dirt toward itself with those curved front claws. They don’t need a large opening, either. A gap of three to four inches at the base of a fence is more than enough for a motivated striped skunk to squeeze through, and they can widen a smaller gap quickly.
Skunks tend to dig at points where the soil is already loose or disturbed. The base of a gate, a spot where rainwater has eroded soil away from the fence line, or a corner where two fence sections meet at an angle are all common entry points. If you’re finding skunk activity in your yard and can’t figure out where they’re getting in, check these spots first. You’ll often find a shallow depression or a fan of displaced soil pushed inward from the fence line.
The depth of digging varies, but most skunks don’t need to go deep. They’re not burrowing straight down like a gopher. They’re scooping out a shallow arc just under the bottom edge of the fence, rarely going more than four to six inches below grade. This matters for prevention, because you don’t need to bury your barrier three feet deep to stop them.
Can a Striped Skunk Actually Climb?
Yes, but with significant limitations. Striped skunks can climb chain-link fences because the diamond pattern gives them footholds for their claws. They can also manage rough-textured wood fences and stacked stone walls where there are ledges and crevices to grip. What they struggle with are smooth vertical surfaces: vinyl fencing, smooth-planed wood privacy fences, and metal panels. Their claws need something to hook into, and their short legs and heavy body make pulling themselves upward strenuous.
Even on a climbable surface, striped skunks are slow and awkward climbers. They don’t scamper up a fence the way a raccoon or squirrel does. It’s more of a labored, deliberate haul, and they seem to know it. Given a choice between climbing over and digging under, a striped skunk will almost always dig. You’re most likely to see climbing behavior when the ground is too hard to dig, such as frozen soil in winter, or when the fence sits on concrete or rock, or when the skunk is being chased or startled and going over is the fastest escape route.
Fence height matters less than you might think for a determined striped skunk. They’ve been observed getting over four-foot chain-link fences, though anything taller gives them real trouble. A six-foot privacy fence with a smooth surface is functionally unclimbable for most striped skunks. But again, that same skunk will simply go underneath if the bottom isn’t secured.
How to Skunk-Proof a Fence
The single most effective modification is an underground apron of hardware cloth or welded wire mesh along the base of your fence. This is a strip of mesh, typically 12 to 18 inches wide, buried horizontally or at an outward-facing angle just below the soil surface along the outside of the fence line. When a skunk starts to dig at the fence base, its claws hit the mesh within a few inches and can’t get through. The mesh doesn’t need to be buried deeply; four to six inches of soil cover is plenty. Some people lay the mesh on the surface and let grass grow through it, which also works but is less visually clean.
The key details that make this work:
- Mesh gauge: Use hardware cloth with openings no larger than half an inch, or welded wire with one-inch-by-one-inch spacing. Standard chicken wire is too flimsy; skunks can tear through lightweight poultry netting.
- L-shaped installation: Bend the mesh at a right angle so part of it runs vertically against the fence base and part extends outward underground. The outward portion is what catches the digger.
- Overlap at joints: Where mesh sections meet, overlap them by several inches and secure with hog rings or zip ties. A gap between panels is an invitation.
- Gate bottoms: The most common weak point. A gate that swings over unprotected ground leaves a gap every time. Consider a concrete sill under gates or a mesh flap that lies flat when the gate closes over it.
For spotted skunks or areas where climbing is a concern, adding a floppy extension to the top of the fence can help. This is a strip of mesh or netting attached at the top and angled outward at about 45 degrees, similar to what’s used for coyote rollers but less expensive. A climbing animal reaches the top and encounters an unstable overhang that tilts away from the fence, making it very difficult to get a grip and pull over. This is overkill for most striped skunk situations but reasonable if spotted skunks or raccoons are also a problem.
Why Skunks Want Into Your Yard
Skunks don’t wander randomly. Understanding what’s attracting them often matters more than the fence itself, because a skunk with no reason to visit your property won’t bother testing your barriers in the first place.
The number-one attractant in suburban yards is lawn grubs. Skunks have an extraordinary sense of smell and can detect beetle larvae a few inches below the surface of your lawn. If you wake up to find small, cone-shaped holes poked into your grass or patches of turf peeled back like carpet, grubs are almost certainly the draw. Treating your lawn for grubs with beneficial nematodes or milky spore eliminates the food source and, over time, the skunk visits.
Other common attractants include pet food left outside, open compost bins, fallen fruit from trees, accessible garbage cans, and bird feeders that scatter seed on the ground. Skunks are opportunistic omnivores with a particular fondness for insects, but they’ll happily eat cat food, rotting fruit, or kitchen scraps if those are easier to access. Removing or securing these food sources doesn’t require any fence work at all and can be more effective than a physical barrier.
Shelter is the other major draw. Skunks look for dark, protected spaces to den in, especially from late fall through early spring. The space under a deck, a porch, a garden shed, or a low-clearance addition is ideal skunk real estate. If your property offers good denning sites, skunks will work harder to get past your fence. Closing off these spaces with the same hardware cloth used for fence aprons is a good complementary measure.
What to Do if a Skunk Is Already Inside
If a skunk is already visiting your yard regularly or has taken up residence under a structure, the approach changes. You don’t want to seal the animal inside its den, and you don’t want to provoke a spray. Skunks are generally mild-tempered and surprisingly tolerant of human proximity, but they will spray if they feel cornered or threatened. The warning signs are distinctive: foot-stamping, a raised tail, and in the case of spotted skunks, a handstand with the rear end aimed at you.
For a skunk that’s passing through, the simplest approach is to leave a clear exit route and give the animal time. Most skunks that wander into a fenced yard were following a scent trail and will leave on their own once they’ve finished foraging, usually around dawn. If you need them out sooner, a bright light and a radio tuned to talk programming, placed near the den or the area they’re frequenting, will often encourage them to leave within a day or two. Skunks dislike sustained noise and light because it signals that a space isn’t safe for denning.
For a skunk denning under a structure, a one-way exclusion door is the humane and effective solution. This is a device made of mesh or lightweight material that attaches over the den entrance and allows the animal to push out but not re-enter. Once the skunk leaves to forage at night, it can’t get back in. Wait several days to confirm the den is empty before permanently sealing the entrance, and avoid using exclusion doors during spring and early summer when a female may have dependent young inside. Trapping baby skunks in an inaccessible den space is both cruel and will create a much worse smell problem than anything a live skunk would produce.
Skunks and Other Common Barriers
Fences aren’t the only structures skunks navigate around suburban properties, and knowing how they interact with other barriers helps complete the picture.
Retaining walls, especially those made of stacked stone or landscape blocks without mortar, present very little challenge. The joints between blocks provide both climbing grips and digging entry points where the base meets the soil. Poured concrete retaining walls are more effective but still require attention at the base where soil erosion can create gaps.
Window wells are a common skunk trap. Skunks exploring the foundation of a house can fall into an uncovered window well and lack the climbing ability to get back out. Covering window wells with metal grates or bubble covers prevents this and saves you from a very unpleasant rescue operation. If you find a skunk in a window well, leaning a rough board into the well at a gentle angle gives the animal a ramp to walk out on its own, usually overnight.
Garden bed edging, raised beds, and short decorative fencing are essentially invisible to skunks. Anything under about 18 inches high is stepped over or pushed through without a pause. If you’re trying to protect a specific garden bed from skunk digging, hardware cloth laid just below the soil surface across the entire bed is more reliable than any perimeter barrier. The mesh lets plant roots grow through but prevents the digging that skunks use to hunt grubs and worms.
Repellents and Deterrents
The commercial market for skunk repellents is large, and the evidence for most of these products is thin. Granular repellents containing castor oil or capsaicin may reduce skunk visits temporarily, but skunks habituate to scent-based deterrents relatively quickly, especially when a strong food source like a grub-rich lawn is present. Predator urine products (marketed as coyote or fox urine) have the same habituation problem: they work for days to weeks, then the skunk learns that no actual predator is present and returns.
Motion-activated sprinklers are more effective than scent repellents for most people, because the sudden burst of water and noise triggers a startle response that skunks don’t easily habituate to. Placement matters: aim the sprinkler at the specific entry point along the fence line rather than broadly across the yard. Skunks are creatures of habit and tend to use the same path in and out of a property night after night, so targeting that path concentrates the deterrent effect where it matters.
Ammonia-soaked rags placed near a den entrance are sometimes recommended, and this does work as a short-term eviction tool because the smell mimics the scent profile of predator urine in a concentrated way. It’s not a permanent solution, but as a first step to encourage a denning skunk to relocate before you seal up the entrance, it’s cheap and reasonably effective.
Bright outdoor lighting at night can reduce skunk activity because skunks strongly prefer darkness and feel exposed in well-lit areas. This isn’t a barrier in any physical sense, but a permanently lit yard perimeter discourages casual foraging visits. The downside is obvious: nobody wants a floodlit backyard every night. Timer-controlled or motion-activated lights offer a compromise, though motion activation works better for deterrence since the sudden change from dark to bright is more disruptive to a foraging skunk than a steady light it can see from a distance and choose to avoid.