Timber Species - Spotted Gum

Spotted Gum (Eucalyptus maculata)

The word "spotted" refers to the soft mottled colour caused by weathering of the outer tree as it sheds elliptical strips of bark. This colour varies from pale greybrowns and soft creams to a rich chocolate brown. A very tough timber, its frequent wavy grain can produce an attractive and highly valued fiddleback effect.


Physical Properties

Dry Density: 950 kg/m³

Janka Dry Hardness: 11 kN

The Janka rating is the hardness level given to each species. The higher the number, the greater the hardness.

The natural colour variation within a timber species is normal and one of its most appealing attributes. The species samples shown here are indicative only and do not necessarily show the colour variation that can be naturally found in each species. It is recommended that large samples of the species be viewed in a timber flooring showroom when deciding on the species for a new timber floor.


Properties

Species Name
Botanical Name



Colour Range

Spotted Gum
Eucalyptus maculata, Syn:
Corymbia maculata, C. citriodora, Syn: E. citriodora, C. henryi,
Syn: E henryi
Brown

Janka (Hardness) Rating - Dry

11

Natural Durability Class
In-ground contact
Outside above ground contact


2
1

Density (kg/m3)
Unseasoned (Green)
Seasoned (Dry)


1150
990

Strength Group
Unseasoned (Green)
Seasoned (Dry)


S2
SD2

Joint Group
Unseasoned (Green)
Seasoned (Dry)


J1
JD1

Fire Indices
Spread-of-Flame Index
Smoke-Developed Index
Critical Radiant Flux
Smoke Development Rate
Group Number
Naturally bushfire-resisting Timber


3
3
>2.2 and <4.5
<750
3
Yes

Tangential Shrinkage %

6.1

Toughness (Nm)
Naturally Unseasoned
(Green)
Seasoned (Dried)



20
24

Naturally Termite Resistant
to AS3660
R = Resistant
NR = Non resistant

R

Naturally Lyctus Susceptible
S = Susceptible
NS = Non susceptible

S


>Click here to view the species photo gallery



Spotted Gum