We hope the links below will assist you in choosing the right timber for your needs. Note: Adobe Acrobat required.
Click here to download adobe acrobat.
If you have any further questions, please don’t hesitate to ask our expert staff.
Hazard Class Definitions (please mouse-over for info)
H1 APPROVED
USAGE : INSIDE, ABOVE GROUND
CONDITIONS : Completely protected from the weather and well ventilated.
BIOLOGICAL HAZARD : Lyctid borers
EXAMPLES : Susceptible framing, flooring, furniture and interior joinery.
H2 APPROVED
USAGE : INSIDE, ABOVE GROUND
CONDITIONS : Protected from wetting
BIOLOGICAL HAZARD : Borers including termites.
EXAMPLES : Framing, Flooring and similar, used in dry situations.
H3 APPROVED
USAGE : OUTSIDE, ABOVE GROUND
CONDITIONS : Subject to periodic moderate wetting.
BIOLOGICAL HAZARD : Moderate decay fungi, borers and termites.
EXAMPLES : Weatherboard, fascia, pergoals(above ground), window joinery, framing, dacking and laminated verandah posts
H4 APPROVED
USAGE : OUTSIDE, IN-GROUND
CONDITIONS : Subject to sever wetting
BIOLOGICAL HAZARD : Severe decay fungi, borers and termites.
EXAMPLES : Fence posts, garden walls less than 1m high, greenhouses, posts and landscaping timbers.
H5 APPROVED
USAGE : OUTSIDE, IN-GROUND OR IN FRESH WATER
CONDITIONS : Subject to extreme wetting and/or where the critical use requires a higher degree of protection.
BIOLOGICAL HAZARD : Very severe decay fungi, borers and termites.
EXAMPLES : Retaining walls, piling, house stumps, building poles and cooling tower fill.
H6 APPROVED
USAGE : MARINE WATERS
CONDITIONS : Subject to prolonged immersion in sea water.
BIOLOGICAL HAZARD : Marine wood borers and decay fungi.
EXAMPLES : Boat hulls, marine piles, jetty cross-bracing, landing steps and similar.
The Osmose Life wood Treatment Process
(Double-click on the green light for a demonstration)
Have you ever wondered about the true environmental impact of timber?
Below is a table summarizing the energy consumed in the production of timber and its three largest competitors. Apart from the fact that Australian Treated Pine sources all its timber from Sustain ably managed pine plantations, when you purchase a piece of treated pine, you are buying a piece of timber that has artificially extended durability, that has to be good for the environment! That’s why we say that “timber preservation is conservation??? It stands to reason that if you buy a piece of timber that has a life expectancy longer than that of any of the native Australian species, you will be ultimately using less timber in the long term.
The table below clearly shows that timber consumes less than 35,000% (yes that’s not a misprint!) of the energy used to manufacture the equivalent volume of steel, (lets not even mention Aluminium). You will also note the difference in the carbon footprint (carbon released) and note that timber is the only product available that stores carbon subsequent to manufacture. If you are at all concerned for the environment, your choice should be obvious.
Energy Used in Production (comparison)