How can wood be treated for outdoor use to ensure its durability and longevity?

Wood can be treated for outdoor use by applying a protective finish, such as a sealant or stain, that helps prevent moisture absorption and UV damage. Additionally, pressure-treated wood can be used, which involves treating the wood with chemicals to resist decay and insect damage. Regular maintenance, such as reapplying finishes and keeping the wood clean, can also help prolong its durability and longevity outdoors.