When selecting wood for park benches exposed to full sun, durability is paramount. The relentless combination of UV rays, rain, and temperature fluctuations demands a wood species with innate weather resistance. The top contenders are hardwoods known for their density and natural oils.
Teak reigns supreme for its unparalleled longevity. Its high natural oil and rubber content make it incredibly resistant to moisture, rot, and insect damage. It weathers to a elegant silver-gray with minimal maintenance, though its premium cost is a significant factor.
Ipe, often called Brazilian Walnut, is exceptionally dense and hard. It's highly resistant to scratches, decay, and sun damage, often lasting decades. However, its hardness requires pre-drilling for installation, and it can weather to a silver hue unless sealed annually.
Western Red Cedar and Redwood are excellent softwood choices. Both contain natural tannins and oils that deter decay and insects. They are more affordable than tropical hardwoods, work easily, and age gracefully, though they are softer and may show wear more quickly in high-traffic areas.
For maximum durability in full sun, dense, oily hardwoods like teak and ipe are the best investment. For a balance of cost, workability, and good service life, cedar and redwood are outstanding choices. Regular cleaning and the occasional application of a UV-inhibiting sealant can extend the life of any outdoor wood bench.