Birch：

Birch has manifest growth ring and straight grain with exquisite woodiness in medium hardness.

Birch has high resilience and low wear resistence, and easy to crack and warp when drying. It has good processability and smooth planing surface, and has perfect oiling and gluing effects. Birch belongs to medium-class wood。

The  thickness is 15mm,18mm,20mm,22mm,25mm,30mm,33mm,36mm,38mm,40mm,44mm, 

The width is among 200-1300mm.

yhe length will be ok if no more than 6000mm.