When selecting wood for an outdoor bench, the choice between hardwood and softwood is fundamental. It's not about actual hardness but plant biology: hardwoods come from deciduous trees, softwoods from conifers. For outdoor use, this distinction impacts durability, maintenance, and cost.
Hardwoods like teak, ipe, and white oak are naturally dense and rich in oils, making them exceptionally resistant to rot, insects, and weathering. A teak bench can last decades with minimal care, often just aging to a elegant silver-gray. The trade-off is higher cost and weight.
Softwoods like cedar, redwood, and pressure-treated pine are lighter and more affordable. Cedar and redwood contain natural preservatives, offering good decay resistance. Pressure-treated pine is chemically infused to resist rot and insects, making it a popular budget choice. However, most softwoods require more frequent sealing or staining to maintain their appearance and longevity.
Your choice hinges on priorities. Choose hardwood for maximum lifespan and minimal upkeep where budget allows. Opt for softwood for cost-effectiveness and easier handling, accepting that it will require more regular protective maintenance to endure the elements beautifully.