Birch plywood BB/WG 1220×2440 18mm refers to a specific type of Birch plywood that is 1220mm wide, 2440mm long, and 18mm thick. The “BB/WG” designation indicates the plywood’s quality grade, which is a combination of two different grading systems: BB and WG.

The BB grading system refers to the quality of the face and back veneers of the plywood. In this case, BB means that the plywood has a high-quality surface finish, with a smooth and even appearance free from knots or other defects. The WG grading system refers to the quality of the interior veneers, which are typically of a lower grade than the face and back veneers. In this case, WG means that the plywood has a mix of quality grades in the interior veneers, with some veneers having minor defects such as knots, splits, or discoloration.

Birch plywood is made by gluing together multiple layers of Birch veneers, with each layer running perpendicular to the previous layer. This cross-grain construction gives the plywood its strength and stability, making it ideal for a wide range of applications, including furniture-making, cabinetry, and construction.

The 18mm thickness of this particular Birch plywood makes it suitable for applications that require a sturdy and stable material, such as flooring, roofing, and heavy-duty shelving. It can also be used in combination with other materials to create custom furniture or decorative elements.