Development of visual and mechanical sorting tools for the enhancement of structural sawn timber

Development of visual and mechanical sorting tools for the enhancement of structural sawn timber


Structural sawn timber intended for construction must offer similar guarantees to those offered by other materials and products intended for the structural construction sector. For this purpose, it is necessary to develop classification tools that allow manufacturers and marketers to certify the strength and stiffness values of all the wood that is placed on the market (adjusted to the species and origin that corresponds).
It is, in addition to being a legal obligation, a tool for the valuation of wood that is enabling a competitive improvement of its industrial network.

Technological development of structural sawn timber not only enables it to be directly promoted in the construction sector as a construction element, but also to be incorporated into the manufacture of technological products with high added value, such as glued laminated timber, duos, trios, CLT, prefabricated panels... These are high value-added products that require high levels of competitiveness that cannot be achieved without their main raw material, structural sawn timber, increasing its competitiveness, optimising its manufacturing times and its declared mechanical properties

Visual classification tools have been developed for the main commercial wood species found in Spanish forest stands, such as Pinus sylvestris, Pinus insigne, Pinus nigra, Pinus pinaster, Abies alba, Pseudotsuga menziesii, Quercus rubra, Castanea sativa and Eucalyptus globulus. Tools that in many cases enable the possibility of classifying structural sawn timber into three structural qualities, which allows the different qualities of wood that the timber industry places on the construction market to be classified and valued.
Mechanical classification systems are currently being developed for the main species of the Pinus genus. This is one more step in the competitive improvement of this type of wood, as it improves the classification times and the classifying performance in the different mechanical qualities.
Both developments have enhanced the value of the wood of the different wood species characterized, and have promoted its use in construction.

Type de bois
Origine du bois
Potentiel de mobilisation
300,000 m3
Type de bois concerné
Pinus sylvestris, Pinus nigra, Pinus radiata, Pinus pinaster, Pseudotsuga menziessii, Larix sp, Quercus rubra, Abies alba
Potentiel de durabilité
Very positive
Impact sur l'environnement et la biodiversité

Positive, it mobilizes wood with a proper forest management

Facilité d'implémentation
Very easy
Impact économique
Structural timber value increases in 10€/m3 approximately
Effet sur l'emploi
Positive through better competitiveness
Effet sur le revenu
Positive, more quality timber is mobilized
Connaissances spécifiques requises
Knowledge about Phisical-mechanical properties of wood. Harmonized rules needed
Prérequis clés

Experience on manufacturing and classification of structural timber

Domaine principal
Industries basées sur la forêt, bioéconomie, économie circulaire
Industrie du bois de construction
Solution digitale
Pays d'origine
Echelle d'application
Début et fin d'année
2011 -
Informations de contact
Propriétaire ou auteur
References and Resources
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