Can Possums Climb? Fences, Trees, and What Stops Them

Opossums have a reputation for being slow and clumsy on the ground, which makes their climbing ability genuinely surprising to people who have not seen it directly. It is not a minor skill for them — it is one of their primary defences.

What makes them capable climbers

The prehensile tail is the detail most associated with opossums, and it is real — but it functions as a stabiliser and balance aid rather than a fifth limb capable of supporting the animal’s full weight for sustained periods, which is a common exaggeration.

What they can climb easily

Trees, chain-link and wire fencing, lattice, trellises, downspouts, and anything offering a textured or mesh surface their claws can grip. Given access to an overhanging branch near a roofline, reaching the roof itself is straightforward for them.

What actually stops them

Smooth, solid vertical surfaces — with no mesh, ledges, or texture — are genuinely difficult for an opossum to climb, since their claws need something to grip rather than a flat surface to adhere to.

Removing nearby overhang matters more than fence height in practice: an opossum that can reach a tree branch overhanging a fence or roofline bypasses the barrier entirely regardless of how tall or smooth it is. Trimming branches back a meaningful distance from rooflines and fence lines closes this route.

Solid fencing rather than chain-link, where exclusion genuinely matters, removes the easy grip points mesh provides.

Are they actually a threat?

Opossums are generally not aggressive toward people or pets and prefer to avoid confrontation entirely, using their threat display and, if that fails, playing dead rather than attacking. Their climbing ability is mostly relevant as a practical matter for keeping them out of specific areas — attics, coops, garbage — rather than as a safety concern in itself.