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EPD: Sawn timber from spruce and pine, 459 kg/m3, 10-18% moisture content (Rubner Holding AG - S.p.A.)
RUBNER sawn timber is produced from fresh roundwood, whereby the wood species spruce and pine are processed in accordance with EN 1912 (Picea abies and Pinus sylvestris). The roundwood for the production of RUBNER sawnwood originates from a predominantly regional supply network, the average delivery distance of the roundwood is around 80 km. Depending on the processing level, RUBNER sawn timber is available as fresh, dried, dried/pre-planed or dried/planed/(visually) machine-graded lath, board or plank sawn timber. In the manufacturing process, prismatic timber pieces are cut from the logs in a first processing step, whereby the dimensions produced are essentially in conformity with the specifications according to DIN 4074-1. The individual pieces, RUBNER sawn timber, always have a fibre direction parallel to the longitudinal axis. Subsequently, kiln drying takes place, optionally in drying chambers or drying channels. The kiln-dried RUBNER sawn timber is then forwarded for further processing in the form of planing or pre-planing/grading. In the course of timber grading, the pre-planed sawn timber is classified according to visual and mechanical strength and stiffness properties.
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