PreQ ESD- 1.1 Wood Processing

The mark created in a section of the wood every year

Annual ring

The wood in the centre of the log

Heart wood

The process of which Heartwood is created

The middle of the trunk dies and becomes harder, darker and drier

The younger wood in a log

Sapwood

Characteristics of Sapwood

Wet due to still being used for transporting food and lighter in colour

Conversion

The process of sawing through the tree trunk

Through and Through conversion

quick cheap method of conversion, but produces planks that are likely to warp

Quarter sawn Conversion

a more costly method that produces more waste, but the planks produced are less likely to warp.

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Through and through Conversion outline

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Quarter sawn Conversion outline

Seasoning

The process of drying wood slowly to prevent warps, splits, bow, twist and from rotting

Kilns

Large ovens to season wood

Storing wood

Wood should contain less than 10% water, and stored flat or vertically upright

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Warp

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Bow

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Twist

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Split