Fencers tend to use too many posts, which likely stems from people’s experience with barbed wire, where the rule of thumb was 1 post every rod length (16.5 feet).
HOW TO FIX IT:
In an electric-fencing system, Derynck reccomends fence post spacing 80-100 feet apart, or about 50 posts per mile. He suggests using a “stay” – a shorter post that sits on top of the ground and holds wires up – if posts are spaced 100 ft. apart. Gerrish prefers his fence post spacing closer together, at 50-70 feet.