Flooded Gum (Eucalyptus grandis)
Rose Gum (Eucalyptus grandis)

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Common Name(s): Rose Gum, Flooded Gum

Scientific Name: Eucalyptus grandis

Distribution: Eastern Australia; also grown on plantations worldwide

Tree Size: 100-165 ft (30-50 m) tall, 4-7 ft (1.2-2 m) trunk diameter

Average Dried Weight: 40 lbs/ft3 (640 kg/m3)

Specific Gravity (Basic, 12% MC): .48, .64

Janka Hardness: 1,260 lbf (5,600 N)

Modulus of Rupture: 15,640 lbf/in2 (107.8 MPa)

Elastic Modulus: 2,052,000 lbf/in2 (14.15 GPa)

Crushing Strength: 8,020 lbf/in2 (55.3 MPa)

Shrinkage: Radial: 5.9%, Tangential: 10.1%, Volumetric: 15.5%, T/R Ratio: 1.7

Color/Appearance: Heartwood color ranges from pink to reddish brown. Paler sapwood is sometimes indistinct from heartwood.

Grain/Texture: Usually straight-grained or shallowly interlocked, with a uniform medium to coarse texture.

Endgrain: Diffuse-porous; exclusively solitary; large to very large pores in no specific arrangement, few to very few; tyloses present; parenchyma vasicentric, confluent; narrow rays, spacing fairly close.

Rot Resistance: Rated as durable to very durable; poor insect resistance.

Workability: Fairly easy to work with both hand and machine tools, though Rose Gum experiences a large amount of shrinkage when drying, and a relatively large amount of movement in service. Glues, stains, and finishes well.

Odor: No characteristic odor.

Allergies/Toxicity: Besides the standard health risks associated with any type of wood dust, no further health reactions have been associated with Rose Gum, though several other species within the Eucalyptus genus have been reported to cause various allergic reactions. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.

Pricing/Availability: Occasionally exported to North America. Available in good sizes and lengths in board form. Prices are moderate for an imported hardwood.

Sustainability: This wood species is not listed in the CITES Appendices or on the IUCN Red List of Threatened Species.

Common Uses: Flooring, millwork, furniture, and boatbuilding.

Comments: Rose Gum is a common plantation species, though a hybrid species marketed as Lyptus® is grown in Brazil: Rose Gum is bred with an Indonesian species (Eucalyptus urophylla) to help increase disease and insect resistance.

Related Species:

Related Articles:

None available.

Scans/Pictures: A special thanks to Per Stangegaard for providing the wood sample of this wood species.

Flooded Gum (Eucalyptus grandis)
Rose Gum (sanded)
Flooded Gum (sealed)
Rose Gum (sealed)
Flooded Gum (endgrain)
Rose Gum (endgrain)
Flooded Gum (endgrain 10x)
Rose Gum (endgrain 10x)
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Ryan welsh

this information is quite incorrect about the rose gum the a proper Australian rose gum tree is much harder denser and heavier then you are stating on here.l I know this for a fact.Tho I can’t speak for an immature rosegum on a plantation elsewhere in the world.

Alex

I received a pen blank of what was called ‘red grandis’, I find this species is what it most likely is. Can anyone confirm?

Christopher

Yes, that is 100% Eucalyptus Grandis from Urufor´s plantations in Uruguay

Christopher

Red Grandis is tested for durability at the TRADA Institute in the UK, and at the FCBA in France and it is categorized as Class 3, which equals to 30 years without treatment or finish on a vertical (windows, doors, siding, exterior trim, etc…). Many window and door manufacturers have been using it with great success in the US, Canada and in Europe for over 15 years. Durable, stable, green and good savings too

Jane

Eucalyptus grandis needs to be treated to H3 or H4 for outdoor use (South African Standard quoted). Poles are creosoted or treated with CCA in South Africa. See https://Www.sawpa.co.za for more details.

bren

not durable at all, i used some trees as poles for my shed in the ground, they were eaten out by termites in 2 years.
strictly an internal timber for furniture etc i reckon..

Rafael

With not treatment at all?

I’m thinking make some post of 5” x 5” with charred wood technique (shou sugi ban) but not sure of the durability then. (also painting the underground base for prevent water damage)