When selecting outdoor furniture that will brave the elements year-round, particularly constant rain, the choice of material becomes paramount for longevity, appearance, and maintenance. The best materials combine inherent weather resistance with structural durability.
Leading the list is aluminum, especially powder-coated or cast aluminum. It is naturally rust-resistant and incredibly sturdy. The powder coating provides an extra layer of protection against moisture and fading, making it a top contender for wet climates. It requires minimal upkeep—usually just an occasional wash.
Teak wood is a classic, premium choice. Its high natural oil content makes it exceptionally resistant to water, rot, and insects. Left outdoors, teak gracefully weathers to a beautiful silvery-gray patina. While it can be one of the more expensive options, its lifespan and timeless look justify the investment.
For a low-maintenance and modern solution, synthetic materials are excellent. High-density polyethylene (HDPE) wicker and poly lumber are fantastic innovations. These materials are made from plastics and resins that are completely impervious to water. They won't rot, crack, or splinter, and they resist mold and mildew. They are easy to clean and often come in a wide variety of styles and colors.
Stainless steel, particularly grade 304 or the more marine-grade 316, is another strong candidate. It offers high corrosion resistance, though it's important to ensure the quality of the steel to prevent any potential pitting or rust in very harsh, salty environments.
Ultimately, the best material depends on your budget and desired aesthetic. For a balance of cost, durability, and low maintenance, powder-coated aluminum and synthetic wicker are unbeatable. For a natural, high-end look that ages beautifully, teak remains the gold standard. Avoid materials like untreated iron or simple pine, which will quickly deteriorate when left exposed to constant rain.