30 Four pin worm holes or their equivalent equals one defect. Three spot worm holes or their equivalent equals one defect. wo knots or other defects, the diameter of which when added together do T not exceed 1-1/4" equals one defect. ot more than two standard defects of the above types can be admitted to the N piece, each additional pin worm hole, spot worm hole, knot or hole 5/8" or less shall be considered as one additional standard defect. ith not exceeding 2-1/2" in length in the aggregate shall be considered one P standard defect. Defects larger than one standard defect, excepting wane and split, shall be considered on the following average diameter measurement: • 2-1/2" knots or their equivalent shall be two standard defects. • 3-3/4" knots or their equivalent shall be three standard defects. • 5" knots or their equivalent shall be four standard defects. ne split equal in length in inches to the surface measure of the piece in feet and O diverging not more than 1" to the foot in length. ane or its equivalent in other defects, 1" wide, one-sixth the length of W the piece along the edges, or its equivalent at one or both ends. In the wane defect, wane may extend through the full thickness of the piece showing on both faces. orm, grub, knot and rafting pin holes, not exceeding in extent one W standard knot defect described above. EQUIVALENT DEFECTS: Other defects not defined as standard defects, that do not damage the piece more than the standard defects allowed, are equivalent defects and must be so considered by the inspector.
Sap Gum, Cottonwood, Black Gum, Tupelo, Magnolia, Willow Note: A National Hardwood Lumber Association Inspector will not make any distinction in species between Black Gum and Tupelo. FAS, F1F, SELECTS, NO. 1 COMMON, NO. 2A COMMON, NO. 2B COMMON: Standard except, unless otherwise specified, stain is admitted in all grades