448 



SELLING LUMBER 



6. A standard knot is sound and not over \y 2 inches in 

 diameter. (See page 449). 



7. A large knot is one any size over \y 2 inches in diame- 

 ter. (See page 450). 



8. A round knot is oval or circular in form. 



PIN KNOT. 



9. A spike knot is one sawn in a lengthwise direction. (See 

 page 451). 



The mean or average diameter of knots shall be consid- 

 ered in applying and construing these rules. 



