When selecting outdoor seating for coastal or high salt spray environments, durability and corrosion resistance are critical. The best materials for these conditions include:

1. Marine-Grade Aluminum: Lightweight yet strong, this material resists rust and corrosion, making it ideal for coastal areas. Powder-coated finishes add extra protection.

2. Stainless Steel (Grade 304 or 316): Highly resistant to saltwater corrosion, especially Grade 316, which contains molybdenum for enhanced durability.

3. Synthetic Wicker (HDPE): Unlike natural wicker, high-density polyethylene (HDPE) wicker won’t degrade in salty air and is easy to clean.

4. Teak Wood: Naturally resistant to moisture and pests, teak develops a silvery patina over time but remains structurally sound.

5. Polyethylene (PE) Resin: UV-stabilized resin furniture is salt-resistant, fade-proof, and requires minimal maintenance.

For longevity, opt for materials with protective coatings and avoid untreated metals or low-quality plastics. Regular rinsing with fresh water can further extend the life of your outdoor furniture in salty conditions.