Grey Ironbark is the pinnacle of versatile Australian hardwoods, originally highly prized for its immense strength and natural durability
Grey Ironbark
This versatility has seen it expand into a new, limitless range of applications including cladding, flooring, decking and joinery products as well as feature posts and beams.
With a deep patina, the colour palette of the Grey Ironbark varies from a mahogany like appearance to dark shades of chocolate.
The heartwood ranges from pale brown to dark brown with occasional rich, red tones. Its grain is usually tight and straight.
Polishing beautifully, always ensuring a smooth finish, Grey Ironbark is a popular choice for many architects, designers and builders.
The incredible strength and durability of Grey Ironbark has resulted in it becoming the top choice for exterior applications over the years.
Today Grey Ironbark is also recognised for its rich, warm colouring and stunning patina, revealing its adaptability as an internal building material.
Common name
Grey Ironbark
Look & Features
Moderately coarse & even texture, heavy, hard & compact
Botanical Name
Eucalyptus paniculata, Eucalyptus siderophloia
Colour
Light grey or light chocolate with some darker reds and browns sometimes occurring, regional variations
Common uses
Cladding, flooring and decking, joinery, feature posts and beams, framework
Properties
Density (kg/m3)
GD
1250
ADD
1100
Hardness kN (janka)
Green
11
Dry
16.3
Durability Class
1
Strength Group
S1/SD1
Joint Group
J1/JD1
Shrinkage Radial % (approx.)
4.5
Tangential % (approx)
7.5
Structural Grades
Unseasoned
F14/F17/F22
Seasoned
F27/F34+
Toughness (Nm)
Green
High
Dry
High
Early Fire Hazard IndicesIgnitability
Ignitability
Not available
Spread of Flame
Not available
Smoke Development
Not available
Termite Resistant (toAS3660)
Yes
Lyctid Susceptible Sapwood
No
