When selecting wood for your outdoor benches, sustainability is key. The most sustainable options are woods that are either rapidly renewable, certified as responsibly harvested, or reclaimed.
For new wood, look for FSC (Forest Stewardship Council) certification. This guarantees the wood comes from forests managed for environmental, social, and economic benefits. FSC-certified teak is a top choice for its natural oils and durability, resisting rot and insects without chemical treatments. Alternatively, consider Accoya wood (modified radiata pine) or thermally modified ash; these processes enhance stability and longevity using heat, not toxic chemicals.
However, the most sustainable source is often reclaimed wood. Giving old barn wood, industrial beams, or salvaged lumber a second life prevents waste and adds unique character. It requires zero new tree harvesting.
Finally, consider ultra-fast-growing species like bamboo (technically a grass) for a modern look. Whichever you choose, ensure it's durable for your climate to maximize its lifespan. Pair your sustainable wood choice with non-toxic, plant-based oils for finishing to complete your eco-friendly outdoor seating solution.