Import Plywood Grade Rules

Indonesian/Malaysian Grade Rules

FD GradeFree-Of-Defect, very similar characteristics to an ANSI/HPVA “A” Grade.
BB GradeSmooth, tight cut, full length veneer. Natural characteristics of the wood such as pin knots, sound burls, color streaks and spots are allowed. Dead knots, stain and mineral streaks, decay, open splits, rough cut, torn grain, symmetrical patches are not allowed.
CC GradeNatural characteristics of the wood are allowed. However, in comparison to the “BB Grade” the following characteristics ARE permitted: Color, dead knots and rough cut (if well puttied), and hairline splits (max. 6″).
OVL GradeOverlay and Better Grade. In addition to BB and CC grade, OVL may contain dead knots and knot holes (if well puttied), stain and mineral streak, hairline split (max. 12″), rough cut and torn grain.
IndustrialAllows open defects such as splits and gaps at the veneer joint as well as all the natural characteristics of the wood specie.
NOTE: The BB and CC grades are usually combined and marketed as a BB/CC panel.

Chinese Grade Rules

B/C or B/2 GradeFairly uniform in color with slight contrasts allowed. Small conspicuous burls and pin knots allowed with a minimum number of scattered sound or repaired knots. Both faces are typically sanded smooth.The “C” back grade is typically more on the C minus to D plus grade or compatible to a #1 and #2 mix back grade on ANSI/HPVA standards.
C/D or C/2 GradeA larger color contrast is allowed. There are a unlimited number of conspicuous burls and pin knots and greater quantity of scattered sound and repaired knots allowed. “Blended Repaired” is allowed whereby splits in the veneer will be repaired with color matched putty. The “D” back grade is typically more on the D minus grade or compatible to a #2 and #3 mix back grade on ANSI/HPVA standards.
D/E or D/3 GradeAll defects not permitted by C grade will generally be allowed on D grade. More sound and dark pin knots, repaired knot holes, longer putty repaired veneer splits will be allowed, but the number of knot holes is the major determining factor. The “E” back grade borders in grade and similarity to the #4 or reject back grade on ANSI/HPVA standards.
NOTE: The majority of these panels are laid up on a Chinese Poplar core. IT IS VERY IMPORTANT TO UNDERSTAND THE APPLICATION OF THE PANEL.
B Grade: often used for upper-end cabinetry, architectural millwork, and furniture.
C Grade: used primarily on paint grade type applications, in lower-end case work, and for cabinet interiors in upper-end cabinetry.
D Grade: used for non-visible cabinet parts.

Russian (Baltic) Grade Rules

B GradeOne piece sanded face with even color. No patches, voids or mineral streaks allowed.
BB GradeOne piece sanded face with generally even color. Slight pin knots and mineral streaks allowed. Open knots and defects are cut out and replaced with oval patches.
CP GradeThis is a fall down from BB with more patches on the face that may not always be matched for color. Splits less that 0.5 mm are allowed.
C GradeUn-sanded face that allows patches, open knots and veneer splits.
NOTE: Russian Birch panels are a consistent specie throughout the panel (core and face and back veneer).