AB: Virtually only sound knots, small knot holes are professionally filled, occasional pith ray and resin pockets possible, no shakes, the ageing process affects the entire depth of the top layer and this colour similar to reclaimed wood will not fade away like a surface stain, slight compression wood and colour variation possible, joint free gluing
Bottom layer standard: Spruce aged: closed jointing, no blue-stain.
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.