Why is cast iron outdoor seating rarely used in earthquake-resistant designs?
Cast iron outdoor seating is seldom incorporated into earthquake-resistant designs due to several critical drawbacks. First, cast iron is extremely heavy, which increases the risk of injury or damage if it topples during seismic activity. Second, its brittle nature makes it prone to cracking or shattering under stress, unlike more flexible materials like steel or aluminum. Additionally, cast iron lacks the ductility needed to absorb and dissipate seismic energy, a key requirement for earthquake-resistant structures. Modern designs prioritize lightweight, durable materials that minimize hazards while maintaining stability. For outdoor furniture in seismic zones, alternatives such as powder-coated aluminum or reinforced polymers are often preferred for their balance of strength and safety.
