Microsoft Word - Text - Advanced Woodworking

(Jacob Rumans) #1
WOODWORKING
Chapter 8

FIGURE AND GRAIN


Introduction:
At some point in your woodworking career you will need to identify lumber. How this is done is similar
to the method by which you can be identified: your finger print, skin pigmentation, and identifying scars or
marks. You are unique and special, so much so that not even your finger print is the same as any other
human being. Wood is unique as well (though not as special as you), and also has unique characteristics by
which it can be identified. Like you, it has a uniquely patterned “finger print,” a certain color pigmentation,
and identifying scars and marks. These identifiers are known as grain and figure.


Understanding Grain:
Grain is the term used to describe the pattern of lines found in lumber formed from the cells that make
up wood. Simply put, grain is the appearance of the wood resulting from growth ring structure, much like a
human finger print. These lines can be found in the three different surfaces on which grain appears: the End
Grain, the Face Grain, and the Edge Grain


 End Grain: End grain is at the end of the
board, the part through which the cross cut is
made. It looks and acts differently than the
other two grain surfaces. As we saw in the
last chapter, inside the tree the wood is made
of long cells running longitudinally up the
tree, which we compared to a bundle of
straws. When a cross cut is made, then, the
end of the board is nothing more than a
series of small open pores. This means that
whatever is put on the end grain is absorbed
very quickly and pulled deeply into the
wood, much like straws or a sponge sucking
up water.

 Face Grain: The widest side of the board
where we see the grain pattern and
determine the figure of the wood is called
the lumber face. The grain here runs from
end –to-end and is called the face grain.
Joints made by adjoining face grains are for
the purpose of creating thicker wood, such as beams, or for creative decorative layers for as bowls
and goblets.

 Edge Grain: The longitudinal edge of the board contains the edge grain. It, too, runs from end to
end. Joints along the edge grain are for creating planks (wider boards such as table tops, drawer
fronts, etc.)

Understanding Figure:
In woodworking, when we speak of what wood looks like (i.e. color variations, grain pattern, rays,
knots, etc.), we use the term figure. Figured wood is not plain. The surface appearance has illusory
movement, distinct patterns, and unique character. Yes, the grain has much to do with figure, but the
natural properties of the wood and how it is cut also contribute. Below is a list of figure types.


Unit II: Understanding Wood

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