Cut across the grain, a matter of course.
A flooringboard is no flooringboard until it is double-end profiled.
Besides applying tongue and groove in the length direction, a smooth surface and perfect fitting are essential for every flooringboard.
Flooringboards can be double-end profiled at fixed lenghts as well as variable lenghts.
Optimalisation of the wood by cutting out bad parts and remove bad ends is achieved by one single adaptation.