Graphis of the various typical knots in lumber are shown in the video.
Graphis of the various types of defects in lumber caused by faulty machine centres.
Graphis of the various types of defects naturally found in in lumber.
Graphis of the various types of defects caused by kiln drying.
These pages provide information and graphics on wood characteristics. Lumber knots, natural defects, machine defects, seasoning defects. Other wood characteristics will be added.
