When selecting wood for an outdoor bench, durability against weather elements is paramount. The champion of outdoor woods is undoubtedly teak. Teak's natural oils and rubber content make it incredibly resistant to moisture, rot, and insect damage. It can last for decades with minimal care, gracefully aging to a beautiful silvery-gray patina.
A close contender is Western Red Cedar. This wood contains natural tannins that act as preservatives, giving it solid resistance to decay and insects. While slightly less dense than teak, it is lighter and often more affordable, offering excellent longevity for garden benches.
For maximum hardness, look to Ipe (pronounced ee-pay), a tropical hardwood. Ipe is so dense it resists scratches, mold, and even fire. Its exceptional strength means an Ipe bench will last a lifetime, though it can be challenging to work with and requires pre-drilling for screws.
A practical and cost-effective option is high-quality, pressure-treated pine. The treatment process forces preservatives deep into the wood, providing robust protection against rot and insects. Modern treatments are safer and allow for a clean, paintable finish, making it a versatile and durable choice for many homeowners.
Ultimately, the most durable wood balances longevity, maintenance, and budget. Teak and Ipe lead in raw durability, while Cedar and pressure-treated pine offer outstanding performance for their value, ensuring your outdoor bench remains a welcoming retreat for years to come.