C Select Vertical Grain contains infrequent, very small, sound tight knots. (90% +clear) 75 % of board has vertical grain of 45 or better. Occasional signs of previous use.

D Select Vertical Grain has occasional tight knots and signs of previous life. 65% of width of board face has vertical grain of 45 or better. Infrequent slight surface checking evident.

D Select is the same as D Select Vertical Grain (above) but no restrictions on grain orientation.

#1 Common has sound tight knots and occasional signs of previous life. No restriction on mixture of flat sawn and vertical grain. Slight surface checking evident.