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Red Iron Bark
The Red Ironbark group of hardwoods provides excellent engineering timber, renowned for outstanding durability in weather-exposed applications. Red Ironbark also has superior weathering properties and is less prone to surface checking than many other timbers used in outdoor applications such as decking. They are referred to as 'royal' species. In Australia, other sectors of the timber industry consider them among the most valuable of hardwoods because of their outstanding properties. Wood appearance: Red Ironbark is red-brown to dark red, with paler-coloured sapwood. It is very fine textured and extremely hard-wearing. Fire ratings: Red Ironbark timber components 18 mm thick or greater and do not require fire retardant treatment for use in construction in bush-fire prone areas. Wood properties: Density = 1090 kg/m3 Hardness (Janka value) = 14kN In-ground durability = 1 (very durable) Above ground durability = 1 (very durable)
Natural Durability These classes give an approximate rating for the expected life of untreated and unfinished timbers. The following table is a guide to approximate usable life expectancy: Class In-ground expectancy Above-ground expectancy 1 >25 years >40 years 2 15-25 years 15-40 years 3 5-15 years 7-15 years 4 0-5 years 0-7 years Conservation Ironbark, in South Africa, has been declared an invader. Not only will you be purchasing one of the hardiest and most beautiful timbers available, but you will be contributing to conservation in Southern Africa by consuming timber from trees which pose risk to our country due primarily to their massive water consumption.