A metal arch is a curved structural or decorative form made from metal—commonly steel, iron, aluminum, or bronze—designed to span an opening or create a visual focal point. It typically features a smooth or segmented curve that distributes weight efficiently while conveying strength and elegance. Metal arches may be minimalist and industrial, with clean lines and exposed welds, or ornate and decorative, incorporating scrollwork, lattice patterns, or engraved details. They are often used in architecture (bridges, doorways, façades), landscaping (garden trellises, entry arches), and art installations, where their durability, sleek finish, and ability to be shaped precisely make them both functional and visually striking.