The visual appearance of wood is graded on the basis of the presence, size and distribution of the singularities of the wood on the various faces.
Natural alterations by fungi and insects are also taken into account.
Standards
The wood is graded according to European visual appearance grading standard NF EN 1611-1
Six choices
USES
Parquet – Panelling – Mouldings – Joinery Maritime pine is one of the only species to provide sawn timber without knots on all 4 faces.