Davids Timber supplies durability class 1 and class 2 hardwoods which are sourced from New South Wales and Queensland.
Class 1 & 2 Durable
Hardwood are commonly used in;
CCA Treatment of Hardwoods
We can also CCA/ACQ treat Durable
Hardwood from a Hazard Level 3 to Hazard Level 6 which further improves the longevity of this product.
Sizes Available in Durable Hardwood
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50
mm |
75
mm |
100
mm |
125
mm |
150
mm |
200
mm |
250
mm |
300
mm |
25
mm |

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50 mm |

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75 mm |

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100
mm |

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125
mm |

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150
mm |

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200
mm |

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Special orders are available upon request, please
submit your enquiry here; Special
Orders.
Treatment Levels Available
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H1 |
H2 |
H3 |
H4 |
H5 |
H6 |
CCA |
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ACQ |
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Durability Ratings Classes In-Ground
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Class 1 |
Class 2 |
Class 3 |
Class 4 |
Iron Bark |

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Spotted Gum |
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Blue Gum |
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Yellow Stringy Bark |
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Blackbutt |
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Durability Ratings Classes Above-Ground
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Class 1 |
Class 2 |
Class 3 |
Class 4 |
Iron Bark |

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Spotted Gum |

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Blue Gum |
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Yellow Stringy Bark |
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Blackbutt |
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Durability Specifications
Class |
Specification |
1 |
The highest natural durability, which is able to resist both decay and termite attack for at least 25-50 years in-ground. |
2 |
High natural durability, which may be expected to have a life of about 15 to 25 years in-ground. |
3 |
Moderate durability, which may be expected to have a life of about 8-15 years in the ground. |
4 |
Low durability, which may be expected to have a life of 1-8 years in the ground. |
Downloads
Durable Hardwoods
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Working
with Timber
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