-inch less in thickness and width than 

 .1 S, 1 E. shall be standard, but no ob- 

 jection shall be made to stock finished to 

 the standard size for S. & E. 



HEAVY JOISTS shall be worked to 

 the following: 2x14, 2i/ 2 and 3x10, 3x12 

 and 3x14, S. 1 S. and IE., green, 1,4-inch 

 off side and ^-mch off edge; S. 4 S. 1/4- 

 inch off each face surfaced. Heavy Joists, 

 rough, green, must not be over i/4-inch 

 scant in width or thickness. 



Dry 2x14 shall be dressed to the stand- 

 ard thickness of 2x12. 



Lengths. Standard lengths are multi- 

 ples of two feet, 4 to 24 feet, inclusive, 

 but lengths shorter than 10 feet shall not 

 be included in miscellaneous or mixed 

 length shipments, except by agreement. 



Grades: No. 1, No. 2 and No. 3 Common. 



87. Inspection of Dimension is a ques- 

 tion of strength and uniformity of size, 

 and whatever reduces its strength in 

 cross-section must be considered a defect 

 to that extent. In computing the area of 

 cross-section occupied by defects the size 

 of the piece in the rough must be con- 

 sidered. 



88. No. 1 COMMON DIMENSION 

 AND HEAVY JOISTS will admit sound 

 knots, none of which in 2 x 4s should be 

 larger than two inches in diameter on one 

 or both sides of the piece, and on wider 

 stock which do not occupy more than one- 

 third of the cross section at any point 

 throughout its length, if located at the edge 

 of the piece, or more than one-half of the 

 cross section if located away from the 

 edge ; pith knots, or smaller defective knots 

 which do not weaken the piece more than 

 the knot aforesaid ; will admit of seasoning 

 checks, firm red heart, heart shakes that 

 do not go through ; wane % of an inch deep 

 on edge, one-fourth the width and one- 

 third the length of the piece; pith, sap 

 stain, pitch pockets, splits in ends not 

 exceeding in length the width of the piece, 

 a limited number of small worm holes well 

 scattered ; may contain crook of 1^2 inch in 

 2 x 4 16 feet and Vs inch less in each 

 additional 2 inches in width up to and in- 

 cluding 2 x 12 16 feet. Lengths longer or 

 shorter than 16 feet of No. 1 Common 

 Dimension may contain crook in propor- 

 tion to the above, and such other defects as 



do not prevent its use as substantial 

 structural material. 



89. No. 2 COMMON DIMENSION 

 may contain crook of 2 inches in 2 x 4 16 

 feet and V 8 inch less in each additional 2 

 inches in width up to and including 2 x 12 

 16 feet. Lengths longer or shorter than 

 16 feet may contain crook in proportion 

 to the above, and may have knots not 

 necessarily sound, which do not occupy 

 more than one-half of the cross section at 

 any one point if located at the edge of the 

 piece nor more than two-thirds of the cross 

 section if located away from the edge; 

 smaller, loose, hollow or rotten knots that 

 do not weaken the piece more than the 

 knots aforesaid ; will admit rotten streaks, 

 shake, wane, worm holes, split not to 

 exceed one quarter the length of the piece, 

 and other defects which do not prevent its 

 use without waste. 



90. Miscut 2-inch Common stock which 

 does not fall below li/ 2 inches in thick- 

 ness, or i/ 8 -inch scant in width, from 

 standard size shall be admitted in No. 2 

 Common, provided such pieces are in all 

 other respects as good as No. 1 Common 

 at point of miscut. 



91. No. 3 DIMENSION will include 

 all pieces falling below No. 2 Grade which 

 are sound enough to use for cheap build- 

 ing material by wasting 25 per cent, of 

 each piece of one-third of number of 

 pieces in any item of a shipment, but it 

 must not be more than V^-inch scant of 

 standard finished width nor %-inch scant 

 of standard finished thickness. (See Sec. 

 27.) 



ROUGH ARKANSAS SOFT PINE 

 FINISHING. 



Widths. Stock width shipments of "C" 

 and Better, either rough or dressed on one 

 or two sides, shall be accepted as standard 

 where not more than 20% of any shipment 

 is 14 inch scant on 8 inch and under; % 

 inch scant on 9 and 10 inch; and i/ 2 inch 

 scant on 11 and 12 inch and wider; pieces 

 narrower than the above, and pieces in 

 excess of 2Q% of the shipment that are of 

 the minimum measurement above given 

 should be measured as of the next lower 

 standard width and not reduced in grade 

 (for width of No. 2 Boards and Fencing, 

 see pages 56 and 57; for width of dimen- 

 sion see Sections 90 and 98.) 



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