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Available in Cladding, Lining, Battens & Screens and Decking.

● Cladding: Shiplap T&G
● Lining: Shiplap T&G, V-joint T&G
● Battens & Screens: Pencil round
● Decking: Dressed timber


Ironbark is durability class 1 for both above and in-ground and is resistant to lyctus attack. It is not easily worked because of its high density but can be used as seasoned timber for cladding, internal lining and decking.

Bushfire Resistance


Durability is defined as the resistance of a timber species to decay, or to insect attack. A scale of low to high has been adapted for above ground durability.

4 = low (0-7 years)
3 = Moderate (7-15 years)
2= Reasonably High (15-40 years)
1 = high (More than 40 years)

Ironbark has a durability level of 1

Seasoned Weight

Grey Ironbark

Red Ironbark

There are 6 recognized levels of ratings; from BAL (low), BAL 12.5, BAL 19, BAL 29, and Bal 40 to BAL FZ (highest). The relevant Australian standard AS3959 provides the requirements built in these varied bushfire risk areas.

Bushfire Attack Level for Ironbark:

Red Ironbark (BAL) 12.5, 19 & 29
Grey Ironbark (BAL) 19