UNI: bigger knots and more rustic appearance due to wider width of top layers. Mostly sound knots, occasional small knots, small filled knotholes, occasional with ray possible, no shakes, small resin pockets possible, slight compression wood and slight colour variations might occur, jointfree gluing.
Bottom layer C+: no special quality specification, holes are filled.
Surface: hacked - holes generated by this surface treatment are not filled (visible middle layer).
Panels are glued SWP/2 NS (non structural): solid wood panels for non-structural use in wet areas, with regard to appropriate constructional protection also suitable for exterior use (sheltered areas).
Legend: SML = strip core, BML = board middle layer.
More information concerning fire classification in the accompanying information to CE-marking.