A method of cutting lumber where the annual growth rings of the log are between 45 – 90 degrees to the face of the board. Also called straight-grained, quarter-sawn lumber tends to be more dimensionally stable and slightly harder than plain-sawn or flat-sawn lumber.
The annual growth rings form an angle of 45 degrees to 90 degrees with the surface of the piece. In Quarter Sawn strips the medullary rays or pith rays in ring porous woods are exposed as flecks which are reflective and produce a distinctive grain pattern.
In commercial practice lumber cut with rings (see either and end of board) at angle of 45° to straight up 90°...i.e., parallel or almost parallel with medullary ray. In Oak it produces spotted figure; in Mahogany a ribbon-stripe. Advantages in Quarter-Sawing: Shrinks, twists, cusps, and splits less.