Detailed grading rules and full quality requirements are described in GOST 3916.1-96 Simplified Russian plywood grading rules in accordance with GOST 10.55-71 and GOST 3916.1-96 are presented below: 10.55-71Grade BGrade BBGrade CPGrade C3916.1-96Grade IGrade IIGrade IIIGrade IVPin knotsNot more than 3 per square meterAllowedAllowedAllowedSound intergrown knotsAllowed with diameter not more than 15 mmAllowed with diameter not more than 25Allowed with cracks …

Grades Blatic Russian Birch GRADES BB/BB: Whole piece face and back veneer. Face veneers are graded clear and free of defects with a light-white uniform color. Inner cores are solid birch single piece veneers.BB/BB: Whole piece face and back. Tight pin knots may be present and inner cores are solid single piece veneers.BB/CP: Whole piece face and back. The “CP” …

An extensive range of birch plywood carrying very specific technical information including loading/ bending strength data. Plywood suited to your application Plywood sheets comprising birch veneers throughout which produces the most versatile of products. Suitable for applications; general construction, defined engineered structures, decorative panelling/furniture etc. Birch as a species is pale or yellow coloured and very dense with short wood …

With different plywood glue types and classifications available for plywood depending on it’s end use we put together this simple guide for all of our plywood. Glue Classifications for Interior / Exterior EN314-2 Durability of glue bond between the layers within the plywood. Class 1 = Interior (dry) conditions.Class 2 = Humid conditions. This can include protected exterior applications or …

GradeDescriptionFD 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 …

GradeDescriptionB/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 …

RUSSIAN (BALTIC) GRADE RULES GradeDescriptionB 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 …

RUSSIAN (BALTIC) GRADE RULES GradeDescriptionB 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 …

Birch Plywood – BB Grade – EN636-2  EN314-2PEFC and FSC® certified, also CE Marked Birch Throughout – B/BB & S/BB Grade – EN636-2  EN314-2  Class 3PEFC and FSC® certified, also CE Marked Birch Throughout – BB/WG & BB/CP Grade – EN636-2  EN314-2  Class 3PEFC and FSC® certified, also CE Marked Birch Throughout – CP Grade – EN636-2  EN314-2  Class 3 …

Reasons Why Baltic Birch Is a Preferable Plywood 1. Superior Screw Holding Because the core layers of Baltic birch are actually veneers of birch (rather than a softer, secondary wood)  and form a void-free core, screws bite and hold with 100% of their threads. Conversely, traditional veneer core plywood has voids and is also made up of softer materials so …