Radiata Pine

Blonde Timber Species

Species Name: Radiata Pine

Botanical name(s): Pinus radiata: Family: Pinaceae.

Size and location information: A medium sized tree attaining a height of 40 to 50 m and a stem diameter of 1 m. Branches are usually large and spreading and pinecones are very conspicuous on the tree. Bark is grey to red-brown in colour, thick, rough, deeply fissured and shed in small flakes.

Radiata pine is native to a very small area of the west coast of North America but is now a major plantation species throughout the world, especially in New Zealand, Chile, South Africa and Australia. In Australia it is grown in all states and the ACT although commercial plantings in Queensland are confined to the southern highlands.

Description: Heartwood pale yellow-brown. Sapwood not clearly distinguishable.

Density: Australia: 545 kg/m3 at 12% moisture content; approximately 1.8 m3 of seasoned sawn timber per tonne. New Zealand: 490 kg/m3; approximately 2 m3/t.

Shrinkage: 3.4% Radial, 5.1% tangential

Durability: In ground: Class 4 Above ground: Class 4

Machining. Machines and turns well but planer blades should be kept sharp to avoid surface ridging. Fixing. Nails may occasionally follow the growth rings. Nailing guns give good results. Gluing. Differential glue absorption can occur between earlywood and latewood but this rarely causes problems.

Finishing. Will readily accept paint, stain and polish.

Engineering. Preservative impregnated poles for pole frame construction, transmission poles and land poles.

Construction. General purpose softwood used as dressed, seasoned timber in general house framing, flooring, lining, joinery, mouldings and laminated beams. Preservative impregnated in sawn or round form in fencing, pergolas, landscaping, retaining walls, playground equipment. Also used in the manufacture of Scrimber.

Decorative. Furniture, outdoor furnishings (preservative impregnated), plywood, joinery, turnery, carving.

Others. Structural plywood, scaffold planks, wood wool, paper products, particleboard, and medium density fibreboard.


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