SELLING LUMBER 423 



59. "A" CEILING must be practically free from defects 

 on the face side and well manufactured. 



60. "B" CEILING will admit of any two of the following 

 defects or their equivalent of combined defects : Slight torn 

 grain, three pin knots, one standard knot, three small pitch 

 pockets, one standard pitch pocket, one small pitch streak, 

 small seasoning checks, 15 per cent sap stain, 15 per cent firm 

 red heart, six pin worm holes. 



61. No. 1 COMMON CEILING will admit the follow- 

 ing defects or their equivalent of combined defects : Sound 

 knots not over one-half the cross-section of piece in the rough ; 

 sap stain, pitch, pitch pockets, firm red heart, slight shake, 

 heavy torn grain, seasoning checks that do not show an open- 

 ing through ; defects in manufacture that will lay without 

 waste, a limited number of pin worm holes well scattered. 



Pieces otherwise as good as "B" Ceiling may have one de- 

 fect (like a knot hole) that cafti be cut out by wasting \y 2 inches 

 of the length of the piece, provided both pieces are 16 inches 

 or over in length after cutting out such defects. 



62. No. 2 COMMON CEILING, admits of all pieces not 

 as good as No. 1 Common that can be used without waste 

 of more than one-fourth the length of any one piece. (See 

 Sec. 26). 



WAGON BOTTOMS. 



Sizes. Wagon Bottoms, unless, otherwise ordered (see 

 Sec. 29), shall be made in sets of 38 and 42 inches face, and 

 from stock 4 inches or over in width. Standard thickness shall 

 be 13/16 of an inch. 



Grades : A and B. 



63. WAGON BOTTOMS, unless otherwise ordered (see 

 Sec. 29), shall be graded the same as "A" and "B" Flat Flooring. 



DROP SIDING. 



Sizes. D and M (dressed and matched), shall be worked 

 to 2^x3^4 and 5^4 inches face, 3^ and Sy 2 inches over all. 

 Worked Shiplap to ^4x3-inch face, Zy 2 inches over all, ^x5- 

 inch face, 5^ inches over all. 



Patterns that are not shown in Southern Pine Association 

 Moulding Book of 1916 Edition are considered special. 



