Dura Pine
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DURA PINE (Radiata Pine or Pinus Radiata)


Dura Pine timber is produced from the Radiata Pine tree. Radiata Pine, also know as Monterrey Pine, is classed as a medium-density softwood. Radiata Pine is a versatile timber and widely used in the USA, Australia and New Zealand for the full range of structural and decorative applications including framing, lining, glue laminated beams, veneer and plywood. When appropriately treated, it can be used for many exposed structural and non-structural applications.

Radiata Pine plays a significant role in meeting the ever-increasing demand for sawn timber. As a well-managed plantation tree, it can provide a renewable resource providing dependable supply for generations to come due to the fact that Radiata Pine is one of the world's most widely planted plantation species and has the ability to grow to a large diameter faster than almost any other tree species

The timber is low in density and fairly soft, often with very wide annual growth rings.

We may suply:

SYP (Southern Yellow Pine) from the USA; solid sawn timber (no finger jointing) S4S (4 sides planed) which is “CA-C” treated. CA stands for Copper Azole. The C indicates the 3rd variation (the 1st was A, etc). This product comes in various dimensions mainly suitable for structural beams (no. 2 Framing grade) and for decking (Premium grade). This is certainly a very suitable option but the timber will contain knots, some wane, however it does not affect the strength. The Pine that we use is FSC certified.

Finger jointed/laminated radiata pine columns & beams from New Zealand. This is an engineered product specifically designed for load bearing application. This product can either be clear or with white or dark primer suitable for immediate use. The treatment is “LOSP” (= Light Organic Solvent Preservative) and similar to CA-C. This timber is FSC certified (FSC number SW-COC-001657).

Both Pine products come with a 20 year (limited) warranty against rot and termites.


The heartwood is light brown to yellow; the sapwood white to pale yellow but often indistinct. The grain is usually straight, but knots are common and growth rings are prominent.


In-ground contact: Class 4.

Outside above ground: Class 4.

Termite resistance of heartwood: Not resistant.

Refer to AS 5604-2005 Timber - Natural durability ratings.

In-ground performance of untreated Radiata Pine is poor.

The above is the main reason that we do not advise the use of this wood species for structural uses when it comes in contact with soil, unless properly treated (see the paragraph about Dura Pine  below). 


Radiata Pine can be used for both exterior and interior applications. For interior uses it is kiln dried and for exterior uses it is treated with preservatives, in some occasions kiln dried as well. Main use: Flooring and decking boards, siding boards, cabinets, fencing, exterior cladding, window sashes, pergolas, landscaping, shingles 

What is Dura Pine exactly..,,.

Dura Pine © is a brand name of treated Radiata Pine wood and has been developed to ensure structural performance. Its performance characteristics provide the framework for achieving an excellent quality of finish. Dura Pine has greater strength and stability due to its special treatment, is more uniform in size, and reduces warping, twisting and cupping. Dura Pine can be painted or stained immediately, without waiting for the lumber to dry, unlike standard treated wood that is still wet from treatment.

Treatment options

EPA (Environmenal Protection Agency)
This can be any approved pesticide containing inorganic arsenic to protect the wood from termite attacks and decay. 
LOSP (Light Organic Solvent Preservative) technology can be used to extend the service of today's construction timbers by recreating nature's defence mechanism against decay and insect attack. LOSP products are clear or tinted solvent based preservatives in which white spirits acts as the carrier, ensuring rapid and effective penetration of the active ingredients into the sapwood.
Key advantages of LOSP:
Dry treatment - allows low moisture content of timber
No arsenic content
Available as clear treatment
CCA (Copper, Chrome and Arsenic)
CCA is suitable for all timber end uses and is accepted in most parts of the world. The combination of three active elements provides long term protection against woos boring insects, fungi and marine organisms. It is particularly suited to in-ground applications such as fence posts and columns in contact with soil, as well as above ground applications including trusses, beams, joists, decking, flooring and sidings.     
Key advantages of CCS:
Versatile treatment
Cost effective


Original color of Dura Pine   Stained Dura Pine for veranda   Stained Dura Pine exterior siding

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Last modified: August 19, 2013
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