If you’ve ever sat down on a metal bench in the middle of July, you know the pain. That instant, searing heat can make your outdoor space feel unusable. So what’s the best material for an outdoor bench that won’t get scorching hot in the summer? The short answer is natural wood, specifically cedar, teak, or redwood.
These woods have a low thermal conductivity, meaning they don’t absorb and radiate heat like metal or dark-colored plastic. Cedar, for example, stays cool to the touch even under direct sunlight because its porous structure allows air to circulate. Teak is another excellent choice—it contains natural oils that resist heat absorption and also protect against moisture and rot. Redwood shares similar properties and offers a beautiful aesthetic.
If you prefer a more modern look, consider high-density polyethylene (HDPE) lumber. This recycled material mimics the look of wood but is engineered to resist heat. It stays cooler than metal and doesn’t warp like untreated wood. However, avoid dark colors; light or neutral tones reflect more sunlight and remain cooler.
What about metal? Aluminum is actually the best metal option because it reflects heat better than steel or iron. But even aluminum can get warm in extreme sun, so place it under a shade structure or add cushions.
Pro tip: For any material, a simple shade solution—like an umbrella, a tree canopy, or a pergola—can dramatically reduce surface temperature. So if you want a bench that stays comfortable all summer, go with natural wood (cedar, teak, or redwood) or a light-colored HDPE composite. Your backside will thank you.