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Plywood Grades
This section is intended to give the user an overview of the characteristics common in face and back veneer grades as well as core material grades. For more specific grading information by species, please reference the ANSI/HPVA and IHPA standards.
Face Grade
| AA |
The best quality face grade for high end uses such as architectural paneling, doors and cabinets, case goods, and quality furniture. |
| A |
Where AA is not required but a high quality appearance grade suitable for clear finishing is very important as in cabinets and furniture. |
| B |
Where the natural characteristics and appearance of species are desired or a grade that provides a suitable substrate for high quality painted finishes. |
| C, D, E |
Provide a sound surfaces but has unlimited color variations. Grades C, D and E, respectively, allow repairs to open defects in increasing size and frequency. |
| S |
Decorative face veneer that permits natural characteristics such as knots. |
Back Grade
| 1 |
The best quality face grade for high end uses such as architectural paneling, doors and cabinets, case goods, and quality furniture. |
| 2 |
Where AA is not required but a high quality appearance grade suitable for clear finishing is very important as in cabinets and furniture. |
| 3, 4 |
Where the natural characteristics and appearance of species are desired or a grade that provides a suitable substrate for high quality painted finishes. |
Core (Inner Ply) Grade
| J, K L, M |
Four inner ply grades are described with the J, K, L and M letters.
Grade J is the most restrictive, allowing minimal size openings.
Grades K, L and M are progressively less restrictive.
Grade M is usually reserved for plies no adjacent to faces and allows round and similar shaped opening not to exceed 63.5 mm (2-1/2") and elongated openings up to 24.1 mm (1") as visible on the edges or ends of panels. |
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