Choosing the right wood for an outdoor bench is crucial for longevity and beauty. Two top contenders are Western Red Cedar and Coastal Redwood. Both are excellent, but key differences will guide your decision.
Western Red Cedar is renowned for its straight grain, moderate strength, and exceptional dimensional stability. It resists warping and cupping remarkably well. Its natural oils act as preservatives, giving it good decay and insect resistance. Cedar has a distinct aromatic scent and ranges in color from amber to reddish-brown, weathering to a elegant silvery-gray. It is generally more affordable and widely available than redwood, making it a popular, cost-effective choice for outdoor projects.
Coastal Redwood is famed for its superior natural durability and strength. It contains tannins and extractives that provide outstanding resistance to rot, decay, and insects—often rated as "Class 1" durability. Redwood is typically denser and stronger than cedar, offering great structural integrity. Its color is a deep, rich red-brown, aging to a soft, weathered gray. The primary drawback is cost and availability; high-quality, heartwood redwood is more expensive and can be harder to source sustainably.
For maintenance, both woods benefit from a sealant or UV-inhibiting finish to preserve color and prolong life, though redwood's natural durability might allow for slightly longer intervals between treatments. If budget is a primary concern and you desire a classic look with good stability, Cedar is an outstanding choice. If you seek the utmost in natural durability for a bench that will last decades with minimal concern, and budget is secondary, Redwood is the premium option. Ultimately, you cannot go wrong with either; both will create a beautiful, natural focal point for your outdoor space.