A: slight natural colour variation possible, calm and reduced appearance of rift/quarter cut, contrasting colour, variation are a valued feature (greyish/blueish/redish). sound knots and dead knots possible, bark pockets and small cracks as well as cracked knots partially allowed, knotholes professionally filled. Joint free gluing, finger-jointed.
Backing C: Fir, no special quality specifications, surface not filled. Finger-jointed.
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