Radially cut or quarter-sawn wood is expensive because only a few pieces can be obtained from each log. T refers to a tangential cut. It shows the ends of the rays. Annual rings appear as irregular bands of light and dark streaks or patches. This is the most common cut.
Knots are the bases of lost branches which have been covered in time by new annual rings.
Lumbering and Milling Wood must be seasoned or dried in the open air, in kilns , or with fans. It is then cut and shaped. Wood is tested for its response to tension, shear, cleavage, compression, and cross breaking. Veneer is thinly sliced wood used for decorative layers. Veneer may be shaved off a revolving log.