Selects and Better:
Widths: 4 in.
and wider, of which 5% of 3 in. width is admitted.
Lengths: Random
4ft. and longer admitting 10% of 4 ft. to 6 ft. lengths.
Minimum cuttings:
4 in. wide by 3 ft. long , or 3 in. wide by 6 ft. long. There
is no limit to the number of cuttings. This grade admits all boards
of 1 ft. and over, surface measure, that will yield not less than
83-1/3% of clear- face cuttings, the reverse side of the cuttings sound
as defined in "Sound Cutting," except that boards of 1 ft. and over,
surface measure, yielding not less than 83-1/3% clear-face cuttings on
one face, the reverse side of the board grading not below No. 1 shop.
Pith: No piece
shall be admitted which contains pith exceeding in the aggregate in inches
in length twice the surface measure in feet.
Splits: No piece
shall be admitted which contains splits exceeding in the aggregate in inches
in length twice the surface measure of the piece in feet, nor when diverging
more than one inch to the foot in length, except when one foot or
shorter and covered by paragraph 59 of Standard Grades.
Wane: On the
face side of Selects and Better, wane or its equivalent shall
be limited to one-twelfth the surface measure of the piece.
On the No. 1 Shop side of
Selects and Better, wane or its equivalent shall not exceed
one-fourth the width by three-fourths the length in the aggregate, or pieces
may alternately have wane one-third the width by one-half the length in
the aggregate. Width of the wane may be divided and show on both
edges. The reverse side of the cuttings in Selects and Better and
No. 1 Shop are not required to be sound. |