Pin 



fects that will not prevent its use as a 

 whole for cheap sheathing, or which will 

 cut 75 per cent of lumber as sound as No. 

 2 Common. 



No. 4 COMMON BOARDS 



81. No. 4 COMMON BOARDS shall 

 include all pieces that fall below the grade 

 of No. 3 Common, excluding such pieces 

 as will not be held in place by nailing, 

 after wasting one-fourth the length of the 

 piece by cutting into two or three pieces; 

 mill inspection to be final. 



FENCING 

 3, 4, 5 AND 6 INCHES WIDE 



Sizes. 1-inch S. 1 S. or 2 S. to 13/16 ; 

 114-inch S. 1 S. or 2 S. to 1-1/16; iy 2 -inch 

 S. 1 S. or 2 S. to 1-5/16 inches. These 

 thicknesses also apply when S. 4 S. 



When 4 and 6-inch Fencing is S. 2 S. 

 & C. M., the finished thickness shall be 

 3,4-inch and inspected under Flooring 

 rules. 



Widths . On stock widths of 3, 4, 5 and 

 6-inch No. 1 Common, no piece shall be 

 counted as standard width that is more 

 than 1,4-inch scant in width. Pieces nar- 

 rower than this should be measured as 

 the next lower standard width and not re- 

 duced in grade. 



Grades: No. 1, No. 2, No. 8 and No. 4 

 Common. 



No. 1 FENCING 



82. No. 1 FENCING shall admit of 

 the following defects or their equivalent; 

 sound knots, the mean or average diame- 

 ter of any one knot shall not be more 

 than 2 inches in five and six inch stock, 

 nor more than li/ inches in three and 

 four inch stock ; three pith knots, wane i/ 2 

 inch deep on edge, not exceeding 1 inch 

 wide one-third the length of the piece; 

 torn grain, pitch, pitch pockets, sap stain, 

 seasoning checks, slight shake, firm red 

 heart, and a limited number of small 

 worm holes well scattered, and the equiv- 

 alent of one split not to exceed in length 

 the width of the piece. 



No. 2 FENCING 



Size. 1-inch S. 1 S. or 2 S. to 13/16- 

 inch. 



Widths. In 3, 4, 5 and 6-inch No. 2 

 Common stock no piece shall be counted 



as standard width that is more than 1/3- 

 inch scant in width. Such pieces should 

 be measured as the next lower standard 

 width and not reduced in grade. 



83. No. 2 FENCING in addition to 

 the defects allowed in No. 1 Common will 

 admit the following defects or their equiv- 

 alent: knots, not necessarily sound, the 

 mean or average diameter of any one 

 knot shall not be more than one-half the 

 cross section if located on the edge, and 

 shall not be more than two-thirds of the 

 cross section if located away from the 

 edge; one split one-fourth the length of 

 the piece; worm holes through rotten 

 streaks, 1/2 inch wide, one-fourth the 

 length of the piece, or the equivalent of 

 unsound red heart; shake or wane, but 

 must not cut to waste. 



A knot hole, li/s inches in diameter or 

 its equivalent in small hollow knots will 

 be allowed provided the piece is other- 

 wise as good as No. 1 Common. 



84. Miscut 1-inch Common Fencing 

 which does not fall below %-inch in 

 thickness shall be admitted in No. 2 Com- 

 mon, provided the grade of such thin 

 stock is otherwise as good as No. 1 Com- 

 mon. 



No. 3 FENCING 



85. No. 3 FENCING is defective lum- 

 ber and will admit of coarse knots, knot 

 holes, very wormy pieces, red rot and 

 other defects that will not prevent its use 

 as a whole for cheap sheathing, or which 

 will cut 75 per cent of lumber as sound 

 as No. 2 Common. 



No. 4 FENCING 



86. No. 4 FENCING shall include all 

 pieces that fall below the grade of No. 3 

 Common, excluding such pieces as will 

 not be held in place by nailing, after wast- 

 ing one-fourth the length of the piece by 

 cutting into two or three pieces; mill in- 

 spection to be final. 



DIMENSION AND HEAVY JOIST 

 Sizes. Dimension shall be worked to 

 the following: 2x4 S. 1 S. and 1 E. to 

 1% x 3% inches; 2 x 6 S. 1 S. and 

 1 E. to l%x55/ 8 inches ; 2x8 S. 1 S. and 1 

 E. to l%x7i/ 2 inches ; 2x10 S. 1 S. and 1 

 E. to l%x9i/2 inches; 2x12 S. 1 S. and 1 

 E. to l%xlli/2 inches. Dimension S. 4 S. 



Page Fifty-seven 



