Birch Asian Frame Grade

Provides the user with natural „rustic” looking birch boards.The allowed size of sound knots is up to 1/3 of the width of the board and black knots with diameter up to 25mm. 25mm thickness boards have to be white on 4 sides. In thicker dimensions 32/50mm is allowed red heart on one face in some small volume.
Excessive red heart, very big worse knots , mould, rot, undersize, cupping, bowing and twistings of the boards are not allowed.

Available dimensions 25/32 x 75/100/125/150 x 1800-3000mm with 300mm steps.

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