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SHRINKING THROUGH DRYING

timber1The usual shrinking of European softwoods is approx. 1 mm per inch. This percentage represents the difference between entirely fresh wood and absolutely dry wood. This difference depends on:

  • where the tree grew (higher areas mean less shrinking);
  • the age of the tree before being felled;
  • the season and weather of the felling and cutting; and
  • the type of storage.

Example: If you order the 23 mm x 100 mm x 4 m dimensions, we produce exactly this measure. After loading the wood (in the summer ), the wood begins to shrink. When reaching warmer regions, the dimensions of the wood are a mere approx. 22.5 mm x 98 mm x 4 m. After the final drying, the dimension will be an average of 22 mm x 96 mm x 4 m.

CUTTING TOLERANCE

The cutting tolerance is approx. +/- 1 mm, depending on the type of production. When producing on a circular saw, the tolerance is smaller than with a band saw or the gatter. In the winter, the tolerance can also be greater. In addition, in some countries greater dimension tolerance has become custom in order to achieve a better price.