444 SELLING LUMBER 



unsound or loose knots, knots in groups, decay, or other de- 

 fects that will materially impair its strength. 



Standard Size. 



2. "Rough timber sawed to standard size" means that 

 they shall not be over %-inch scant from the actual size speci- 

 fied. For instance, a 12xl2-inch timber shall measure* not less 

 than 1124x1124 inches. 



Standard Dressing. 



3. "Standard Dressing" means that not more than ^-inch 

 shall be allowed for dressing each surface. For instance, a 

 12xl2-inch timber, after being dressed on four sides, shall meas- 

 ure not less than 11^x11 1/2 inches. 



STANDARD HEART GRADE, DENSE PINE. 

 Stringers. 



4. Stringers shall show not less than 85 per cent heart 

 on the girth anywhere in the length of the piece ; provided, 

 however, that if the maximum amount of sap is shown on either 

 narrow face of the stringer, the average depth of sap shall not 

 exceed one-half inch. Knots greater than 1 ^2-inch in diameter 

 will not be permitted at any section within 4 inches of the edge 

 of the piece, but knots shall in no case exceed 4 inches in their 

 largest diameter. 



Caps and Sills. 



5. Caps and sills shall show not less than 85 per cent 

 heart on each of the four sides, measured across the sides any- 

 where in the length of the piece, and shall be free from knots 

 over 2y 2 inches in diameter. 



Posts. 



6. Posts shall show not less than 75 per cent heart on 

 each of the four sides, measured across the sides anywhere in 

 the length of the piece, and shall be free from knots over 2*/2 

 inches in diameter. 



Longitudinal Struts and Girts. 



7. Longitudinal Struts and Girts shall be square cornered 

 and sound. One side shall show all heart; the other side shall 

 show not less than 85 per cent heart, measured across the side 

 anywhere in the length of the piece, and shall be free from any 



