Secure 32-inch high woven wire 6 to 8 inches above the ground outside the enclosure. Use a loop of baling wire at the top and bottom of the wire to attach it to the PVC pipe. Place an energizer cut-off switch on one of the posts to allow easier access to the hives. However, it may encourage tampering with the hives. Other temporary fences can be constructed with electroplastic netting, electrified twine or hot tape attached to posts or trees.
Effectiveness often reflects price.
Key features of fence design are strand spacing, energizer type and grounding effectiveness. Wire strands on a permanent fence should be no more than 8 inches apart, and no more than 12 inches apart on a temporary fence. For both types, the bottom wire should be no more than 8 inches above the ground. It also decreases maintenance by reducing the need to clip vegetation growing under the fence. A chicken wire mat 3 feet wide can be placed around the perimeter of the fence to ensure that the bear is grounded when it touches the fence.