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Find out more about Grey Gum
The botanical name for Grey Gum is Eucalyptus propinqua. Grey Gum is extremely hard and durable hardwood timber with an in-ground life expectancy in excess of 25 years. In Queensland it grows along the east coast to Maryborough and inland to the Carnarvon Ranges and Blackdown Tablelands.
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What does Grey Gum look like?
Grey Gum's heartwood is a red to reddish-brown colour, visually distinct from the paler sapwood. The grain is often interlocked, with a coarse but even texture.
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What is Grey Gum used for?
Common applications for Grey Gum include:
- Framing
- Engineering works - piles, railway sleepers, cross-arms and mining timbers
- Flooring
- Decking
- Landscaping
- Boat building
- Wharfs & bridges
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Where can I purchase Grey Gum?
Grey Gum is readily available at all Queensland Timber Merchant Network members. Search for your local supplier via the Accredited Queensland Timber Merchant postcode search tool.
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Where can I find more information about the use and application of Grey Gum?
For more detailed information than the Grey Gum property table below, visit WoodSolutions or download 'Construction timbers in Queensland' which describes the properties of timbers used in the construction of Class 1 to Class 10 buildings (e.g. houses, carports, garages, greenhouses and sheds) in Queensland, as well as other purposes such as furniture, landscaping and outdoor structures (e.g. playgrounds, fences).
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What are the properties of Grey Gum?
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Termite resistance
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Termite resistant
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Shrinkage
This is the measure of the percentage reduction from the unseasoned to 12% moisture content condition.
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7%
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Density
Mass divided by volume, expressed in kg/m3 when describing timber
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Very high density
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Toughness
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Medium toughness
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Bushfire resistance
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Not bushfire resistant
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Strength
The strength of Australian timber is described in terms of "stress grades". Stress Grading is a way of classifying timber, either visually or by mechanical means to indicate the basic properties to be used for structural design purposes. The stress grade is designated in a form such as "F17", which indicates the relative bending capacity of timber.
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F17 to F27
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