Jarrah is native to south western Australia, it is a heartwood with a rich dark brownish red colour. It can have straight or interlocked grain with an even medium coarse texture. One of the world's most durable timbers. A hard and very durable timber with rich reddish-brown color tones, typical uses include heavy construction, general joinery,  boatbuilding and other marine applications. The warm colors and high density make for excellent T&G flooring. Gum veins are common and give natural character.

A large tree producing a light to dark red timber darkening to a uniform red-brown mahogany color. It can have a straight or interlocked grain with an even medium coarse texture.

We do not recommend acrylic coating with Jarrah. Water based coating can change the color from rich redish-brown to a dark orange; a solvent may change the color from natural rich reddish-brown to light reddish/orangy- brown. We only recommend an oil stain, that keeps the natural deep reddish-brown color of Jarrah.

Endgrain: Diffuse-porous; large pores arranged in diagnal rows, few; exclusively solitary; growth rings indistinct; narrow rays not visible without lens, spacing normal. 

Rot Resistance: Jarrah is rated as very durable regarding decay resistance, and it is also quite resistant to insect attack. 

Workability: Jarrah tends to be difficult to machine on account of its high density and interlocked grain. Jarrah also has a moderate blunting effect on cutting edges. Jarrah turns, glues, and finishes well. 

Common uses: Flooring, heavy construction, veneer, cabinetry, outdoor furniture, and turned objects. 



Botanical Name: Eucalyptus Marginata
Origin: Australia
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Certifications Available::
Seasoning: Seasons readily by air or kiln drying although there can be some warping due to sloping grain and some care is required to prevent checking in wide boards. Pre-air-drying is recommended.
Working Qualities: It machines, nails and glues well; takes an excellent polish and holds paint very well. It is also prized as a carving timber.
Uses: One of the world’s most durable timbers and highly resistant to fire, termite and marine borer attack and impervious to acids. Jarrah has a very wide range of uses, previously regarded as a heavy construction timber for bridges and wharves it is now favoured for interior finishing, joinery, cabinet-making and flooring.
Price (1-10): 6


Availability: Available ex-stock in sizes from 100x25 to 300x50mm
Stocked: Yes
Grade Description: Select
Availability http://www.ntp.net.au/docs/permissible_characteristics.pdf
Grade Rules http://timspec.co.nz/filescust/event/Jarrah%20Grade%20rules.pdf


Primary Suppliers: Gunns Western Australia
Resource Certification: ISO 14001


Durability Above Ground: Very Durable


Density Air Dry: 820 kg/m3


Shrinkage Radial: More than 5% %
Shrinkage Tangental: More than 8% %


Stability Kiln Dry: Stable
Stability Green: Prone to shrinkage and distortion

Mechanical Properties

Janka Hardness: 10 kN
Modulus of Rupture: 112 MPa
Modulus of Elasticity: 13 GPa
Max Crush Strength: 61 MPa


NZAS lgnitability: 13
NZAS Flame Spread: 3
NZAS Heat Evolved: 4
NZAS Smoke Developed: 2
ASTM Flame Spread: 42

Phone our sales team on (09) 620-0260 or Email us anytime, we'd be happy to help.