Grade Superior White.
This grade is analogous to Select grade.
The boards of this grade shall be white with no false heartwood.
Sorting is performed by the better face. So, if one face is clean (select) and white, and the back face has some defects (#1 Common) but is also white, then such board is recognized as WSB Superior White grade.
The front face shall be at least 90% white. The back face shall be at least 75% white.
Minimum clear wood cutting: 75mmx 2100mm or 100mmх 1500mm.
Limited presence of live point knots (up to 5-7 knots, up to mm) on a clear cutting shall not be classified as a defect.
Any wane on the front and back faces is not allowed.
The board thickness is 22 mm (-0/+1 mm). The both faces are planed to finish (S2S). The edges are rough after sawing. This board can also be supplied unplaned by individual customer’s request.
The board widths are from 89 mm and wider (with optional pace, i.e. the boards are of various widths). The widths from 89 mm to 100 mm shall not exceed 5% of the total batch volume.
The lengths are from 1830mm and longer with any pace. The ends are straight and even. The boards with lengths from 1830 mm to 2135 mm shall not exceed 10% of the batch.
The boards are stacked into three types of packs according to the following lengths:
Front face Back face