Choosing the right wood for an outdoor bench that bakes in the sun all day is crucial for longevity and beauty. The champion for durability is undoubtedly Teak. Its high natural oil and rubber content make it incredibly resistant to rot, insects, and the punishing effects of sun and rain. It weathers to a elegant silver-gray with minimal maintenance, though it comes at a premium price.
A close contender is Ipe (Brazilian Walnut). This incredibly dense hardwood is so resilient it's often compared to steel. It's naturally resistant to decay, scratches, and sun damage, lasting decades. However, its hardness makes it difficult to work with, and it can fade to a silvery-brown.
For excellent balance, consider Western Red Cedar. Its natural oils provide good rot and insect resistance, and it handles sun exposure well, stabilizing to a rustic gray. It's lighter, easier to work with, and more affordable than tropical hardwoods. Redwood offers similar benefits, with natural tannins that protect it from the elements, making it another superb, though often costly, choice.
For a budget-friendly and durable option, High-Quality Pressure-Treated Pine is a practical candidate. Modern treatments force preservatives deep into the wood, granting it decades of resistance to rot and insects. It requires sealing or painting for optimal performance against sun-induced weathering and can be prone to warping if not properly maintained.
Ultimately, for a truly "set it and forget it" bench in full sun, Teak is the gold standard. For extreme hardness, choose Ipe. For the best value with good natural durability, Cedar is an outstanding choice. No matter your selection, proper sealing and occasional cleaning will significantly extend the life and beauty of your sunny outdoor retreat.