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-Moulding and
Millwork Jargon- |
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| Kerfing- |
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| Longitudinal saw cuts of machined
grooves of varying depths (dependent on the thickness of the wood
member) made on the unexposed faces of millwork members to relieve
stress and prevent warping. |
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| Knee
Wall Moulding- |
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A crown-like
moulding suitable for installation at oblique joints. |
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| Knots- |
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A portion of a
branch or limb that has become incorporated in a piece of lumber. In
lumber, knots are classified as to form, size, quality and
occurrences. A red knot is one that results from a live branch
growth in the tree and is inter-grown with the surrounding wood. A
black knot is one that results from a dead branch which the wood growth of
the tree had surrounded. |
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(a) A pin knot is not
over 1/2". |
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(b) A small knot is not
over 3/4". |
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(c) A medium knot is not
over 1-1/2". |
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(d) A large knot is over
1-1/2". |
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(e) A sound knot
contains no decay. It may be red or black. |
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(f) A tight knot
is so fixed by growth, shape or position that it retains its place in the
piece. It may be red or black. |
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(g) A "loose"
or "not firmly fixed" knot is one not held tightly in place by
growth, shape or position. |
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(h) A "fixed"
knot will retain its place in dry lumber under ordinary conditions but can
be moved under pressure through not easily pushed out. |
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