Build with timbers summary

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

Location details

Lockhart River Aboriginal Shire

Above-ground:
In-ground:

Building member details

Step, stair risers and treads, fully supported

Environment:
Target design life (years):

Properties for [surian]

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Standard trade name surian
Botanical name Toona calantas
Synonyms NA
Origin Asia-Pacific,
Central America
Schedule Schedule C
Hardwood Yes
Density (kg/m3) 480
Durability above-ground (1)
Durability in-ground (2)
Hardness VS
Joint dry (JD) JD4
Joint green (JG) J5
Strength dry (SD) (SD8)
Strength green (SG) (S7)
Bushfire resisting No
Lyctine susceptibility (SL)
Termite resistance NR
Advisory codes

Target design life, hazard zones and conditions for use

Botanical name Toona calantas
5 years above-ground Approved
15 years protected C16
15 years Above-ground:A C16
15 years Above-ground:B C16
15 years Above-ground:C C16
15 years Above-ground:D C16
15 years In-ground:A Approved
15 years In-ground:B C2
15 years In-ground:C C3
15 years In-ground:D C4
Botanical name Toona calantas
50 years protected C16
50 years Above-ground:A C16
50 years Above-ground:B C16
50 years Above-ground:C C16
50 years Above-ground:D C16
50 years In-ground:A C3
50 years In-ground:B C7
50 years In-ground:C C8
50 years In-ground:D C8