Building
Barriers: grade, height, climb-proof
Barrier strength and minimum height are published per species. This page counts how the 136 records distribute across grades.
Grade is a fence strength class; height is a minimum. Climb-proof species need a closed top, and some species accept a water barrier instead of a fence section.
| Barrier grade | Species | Examples |
|---|---|---|
| 1 | 10 | Blackspotted Puffer, Clown Triggerfish, Galápagos Giant Tortoise |
| 2 | 53 | Aardvark, African Penguin, African Wild Dog |
| 3 | 16 | African Leopard, Cape Buffalo, Eurasian Brown Bear |
| 4 | 6 | African Savannah Elephant, Asian Elephant, Black Rhinoceros |
| Field | Value |
|---|---|
| Species requiring climb-proof barriers | 18 |
| Species that accept water barriers | 8 |
- Read the grade before designing the fence line — a grade-2 fence does not hold a grade-4 species.
- Climb-proof species (the count above) need a closed top, not just a taller fence.
- Water barriers are allowed only where the record says so.
- Escapes are still a tracked issue in 1.0.5: check the barrier before reporting a bug.
FAQ
FAQ
Common questions about this topic.
What does barrier grade mean?
A strength class for the barrier type; the species record states the minimum grade and height.
Do I always need the highest grade?
No — use the value published for that species. Mostly the records sit at grade 2 or 3.
Why do animals still escape?
1.0.5 lists escapes during certain behaviours as ongoing; check grade, height and climb-proof status first.