Timber Species - Grey Ironbark

Grey Ironbark (Eucalyptus paniculata)

Ironbark produces a stunning array of timber hues from pale brown to dark chocolate brown as well as dark red. The grain is usually interlocked, with a moderately coarse texture.


Physical Properties

Dry Density: 1090 kg/m³

Janka Dry Hardness: 14 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

Grey Ironbark
Eucalyptus drepanophylla, E.
paniculata, E. siderophloia,
E. decepta
Brown

Janka (Hardness) Rating - Dry

14

Natural Durability Class
In-ground contact
Outside above ground contact


1
1

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


1210
1090

Strength Group
Unseasoned (Green)
Seasoned (Dry)


S1
SD1

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
unknown

Tangential Shrinkage %

7.5

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



24
27

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

R

Naturally Lyctus Susceptible
S = Susceptible
NS = Non susceptible

NS


>Click here to view the species photo gallery



Grey Ironbark