| Defect | Cause | Appearance | | :--- | :--- | :--- | | | Too rapid surface drying | Small cracks on surface | | End checks / splits | Moisture escaping too fast from ends | Deep cracks at log ends | | Warping (bow, twist, cup) | Uneven shrinkage or poor stacking | Distorted shape | | Casehardening | Surface set in tension (kiln drying) | Internal stresses, warping when recut | | Collapse | Severe internal stresses (high temp drying) | Corrugated or wrinkled surface |
The primary goal of seasoning is not to remove all moisture, but to bring the timber into a state of equilibrium. The key objectives include: what is seasoning of timber
Timber, in its freshly felled state (known as "green timber"), contains a high percentage of moisture. This moisture leads to dimensional instability, susceptibility to decay, and reduced strength. is the controlled process of reducing this moisture content to a level appropriate for its intended use. This report outlines the purpose, methods, advantages, and disadvantages of timber seasoning. | Defect | Cause | Appearance | |
Dry wood is easier to saw, glue, and finish with paints or varnishes. is the controlled process of reducing this moisture
To understand seasoning, one must understand the two forms of water in timber: