Naturally durable wood species and those treated with preservatives offer exceptional protection against decay, insect infestation, and the damaging effects of moisture. Examples include naturally decay-resistant species like cedar, redwood, and teak, as well as pressure-treated lumber infused with chemical preservatives.
Using materials with inherent or enhanced resistance to environmental degradation is critical for the longevity and structural integrity of outdoor projects. Historically, builders relied on the natural durability of specific wood types for applications exposed to the elements. Modern preservative treatments expand these options, enabling the use of less naturally durable but often more readily available and affordable wood species for outdoor construction. This contributes to sustainable practices by reducing reliance on slow-growing, naturally durable woods.