If a resourceful cat finds its way into your yard you may have to install more mesh on the other side of the fence.
Cat fence barrier bunnings.
The barrier angles into your yard providing an overhang which cats will not climb.
Modify existing fence with a cat proof fence roller cat fence top rollers are repurposed coyote rollers.
Wireless electronic fences are another great option you can choose to keep your cat inside your yard.
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There is also a vertical component inhibiting the entry of feral cats and other animals from outside your yard.
Coyote rollers are cylinders like a length of pipe 1 5 3 in diameter that is set just above the fence and spin.
If your main concern is keeping cats out angle the bars toward the outside of.
Find whites 600mm pest fence spike at bunnings warehouse.
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