A garden bench has to earn its keep. It sits through drizzle, frost, damp winters and the occasional heatwave, and still needs to look like something you want to sit on when the sun finally appears. Oak and teak are the two woods most people end up weighing up, and they are genuinely different materials — not just two shades of brown. Oak is heavy, British-friendly and full of character. Teak is a tropical hardwood with natural oils that make it unusually relaxed about being left outside. Knowing how each behaves over five, ten and twenty years makes the decision much easier.
Two hardwoods, two very different temperaments
European oak is dense and heavy, with a tight grain and a high tannin content. Those tannins are why oak resists fungal decay — and also why it can stain black if it comes into contact with iron. If you have ever found a dark ring on an oak floor where a metal object sat, you have seen the chemistry at work.
Teak has a different trick entirely. It is naturally rich in oils and extractives that repel water and make the timber largely indifferent to rot and insects. That same oil content makes teak remarkably stable: it barely moves as humidity rises and falls, which is why teak furniture tends to stay flat and true with very little drama.
Think of oak as a sturdy traditionalist that improves with attention. Think of teak as a quiet low-maintenance overachiever that would rather be left alone.
Durability: how each copes with British weather
Both woods are durable, but they fail in different places.
Oak
Well-made oak benches are robust, and the timber can last for decades. The weak points are moisture and movement. Oak swells in wet weather and shrinks as it dries, and after a few seasons you may notice fine surface cracks — known as checking — along the grain. These are usually cosmetic and do nothing to weaken the bench. The real risk is constant contact with wet ground: a leg sitting in soil or on damp grass will rot, however good the timber.
If you buy oak, look for heartwood rather than sapwood, stainless steel fixings, and joinery that keeps the ends of the rails clear of standing water. End grain soaks up moisture like a sponge, so sealed or raised ends last far longer.
Teak
Teak's oil content slows water uptake dramatically, so it is far less prone to cracking, swelling and warping. It also shrugs off insect attack and fungal decay more or less unaided. In a British garden, a teak bench can be left out all year, year after year, with very little attention. That is the honest reason it costs more.
One caveat: the teak you buy matters. Timber from mature, slow-grown trees is denser and oilier than some fast-grown plantation wood. Reputable suppliers will tell you where it came from and hold certification showing it was legally and sustainably harvested. Ask — a good retailer will not mind.
Colour: from golden honey to silver-grey
Neither wood stays the colour you see in a showroom, and that surprises a lot of people.
Oak
Fresh oak is a pale gold, sometimes with a faint pink warmth. Left untreated outdoors it darkens slightly in its first year, then fades steadily towards a soft silver-grey. Expect the change to take roughly a year to eighteen months in full sun and weather, and longer in shade. Sheltered parts stay browner, so a partly covered bench can look two-toned for a while.
If you want to slow that process, an annual oil or a breathable wood protector will help. It will not stop greying forever, but it keeps the surface nourished and makes dirt easier to wipe away.
Teak
New teak is a warm honey-brown. It greys faster than oak — often within a single season — and usually greys very evenly, giving that cool silvery finish you see on outdoor furniture in magazines. Some people love it; some wish they had kept the gold.
Here is the reassuring part: greying is only skin deep. Both woods can be brought back with a light sand and a coat of oil, and neither is harmed by the change.
Maintenance: what each wood actually asks of you
Neither needs much, but they need different things.
- Oak: wash down twice a year with warm water and a little mild soap, using a soft brush. To keep the golden tone, oil once a year in dry weather — thin coats, excess wiped off, never on a damp bench.
- Oak: keep the feet off soil and grass. Paving, stones or rubber feet let water drain away.
- Teak: soapy water is genuinely enough. Oiling is optional and purely cosmetic, but if you oil once, plan to keep oiling, because stopping leaves patchy colour.
- Both: check fixings and joints each spring. Tighten anything loose and replace rusted screws before they stain the wood.
- Both: avoid pressure washers. They raise the grain, strip natural oils and make future weathering less even.
- Both: if the bench sits under trees, clear fallen leaves and sap promptly; trapped damp and organic matter are what shorten a bench's life, not the rain itself.
Cost, longevity and value
Teak usually costs more upfront, often significantly so. Oak is the more affordable hardwood, especially if you buy a solid, simply designed bench rather than a highly carved one. But the comparison is not just about the ticket price.
A teak bench may need nothing beyond an occasional wash for years. An oak bench may need annual oiling and a little more vigilance about damp feet and fixings. Over ten or fifteen years, some of the price gap narrows when you factor in time, oil and the risk of replacing a neglected oak leg. Over thirty years, both can still be going strong if they were well made and sensibly sited.
The best-value bench is rarely the cheapest one. It is the one that matches the amount of care you will realistically give it.
Which wood suits your garden?
Choose oak if you want a traditional British look, enjoy the ritual of a yearly oil, and can give the bench a reasonably sheltered spot or at least keep its feet dry. Oak suits cottage gardens, walled gardens, gravel paths and anywhere you want the furniture to feel part of the landscape rather than placed on top of it.
Choose teak if you want to leave the bench out all year, dislike maintenance, or live in a damp, exposed or coastal area. Teak is also the easier choice if the bench will sit on a lawn or patio with little shelter, because it is less bothered by constant moisture. Its even silvering looks particularly good against modern paving, rendered walls and lush green planting.
Location matters more than many buyers expect. A bench in full sun and driving rain will weather faster than one under a pergola or against a south-facing wall. A north-facing corner stays damp longer, which is harder on oak and still not ideal for teak. If you can, raise either bench on feet or slabs and allow air to move underneath.
Buying checklist for oak or teak
- Check the wood: ask whether oak is heartwood and whether teak is certified and responsibly sourced.
- Check the fixings: stainless steel or galvanised fittings last far longer than mild steel, especially near oak tannins.
- Check the joinery: mortise-and-tenon joints, dowels or proper metal brackets should feel tight, not wobbly.
- Check the feet: look for raised feet, plastic glides or a design that keeps end grain off wet ground.
- Check the finish: untreated wood is fine, but a factory-applied oil or protector can give you a head start.
- Check the comfort: a beautiful bench that is too low, too deep or too narrow will not get used. Sit on it if you can.
Final thoughts
Oak and teak are both excellent choices for a British garden, but they reward different owners. Oak gives you weight, character and a classic look, provided you protect it from standing water and refresh it now and then. Teak gives you stability, natural oil and remarkable tolerance of wet weather, provided you buy good-quality, responsibly sourced timber. If you want a bench to age gracefully with a little hands-on care, choose oak. If you want a bench to be left alone and still look elegant after a decade of British seasons, choose teak. Either way, buy well, site it sensibly, and it will earn its keep many times over.
Photo: Matheus Bertelli / Pexels