Characteristics permitted and limiting provisions shall be:
Checks- seasoning checks not limited. Through checks at ends are limited as splits.
Manufacture - Standard âFâ Manuacture admits: very heavy torn grain; raised grain; very heavy loosened grain; heavy machine bite; machine gouge; heavy machine offset; chip marks; knife marks; medium wavy dressing; medium mismatch. |
Pockets - pitch or bark, not limited. Shake - surface shakes permitted. If through at edges or ends, limited as splits; Elsewhere through shakes 1/3 the length, scattered along the length. Skips - hit or miss, with a maximum of 10% of the pieces containing heavy skips. Slope of Grain - 1 in 4. Splits - equal to 1/6 the length of the piece Stain - stain wood, not limited Unsound Wood - spots or streaks limited to 1/3 the cross section at any point along the length. Must not destroy the nailing edge. Wane - 1/2 the thickness and 1/2 the width full length, or equivalent on each face, provided that wane not exceed 7/8 the thickness or 3/4 the width for up to 1/4 the length. Warp - medium. White Speck & Honey Comb - firm. |