How long does it take for a galvanized gate to rust in a humid climate?

Galvanized gates are coated with zinc to protect against rust, which can significantly extend their lifespan even in humid climates. However, factors such as the thickness of the galvanization, exposure to moisture, and environmental conditions can affect durability. Generally, a well-maintained galvanized gate can last for 10 to 20 years before signs of rust appear, but in particularly harsh conditions, it may start to show rust within 5 to 10 years. Regular maintenance and protective coatings can help prolong its lifespan.