The answer to 'how often to fence' is that the recommended frequency for maintaining or replacing a fence depends on several factors, including the type of fence, the climate, and the level of use. On average, most fences need to be checked and maintained every 1-3 years, and fully replaced every 15-25 years.
Wooden fences typically need the most frequent maintenance, with boards and posts requiring inspection and replacement every 1-2 years. Vinyl and aluminum fences are more durable and may only need a thorough inspection every 2-3 years. Climate also plays a role, with fences in harsher environments needing more frequent attention. Regularly maintaining your fence by tightening hardware, replacing damaged boards, and keeping it clean will help extend its lifespan.