A fence is a type of fence made primarily from metal materials, such as steel, iron, aluminum, or other metal alloys. Metal fences are known for their durability, strength, and often their decorative or ornamental designs. They are commonly used for various purposes, including security, privacy, boundary marking, and aesthetic enhancement. Common types of fences include combat wire, hog wire, barbed wire, and chain-link fences (which are made of steel).