Wood is – pun perhaps intended – a natural choice for outdoor settings. Certain extra-hardy varieties withstand weather and regular wear, whether stained with a preservative finish or left free to develop a rustic patina. Acacia, red and white cedar, pine, and shorea wood are hard, long-lasting choices at a value price, while teak, though higer priced, is unmatched in its lifetime durability and resistance to rot, insects, and water. Eucalyptus is also naturally dense and decay- and water-reistant – plus, it's a renewable resource. Remember to keep untreated wood out of direct sunlight and heavy rain, and clean any kind of wood furniture, painted or not, regularly with a damp cloth.