WOOD SPECIES & GRADES: OAK, ASH, LARCH

Select, Classic, Natural

Select grade is carefully selected, more evenly coloured, and almost
knotless. The grade allows the filling of pin knots, the natural reflective
pattern of oak, i.e., the pattern created by the medullary rays of the
tree, and the colour variation caused by the grain pattern.
Classic/Natural is a natural-looking grade in which the natural grain
pattern and colour variation of the wood are clearly visible. The natural knottiness of wood with a few small knots is allowed within the
Classic grade. The Classic grade also allows small knot groups, the
so-called cat paws, as well as the filling of knots and the natural reflective pattern of oak, i.e., the pattern created by the medullary rays
of the tree. NOTE! The surface treatment might affect to the tone and
outlook of the putty area.

Vintage & Olive

The Vintage grade contains filled cracks and healthy black knots
of various sizes. The number of knots, filled knots, and filled cracks
varies. Black fillings are part of a genuine vintage look./ The Olive
grade has been named after the dark heartwood, which is also called
“olive”. The variation in appearance between different boards may
be significant, and some of the boards may be without the dark heartwood. Knots, knot groups and filling of knots are also allowed for this
grade.