Veneer grading scale
description
N - Special order “natural-finish” veneer. Select all heartwood or all sapwood. Free of open defects. Allows some repairs
A - Smooth and paintable. Neatly made repairs permissable. Also used for natural finish in less demanding applications
B - Solid surface venner. Circular repair plugs and tight knots permitted.
C - Knotholes to 1 inch. Occasional knotholes 1/2 inch larger permitted providing total width of all knots and knotholes within a specified sectiondoles not exceed certain limits. Limited splits permitted. Minimum veneer permitted in exterior-type plywood.
C (Plgd) - Improved C veneer with splits limited to 1/8 inch in width and knotholes and borer holes limited to 1/4 inch by 1/2 inch
D - Permits knots and knotholes to 2 1/2 inches in width and 1/2 inch larger under certain specified limits. Limited splits permitted.