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Best Types of Wood for Fencing

The most common type of timber used for paling fences is treated pine. Usually spanning thirty plus years, many older fences that currently are being replaced are O/B hardwood palings and rails with redgum posts, and unfortunately these old forest timbers simply do not exist any more. Subsequently pine is the new replacement and is used frequently through-out the timber industry. Paling fences consist of treated pine palings, rails and plinth. Posts are usually mixed hardwood, cypress pine or treated pine. All fixings used must be galvanised. Hardwood Depending on the class/durabilty, Hardwood can be used for the different parts of the fence but most common is fence posts only. Mainly northern NSW or southern Queensland produce the better mixed varieties such as Spotted gum, Ironbark, Sydney blue gum, Tallow, white mahogany and Blood wood. All hardwood fencing is still available, however low grade hardwood is used and is not recommended as the timber is immature and is more likely to suffer from surface checking (splitting) as the timber is not as dense. Treated/Untreated Pine The most used timber in a paling fence is treated wet rough sawn pine. Treated pine palings, rails and plinth are mass produced in Australia for the fencing industry. Palings range from 1.5m through to 2.4m high, and 100mm and 150mm wide. Rails and plinth are usually 5.4m long. Kiln dried pine is used extensively throughout the building industry and also can be treated for outside use in decks, fences and pergolas. Cheap, sustainable, fast growing and carbon neutral pine is ideal for many building applications. Cypress Pine White Queensland Cypress Pine is a common substitute for hardwood or treated pine. Golden in appearance with a beautiful grain it is used mainly for fence posts. Naturally termite resistant, durable and structural (up to F7) it is ideal for all fencing including feature and picket fencing. It also has decay and insect repellant properties from the oil it produces. Cypress, as one of the best types of wood for fencing can be used in both ornamental and structural portions of the fence. It is more economical to use cypress for your fencing, as it is durable, structural and used widely in the industry and forested responsibly in Australia. Pressure-Treated Wood Pressured-treated pine is also considered among the best types of wood for fencing. Outdoor treated timber is usually classified in hazard levels and the majority is either (H3) for outside use above ground or (H4) for outside use in ground. Pressure-treated wood is mostly chemically treated to protect it from decay and pests, preserving the strength of the wood. It generally has a green hue that will eventually change over the years into gray color.Ā Used predominately for palings, rails and plinth it will outlast majority of other timber because of its treatment. The most common treatment is CCA (Copper, Chrome and arsenic) to deter rotting.
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