When selecting park chairs, durability is a top priority. The most durable materials for outdoor seating include powder-coated steel, marine-grade polymer, and UV-resistant polypropylene. Powder-coated steel offers exceptional strength and rust resistance, ideal for high-traffic public spaces. Marine-grade polymer withstands extreme weather conditions without fading or cracking, while UV-stabilized polypropylene combines lightweight comfort with long-term resilience. Teak wood, though expensive, provides natural durability and elegant aging. Aluminum chairs with reinforced frames balance lightness and sturdiness. For maximum longevity, look for materials with corrosion-resistant coatings and warranties of 10+ years. Proper maintenance further extends chair lifespan regardless of material choice.