Pine
Of all indigenous trees, pine has, in these days, the most widespread natural growth region. It´s area of growth extends from Spain over the whole of Europe right up to the Polar forest border, continuing eastward crossing Siberia into the northern region of Asia.
However, for the stage area, only Northern pine is employed. With this pine the outer sapwood is sharply separated from the inner heart-wood by its colouring. Depending on the age of the tree and place of growth, the more or less narrow sapwood (width 2-6 cm) is coloured yellowy-white whereas the heart-wood is reddish-yellow.
The annual rings are clearly separated from each other. The noticeable darker late-timber is also, within the annual rings, separated quite sharply and shows, on the length surfaces, prominent strips. The numerously developed resin channels are clearly larger as with spruce or larch and can be recognized at simple sight on a clean cross cut. Pine wood has, when just cut, a pleasant resin-aromatic smell. The wood is tough and yet with elasticity, relatively light in weight and moderatly hard. Stems are up to 20 m knot-free and 1,0 m thick.
Weight sawn timber
(air-seasoned): ≈520 kg/m2
(oven dried): ≈0,42 g/cm2
Compression strength
(air-seasoned): ≈45 N/mm2
Bending strength
(air-seasoned): ≈80 N/mm2
The low load-bearing capacity as well as the content of knots make pine only conditionally employable for stage floors. Pine should only be used in areas of low wear demand (as for example for the orchestra pit/extension) or on storage surfaces. Pine cannot be produced with standing annual rings - loading and heavy use would cause peeling of the wood surface.
Pine
