Red Ironbark.

The strength and durability of this Australian hardwood has seen it used throughout the ages as a preferred structural timber. It is also ideal for hardwearing areas such as flooring and decking. However, aside from its density, it is also quite stunning when polished with it’s deep rich, dark red to red-brown colouring making it a beautiful wood to feature in cabinetry, benchtops and furniture.

Red Ironbark or Mugga Ironbark as it is also known is a very strong Australian hardwood that grows readily in north central Victoria, on the inland slopes of New South Wales and in some coastal districts of Victoria, New South Wales and Queensland. Its strength, long-term durability and resistance to rotting has seen it used as “the” preferred structural timber throughout the last few centuries. Many wharfs, piers, bridges and railways were built using Red Ironbark.

Today Red Ironbark is used for all manner of building construction materials from poles to posts and beams and its ideal for hardwearing areas such as flooring and decking.  Whilst being quite hard to work with due to its density and hardness it also polishes to a high sheen and as such is frequently used for furniture, benchtops, bars and even in boat-building.

The heartwood is a deep rich dark red to red-brown in colour. The sapwood by contrast is a pale yellow. The timber’s texture is fine with an interlocked grain.

COMMON NAME

Red Ironbark

Look & Features

Highly durable with a medium and even texture

Botanical Name

Eucalyptus sideroxylon, Eucalyptus
creba, Eucalyptus fibrosa

Colour

The heartwood colour is deep red. Sapwood is very distinctive, being pale yellow in colour

Common Uses

A wide range of external applications including heavy engineering, marine structures, poles, sleepers, framework, flooring and decking

PROPERTIES

Density (kg/m3)

GD

1200

ADD

1100

Hardness kN (janka)

Green

N/A

Dry

11.9

Durability Class

1

Strength Group

S2/SD3

Joint Group

J1/JD1

Shrinkage

Radial % (approx.)

3.5

Tangential % (approx)

7

Structural Grades

Unseasoned

F11/F14/F17

Seasoned

F22/F27

Toughness (Nm)

Green

High

Dry

Medium High

Early Fire Hazard Indices

Ignitability

Not available

Spread of Flame

Not available

Smoke Development

Not available

Termite Resistant (toAS3660)

Yes

Lyctid Susceptible Sapwood

Yes

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