| Siberian Husky |
Jumping, scaling, digging |
6–8 ft solid wall with coyote rollers |
Roaming instinct, high energy |
| Beagle |
Digging, burrowing under gates |
Wood fence with buried L-footer wire |
Olfactory tracking, prey drive |
| Australian Shepherd |
Vaulting, unlatching gates |
6 ft smooth privacy fence with padlocks |
Boredom, high intelligence |
| Border Collie |
Strategic climbing, gate manipulation |
6 ft smooth fence without footholds |
Mental under-stimulation |
| Jack Russell Terrier |
Tunneling, squeezing through gaps |
Narrow picket spacing + subterranean mesh |
Vermin hunting, earthdog instincts |
| Belgian Malinois |
Vertical wall-scaling, jumping |
8 ft commercial fence with lean-ins |
Extreme athletic drive, protection |
| Bloodhound |
Brute-force pushing, digging |
Heavy wooden privacy fence on concrete footer |
Single-minded scent tracking |
| Alaskan Malamute |
Heavy digging, chewing wood |
Concrete-anchored chain link or vinyl |
Territorial roaming, den-digging |
