Species

Ash

Pale, strong hardwood with excellent shock resistance — the traditional choice for tool handles, furniture frames and anything that has to take punishment.

680 kg/m³ density
Class 5 durability
1.7 T/R ratio

Handling & safety. No major sensitiser concerns beyond ordinary wood dust. Standard extraction practice is enough.

Suitable uses

Furniture, tool handles, joinery, sports equipment, stair parts, interior framing.

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Properties

Latin name Fraxinus excelsior
Species type Hardwood
Origin UK and European forests; ash dieback is tightening UK supply.
Density 680 kg/m³
Janka hardness 6,580 N
Modulus of rupture 103.6 MPa
Elastic modulus 12.31 GPa
Crushing strength 51 MPa
Specific gravity 0.68
Porosity Ring-porous
Movement class Medium
Tangential shrinkage 9.6%
Radial shrinkage 5.7%
Volumetric shrinkage 15.3%
T/R ratio 1.7
Durability (EN 350) Class 5
Relative cost Mid

Density and mechanical properties are typical values at around 12% moisture content. Shrinkage figures represent total dimensional change from fibre saturation to oven dry. Individual boards vary.

Ash is the hardwood that does the jobs oak is overkill for. It’s pale, straight-grained and genuinely tough — the traditional timber for tool handles and anything else that has to absorb a knock without snapping.

That shock resistance is what ash does better than almost anything else in the trade. Axe handles, hammer shafts and sports equipment have been ash for centuries because the wood flexes and recovers where a more brittle timber would fail.

For furniture, ash is the practical choice when you want a light-toned hardwood with an oak-like grain. A good deal of modern furniture that looks like pale oak is ash.

European or American?

Worth knowing before you buy, because they’re different timbers in practice.

European ash has been under real pressure from ash dieback, which has affected supply across the continent and made availability inconsistent. American ash has generally been the more dependable buy.

If you’re quoting a job that needs a consistent run of timber, this is worth asking about rather than assuming.

The one thing that catches people out: finishing

Ash is ring-porous — its earlywood vessels are large and open. That’s why you can see and feel the grain so clearly, and it’s also why ash steam-bends so well, because those open cells compress.

But those open pores take stain differently from the surrounding wood. Go straight at it with a stain and the pores soak up far more than the wood around them — stripy, exaggerated grain that no amount of sanding afterwards will fix.

The answer is a sanding sealer or grain filler first. Do that and ash stains evenly and predictably.

Left natural and simply oiled, ash is one of the easiest hardwoods to finish well. It’s the stained-and-lacquered work that needs the extra step.

Where ash doesn’t belong

Outside. Ash has no natural durability and it will rot.

Keep it indoors or under cover, and don’t specify it for anything in ground contact. That’s not a shortcoming specific to ash — plenty of hardwoods share it — but it’s worth saying plainly, because “hardwood” is often taken to mean “durable”, and with ash it doesn’t.

Working the timber

One of the nicest timbers to work: tough, shock-resistant, and clean on machines and hand tools alike. Steam-bends beautifully, which is why chairmakers and tool makers have always used it. Wide sapwood is normal and is the pale colour most people expect.

Finishing & gluing

Takes finishes evenly and stains well for its open grain; oil finishes bring out a honey tone. Not a natural exterior timber — indoors it needs no special treatment.

Glues reliably with standard PVA. Its coarse, open pores take adhesive well and joints in ash are typically strong and dependable.

Stuck on something?

Ask Shane

I don’t sell timber, but I’ll help you work out what you actually need and where to find it.

Ask Shane