3-LAYER – SWISS STONE PINE

Class A (A under EN 13017-1):
Joint-tight surface, straight-grained wood, healthy firmly intergrown small knots, individual small resin pockets, virtually free of compression wood and pith, even colour, individual natural knot plugs and repaired resin pockets permissible, no sapwood (in the case of larch, pine, Swiss stone pine), generally balanced structure and furniture front quality.

Class B (B under EN 13017-1):
Joint-tight surface, strong and pronounced wood pattern, largish knots and resin pockets permissible, increased repairs with natural knot plugs and resin pocket patches possible, compression wood, slight discolorations, pith and sapwood (for pine, larch, Douglas fir and Swiss stone pine) permissible.