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A well-maintained pipe fence can last anywhere from 20 to 50 years, depending on factors like material, climate, and maintenance. Galvanized or coated pipes resist rust and corrosion better than other alternatives, so they tend to last longer, especially in humid or wet environments. Routine maintenance, such as inspecting for damage, removing rust, and applying protective coatings, helps extend the fence’s lifespan significantly.

Corrugated metal is a strong, long-lasting material. A corrugated metal fence will typically last several decades, and the metal panels themselves may last for 40 to 60 years. The main thing you should be concerned about is the fence posts. Wood fence posts will last about five years if you purchase them untreated or about 15 years if you treat them after installation. Keep an eye on your posts and look out for insect damage and rot.

A high-quality wrought iron fence is one of the most durable options available and can last a lifetime, or even centuries, with proper care. However, wrought iron is susceptible to rust and corrosion if not maintained.

To maximize its lifespan, regular maintenance is required. This includes:

• Cleaning the fence with soapy water every six months.

• Scrubbing away any rust or corrosion as soon as it appears.

• Applying a new coat of paint or refinishing the fence every few years to protect the metal from moisture and oxygen. The recommended frequency varies, with sources suggesting anywhere from every 1 to 10 years.

If significant rust develops, it's wise to hire a professional fence repair company to clean the rust and reseal the fence. The cost to refinish a fence is typically between $5 and $12 per square foot, a worthwhile investment to ensure its longevity.

The ideal distance between fence posts depends on several factors, including the terrain, the purpose of the fence, and the material used. For different types of fences, here are some general guidelines:

• Wood and Metal Fences: Posts should be spaced between 5 and 8 feet apart.

• Vinyl Fences: Spacing can be between 6 and 8 feet.

• Chain-Link, Mesh, or Lattice Fences: Posts can be set anywhere from 4 to 25 feet apart, with 4-10 feet being common for chain-link.

• Wire Fences: Spacing can be up to 12 feet apart.