Douglas FIR brushed | lye treatment | white oil

Douglas Fir plank in 3-layer construction with a small bevel on long side and approx. 5 mm top layer, with approx. 5 mm backing in the same wood and a conifer middle layer.
Tongue and groove on all sides for easy installation. Typical are few bony, well-embedded knots up to 60 mm diameter and pronounced formation of the annual rings.
Isolated knotholes, splints and cracks are possible and are closed with appropriate wood putty.
Impressive boards with a subtle appearance interspersed with a clear surface structure.