Which Wood Is Best for Outdoor Furniture?

Teak is the best wood for outdoor furniture because its high natural oil content resists water, insects and rot for decades with almost no maintenance. Where budget matters more, acacia and eucalyptus offer good durability at a lower cost, and pressure treated softwood remains the most economical option for larger structures. Cedar sits between the two, light in weight and naturally resistant, though softer and easier to mark.

The right answer depends on where the furniture will sit and how much upkeep you are prepared to do. A sheltered courtyard in Devon and an exposed roof terrace in Manchester place very different demands on timber. Below is what separates the common options in practice rather than in theory.

Teak: The Benchmark

Teak earns its reputation through chemistry. The timber contains natural oils and silica that repel moisture and deter insects without any treatment. Left alone outdoors, teak weathers from honey brown to a soft silver grey while remaining structurally sound. Well made teak furniture routinely lasts twenty five years and often considerably longer.

Grade matters enormously. Grade A teak comes from the mature heartwood of the tree and carries the highest oil content. Grade B and C come from outer sections and sapwood, which have less oil and fewer of the properties that make teak worth buying. Two pieces described simply as teak can differ substantially in lifespan.

The obvious drawback is cost. Teak is the most expensive mainstream option by some margin, and it is heavy, which matters if you rearrange furniture often or need to move it for winter storage.

Acacia: Strong Value

Acacia has become one of the most widely used outdoor timbers, and for good reason. It is dense, hard and naturally resistant to water, with a warm grain that takes oil well. A cared for acacia set will typically serve well for a decade or more.

It does need attention that teak does not. Acacia responds to prolonged wet by swelling and to prolonged dry heat by shrinking, so it can develop surface cracks if left uncovered through repeated wet and dry cycles. An annual oiling and a cover through the worst of the winter make a real difference. Our modern outdoor garden dining tables UK range includes acacia designs suited to typical British conditions.

Eucalyptus: Fast Growing and Capable

Eucalyptus offers similar performance to acacia with slightly better dimensional stability. It is denser than many softwoods, resists rot reasonably well and grows quickly, which keeps costs sensible and makes it a more sustainable choice than slow growing tropical hardwoods.

Untreated eucalyptus fades to grey within a season or two. Oil it annually if you want to keep the original colour. Structurally it is dependable, and it holds screws and joints better than softwood, which shows in furniture that stays rigid over the years.

Cedar: Light and Naturally Resistant

Western red cedar contains natural preservatives called thujaplicins that give it genuine rot resistance without treatment. It is also remarkably light, which makes it useful for furniture that moves around, and it is dimensionally stable so it rarely warps.

The trade off is softness. Cedar dents and scratches easily, so it is better suited to seating and structures than to dining tables where plates and glasses are dragged across the surface. Expect fifteen to twenty years outdoors if it is kept off wet ground.

Pressure Treated Softwood: The Practical Choice

Pine and spruce treated under pressure with preservatives make up the majority of budget garden furniture and almost all decking and fencing. The treatment forces protective chemicals deep into the timber rather than coating the surface, which gives genuine protection against rot and insects.

Softwood is the cheapest way to furnish a garden and the easiest to replace. It also needs the most maintenance: annual treatment with a preservative or stain, and vigilance about ground contact. Cut ends expose untreated wood, so any modifications need sealing. Expect around ten to fifteen years with reasonable care.

For benches and larger garden structures this is often the sensible option, and our outdoor garden benches UK sale range covers both treated softwood and hardwood designs.

Iroko and Balau: The Hardwood Alternatives

Iroko is sometimes described as an alternative to teak. It is dense, oily and highly durable, with a coarser grain and a slightly darker tone. Balau, also sold as Bangkirai, is extremely hard and heavy, used widely for decking and heavy duty seating.

Both perform well in wet British conditions. Both are also heavy enough that assembly is a two person job. Their appearance is less refined than teak, which is partly why they cost less.

Woods to Avoid Outdoors

Untreated pine, plywood and MDF have no place in a garden. Plywood delaminates once water reaches the glue lines, and MDF swells irreversibly. Oak is durable but tannin rich, so it stains stone and leaves black marks where it meets steel fixings unless stainless steel is used throughout.

Anything described only as hardwood without a species named deserves scrutiny. The term covers timbers with wildly different durability, and the vagueness is rarely accidental.

Matching Timber to Your Garden

Exposure is the deciding factor. A coastal or open site with driving rain and salt air punishes timber far harder than a walled town garden. On exposed sites, choose teak or a dense hardwood and accept the higher cost, because cheaper timber will not last.

Under a covered pergola or a canopy, the calculation changes and acacia or eucalyptus will perform close to hardwood. Shade brings its own issue: timber that never dries out grows algae, so pieces in permanent shade need better airflow underneath, ideally raised slightly off the paving. If your seating spends most of the year under cover, our outdoor garden canopies and gazebos UK sale range extends its life considerably.

Maintenance in Plain Terms

Every outdoor timber benefits from the same basic routine. Wash it once in spring with warm soapy water and a soft brush, working along the grain. Rinse and let it dry fully. That alone removes the algae and dirt that hold moisture against the surface.

Oil only if you want to preserve the original colour. Oiling does not extend the structural life of teak or acacia. It is cosmetic. Use a dedicated hardwood oil rather than linseed, which encourages mould growth outdoors.

Store or cover furniture through winter where possible, and if it stays out, raise the feet clear of standing water. Water sitting under a leg is what rots furniture, not rain falling on it.

Cost Against Lifespan

Judged over time, teak is often the cheaper option despite the higher purchase price. A twenty five year teak set outlasts two or three softwood replacements. If you plan to stay in the same home for a long time and the garden is a space you use properly, the maths favours hardwood.

If you are renting, expecting to move, or furnishing a garden that is still evolving, a treated softwood or acacia set makes better sense. Buy for the situation you are actually in rather than the one you hope to be in later, and browse our modern outdoor garden seating sets UK range for options across both categories. The rest of our home collections are available at Furniture in Fashion.

Reading the Construction, Not Just the Species

Species is only half the story. A well made piece in a moderately durable timber will outlast a poorly made piece in a premium one, because outdoor furniture almost always fails at the joints rather than in the middle of a plank.

Look for mortise and tenon joints or through bolted frames rather than butt joints held with screws into end grain. End grain holds fixings poorly and absorbs moisture faster than any other surface, so screws driven into it work loose within a couple of seasons.

Check the fixings themselves. Stainless steel is the only sensible choice outdoors. Plated or galvanised screws will eventually corrode, and the rust stains bleed into the surrounding timber, leaving black marks that no amount of sanding removes.

Finally, look at how the feet are finished. Sealed or capped feet keep water out of the end grain at the point where it collects most, which is the single most common starting point for rot in an otherwise sound piece.

Frequently Asked Questions

Does teak really need no maintenance?

Structurally, no. It will survive outdoors untreated for decades. Cosmetically, it needs an annual clean and an occasional oiling if you want to keep the golden colour rather than let it weather to grey.

Is acacia as good as teak?

Not quite. Acacia is durable and good value but has lower oil content, so it needs annual care and typically lasts around half as long as good quality teak in the same conditions.

Why does my outdoor wood furniture turn grey?

Ultraviolet light breaks down lignin in the surface fibres, which produces a silver grey patina. It is purely cosmetic and does not weaken the timber. A hardwood cleaner and oil will restore the original tone if you prefer it.

Should I bring wooden garden furniture indoors for winter?

It helps but is rarely essential for hardwood. The more important step is keeping the feet out of standing water and allowing air to circulate. A breathable cover is better than a sealed plastic one, which traps condensation.

What is the most sustainable choice for outdoor furniture?

Look for FSC certification regardless of species, since responsible forestry matters more than the timber itself. Among the options, fast growing eucalyptus and acacia generally carry a lower environmental cost than slow growing tropical hardwoods.