Low to the ground, built to go under
The Glen of Imaal Terrier comes from the Wicklow glens of Ireland, where it worked as a silent hunter of badger and fox and even turned a spit by walking a wheel. That history produced a dog who is longer than tall, immensely strong for its size, and completely at home pushing into earth and tight burrows. Judging this breed's fencing needs by its short legs misses the point entirely. A Glen rarely plans to go over your fence. The plan, if a scent draws attention at the boundary, is to go through the soil beneath it.
Terrier determination completes the risk. Once a Glen decides something interesting is under or beyond the fence, the dog will work at the spot with a persistence that surprises owners used to more distractible breeds. A small scrape at the base on Monday can be a genuine tunnel by the weekend if nobody checks, especially in soft or sandy soil after rain.
Securing the bottom edge first
For a Glen, spend your effort at ground level. Panels or mesh should extend into the soil or meet a buried barrier so that digging at the visible base meets resistance immediately rather than rewarding progress. Laying mesh or paving along the inside of the fence line at known digging corners gives you a surface you can inspect at a glance. Fill and firm any started hole the same day, because a Glen will return to prior work with enthusiasm.
The gate deserves the same ground-level thinking. A gap under a garden gate that a taller dog would ignore is exactly Glen sized, so check the clearance with the gate closed and adjust if daylight shows underneath. Height still matters modestly, since a sturdy Glen can scramble more than its build suggests when prey is visible, but a modest fence with a sealed base will outperform a tall fence with a loose bottom edge for this breed every time.
Life in the yard with a Glen
Glens are generally quieter and less sparky than many terriers, and they enjoy a garden they can patrol, sunbathe in, and investigate at their own pace. Give that investigation legitimate targets. A digging pit with buried toys in one approved corner teaches your dog where excavation pays, and rotating scent games keeps a working nose busy inside the boundary. A Glen whose hunting brain is occupied is a Glen who treats the fence as scenery rather than a project.
Still supervise a young Glen outdoors until you know its habits, and be honest about wildlife traffic in your area. Gardens visited nightly by rabbits or rats will test any terrier's containment far harder than a quiet plot, and knowing that pressure exists lets you reinforce the boundary before the first escape rather than after it. Keep outdoor time companionable too, since this breed bonds deeply and settles best near its people.
If your Glen tunnels out
Search low and close first. A Glen who has dug out after prey may be in the next garden, under a shed, in a hedge bottom, or working along a burrow system rather than running streets, so check hiding and digging places methodically on both sides of the fence. Call and then listen, because a dog who has got into a tight space may answer or scrabble where you cannot see it.
Once safely home, repair the exit properly rather than just filling the hole, and treat the spot as a known weak point to monitor. Good collar identification helps anyone who finds a muddy terrier in their garden reach you quickly, and KinsLe backs Glen owners with its Lost Pet Alert System for alerting nearby pet lovers when a tunneller goes missing.