Seasoning of timber is the process by which the appropriate level of excess moisture is removed from the timber with the improvement of its certain properties. After cutting, it cannot be used immediately because at that time the tree has uneven sap and about 50% moisture. The presence of excess moisture inside the wood causes the wood to shrink and it is also more prone to rot. Seasoning of timber removes all these problems. Even after seasoning 100% of the moisture content cannot be removed from the timber but after that, the moisture content within the tree remains only 12-15℅. Seasoned wood can contain up to 15% seasoning. order 4x2 treated timber best price UK