Garden Fence Calculator

A garden fence calculator has to solve two separate problems that a normal perimeter fence never has to consider at the same time: keeping animals from jumping in over the top, and keeping a different set of animals from digging in underneath. Deer clear a low perimeter without effort, while rabbits, groundhogs and voles go under rather than over, so a fence that only addresses height leaves half the garden exposed. The actual fix is a vertical wire mesh perimeter paired with a buried L-shaped apron that bends outward at ground level, which is exactly what this calculator sizes: perimeter rolls of welded wire or hardware cloth, posts at the spacing the mesh needs, and the underground apron length and anchor stakes that stop a burrowing animal before it clears the line.

The apron is the part of this take-off that a general fence calculator has no equivalent for. Mesh that bends 90 degrees at ground level and extends 6 to 12 inches outward underground stops a digging animal because it hits a wire barrier below the surface rather than open soil, and the apron can either be buried a few inches under turf or mulch, or laid flat on the surface and pinned with stakes every few feet, since grass grows through the mesh within weeks either way and the visual difference disappears. Skipping the apron and stopping the wire at grade is the most common reason a new garden fence fails within the first season: it looks complete above ground while leaving an open route underneath it for rabbits and groundhogs that a taller fence alone will never address.

Mesh size and fence height both depend on which animal the garden actually needs to exclude, and they are not the same decision. Half-inch or 1-inch galvanized hardware cloth on the bottom two feet of the fence stops small rodents and young rabbits that would pass straight through wider welded wire, while deer exclusion needs real height, at least 8 feet for a vertical fence, since a 6 foot fence is well within an adult deer's jumping range. A fence built to a middle height of 5 or 6 feet for deer accomplishes very little: it is tall enough to look like a deterrent and still low enough for a deer to clear, which is the most common design mistake on garden perimeters built to look right rather than to test right against the taller deer fence calculator standard. If deer are not the target, posts can run on wider spacing and the fence can stay at a height matched to rabbits, voles and groundhogs instead.

Garden fencing borrows directly from the other livestock and animal calculators on this site even though the scale is usually smaller. The underground apron technique mirrors what keeps goats from pushing under a paddock fence on the goat fence calculator, and gardens that also need to keep a family dog out of raised beds can run the dog fence calculator alongside this one for the containment side rather than the exclusion side of the same perimeter. Where chain link is the preferred material for a larger garden or orchard enclosure, the chain link fence calculator handles that take-off with the same perimeter logic. The guide on deer fence height, what actually works is worth reading before committing to a height, and the piece on the best fence for a dog covers containment choices if pets share the same yard.

Once mesh type, height and apron depth are decided, run the perimeter through the fence perimeter calculator for an irregular garden footprint, and check post spacing against the fence post calculator if you are moving away from the lighter T-post or U-channel posts this calculator assumes toward a heavier wood or metal post. The fence materials guide compares wire coatings and mesh durability in garden soil specifically, and the property line and setback guide is worth a look if the garden perimeter runs anywhere near a shared boundary line. The rest of the animal exclusion and containment calculators on this site, including deer, goat and dog, sit together under the animals category page.

Gate design on a garden fence deserves more thought than it usually gets, since it is the one spot in an otherwise continuous wire perimeter where both the height and the apron protection can fail at once if the gate is not built carefully. A garden gate needs the same anti-dig treatment as the rest of the fence line, either a buried apron section under the gate swing or a sill board the gate closes against, and the latch should be one that stays closed on its own rather than relying on someone remembering to secure it every time they carry out a harvest basket. Seasonal maintenance matters too: mulch, compost and fallen leaves pile up against the base of a garden fence over a season, and if that buildup bridges over the buried apron it can give a digging animal a shortcut that defeats the underground barrier entirely, so clearing debris away from the fence line once or twice a year keeps the original apron depth doing its job.