Hand Book 



longer, but such residue shall not be con- 

 sidered to be of any special stock length, 

 but will represent the balance of the board 

 after the defects as above named have 

 been removed. 



No. 1 Panels must be practically free 

 from defects on both sides and well man- 

 ufactured. 



No. 2 Panels up to 24 inches long will 

 admit any one of the following defects, 

 which may show on both sides: One 

 small sound knot not to exceed ^4-inch 

 in diameter; one small pitch streak; one 

 small pitch pocket, the equivalent of V 8 - 

 inch wide and 1/16 of an inch deep ; slight 

 sap stain, slight defect in manufacture. 

 Panels over 24 inches long will admit two 

 of the above knots or pitch pockets if not 

 grouped. 



Sizes. D AND BETTER, 1 x 3, 1 x 4 

 and 1x6 inches shall be worked to 13/16 

 of an inch by 2%,, 2V 2 , 3^ and 5*4 

 inches. 



1*4 inch Flooring shall be worked to 

 1-1/16 inches thick and l 1 ^ inch Floor- 

 ing shall be worked to 1-5/16 inches thick, 

 the same width and the same matching as 

 1-inch stock. (See cuts on pages 44-62.) 



Lengths. Standard lengths 4 to 20 feet, 

 with not to exceed five per cent of 8-foot 

 or 9-foot lengths in mixed length ship- 

 ments of B and Better, and in addition 

 five per cent of 6-foot or 7-foot in C. D. 

 and No. 1 Common, and in addition five 

 per cent of 4-foot or 5-foot in No. 2 Com- 

 mon; No. 3 Common Flooring 4 to 20 ft. 

 inclusive. 



(The above percentage is allowed in all 

 shipments of mixed lengths, even though 

 the number of feet of each length be spe- 

 cifically stated.) 



Grades. A, B, C, D, No. 1 Common, No. 

 2 Common and No. 3 Sheathing (or No. 8 

 Common Flooring), Flat Grain; and A, B, 

 C, D, and No. 1 Common Edge Grain. 



45. Special. Defects named in Floor- 

 ing are based upon a piece manufactured 

 from 1 x 4 12 feet, and pieces larger or 

 smaller than this will take a greater or' 

 lesser number of defects, proportioned to 

 their size on this basis, except that stand- 

 ard knots shall not exceed IVi-inches in 

 diameter in 3-inch flooring. 



45-A. The amount of crook permissible 

 in No. 1 Common and Better Flooring may 

 be as follows : 



16 feet lengths as a basis for 3-inch 

 widths, 3 V^ -inch crook. 



16 feet lengths as a basis for 4-inch 

 widths, 3-inch crook. 



16 feet lengths as a basis for 6-inch 

 widths, 2 1/2 -inch crook. 



46. "A" FLAT FLOORING must be 

 practically free from defects on the j:ace 

 side and well manufactured. 



47. "B" FLAT FLOORING will ad- 

 mit any two of the following or their 

 equivalent of combined defects: 5 per 

 cent sap stain, 15 per cent firm red heart, 

 three pin knots, one standard knot, three 

 small pitch pockets, one standard pitch 

 pocket, one standard pitch streak, slight 

 torn grain, small seasoning checks. 



48. "C" FLAT FLOORING will ad- 

 mit any two of the following defects or 

 their equivalent of combined defects; 15 

 per cent of sap stain, 25 per cent of firm 

 red heart, two standard pitch streaks; 

 medium torn grain, or other machine de- 

 fects that will lay without waste; slight 

 shake that does not go through, or sea- 

 soning checks that do not show an open- 

 ing through, two standard pitch pockets, 

 six small pitch pockets, two standard 

 knots or six pin knots, twelve pin worm 

 holes. 



49. EDGE GRAIN FLOORING shall 

 take the same inspection as Flat Grain, 

 except as to the angle of the grain. (See 

 Sec. 32.) 



50. HEART FACE EDGE GRAIN 

 shall be free from sap on face side. 



51. "D" FLAT FLOORING will ad- 

 mit the following defects or their equiva- 

 lent of combined defects: Sound knots 

 not over one-half the cross section of the 

 piece in the rough at any one point 

 throughout its length; three pith knots, 

 pitch, pitch pockets, sap stain, firm red 

 heart, seasoning checks that do not show 

 an opening through, shake that does not 

 go through, a limited number of pin worm 

 holes well scattered, loosened or heavy 

 torn grain, or other machine defects that 

 will lay without waste. 



Page Fifty-two 



