Fresh cut unedged oak:

Quality: AA; A1;A2;AB1;AB2;BC;C

- Thickness: 20 (22);25(28);32 (35);38(42);50(54); 52 (57)mm

- Width: min 110 mm

- Length: mainly 3000 (+50-100) mm (but possible from 1500 mm)

Kiln dried unedged oak:

Quality: AA; A1;A2;AB1;AB2;BC;C

- Thickness: 20;25;32 ;38;50;52mm

- Width: min 100 mm

- Length: mainly 3000 (+50-100) mm (but possible from 1500 mm)

- KD: 8-10%

quality AA – free of knots

quality A 1 – one wide side free of knots. Other side knots allowed and size do not matter.

quality A 2 – one wide side one knot allowed per 2 meters, knot size do not matter. Other wide side knots allowed and knots do not matter.

quality AB 1 –  one knot allowed per one meter on one wide side, knot size upto 25mm. Other wide side, knots allowed and sizes do not matter.

quality AB 2 – one wide side allowed one knot per one meter, size of the knot do not matter. Other wide side knots allowed and sizes do not matter.

quality BC –  one wide side allowed knots upto 25 mm. Other side knots allowed and size do not matter.

quality C – both sides knots allowed of all sizes.