Build with timbers summary

Step 1: Select aocation
Step 2: Select a building member
Step 3: Select a timber
Timber fact sheet

Location details

Brisbane City

Above-ground:
In-ground:

Building member details

Joists (e.g. house sub-floor)

Environment:
Target design life (years):

Properties for [blackwood]

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Standard trade name blackwood
Botanical name Acacia melanoxylon
Synonyms NA
Origin Queensland-north,
Queensland-central,
Queensland-south,
Australia
Schedule Schedule B
Hardwood Yes
Density (kg/m3) 640
Durability above-ground (3)
Durability in-ground 3
Hardness F
Joint dry (JD) JD3
Joint green (JG) J3
Strength dry (SD) (SD4)
Strength green (SG) (S3)
Bushfire resisting No
Lyctine susceptibility (SL)
Termite resistance NR
Advisory codes

Target design life, hazard zones and conditions for use

Botanical name Acacia melanoxylon
5 years above-ground Approved
15 years protected Approved
15 years Above-ground:A Approved
15 years Above-ground:B Approved
15 years Above-ground:C Approved
15 years Above-ground:D Approved
15 years In-ground:A C5
15 years In-ground:B C5
15 years In-ground:C C5
15 years In-ground:D C5
Botanical name Acacia melanoxylon
50 years protected Approved
50 years Above-ground:A Approved
50 years Above-ground:B H3!
50 years Above-ground:C H3!
50 years Above-ground:D H3!
50 years In-ground:A H5!
50 years In-ground:B C8
50 years In-ground:C C9
50 years In-ground:D C9