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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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Back
Cut |
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| Final
cut in falling a tree. Made on the opposite
side
of the direction of fall |
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A
delivery by tractor-trailer originates
from where the trailer is loaded, the
load is delivered to a destination, then
the trucker returns home. If the return
is also a paying load to be delivered
to the vicinity of the trucker's home,
that load is called a backhaul. If the
trucker returns home empty, that run
is called a "deadhead." |
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An
evolution in sawmill technology that
uses a thinner band saw blade (less kerf
therefore less sawdust waste) than a
circular saw. A bandsaw also has teeth
on both sides that allows cuts to be
made in two directions instead of just
one, improving efficiency and productivity. |
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The
outer protective layer of the tree. Severely
damaged bark on a tree is a defect that
can lower the value of the its logs.
At the sawmill, logs are first debarked,
then slabs are cut off leaving a rectangular
or square cant to be cut into lumber.
There are two main types of debarkers:
Rosserhead and Ring debarkers. Before
raw bark is sold as bark mulch, it is
ground in a tub grinder (hammermill)
to give it the proper texture and consistency.
Bark quality is a function of color. |
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Cross
sectional area of a tree, in square feet,
measured at breast height. Used as a
method of measuring the volume of timber
in a given stand |
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- An administrative term describing
the the practices necessary
to establish
regeneration of the desired species
at specified densities and
stocking, free
from competing vegetation, and
within a certain time limit.
- Silvicultural
activities required by law. See also
intensive silviculture.
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Any
framing member placed to support a load.
Also called a girder. |
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Best
Management Practices (BMP)
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A
series of forest practices thought to
be the best possible for a specific region
and forest type. BMP are highly promoted
by the American Forest and Paper Association's
Sustainable Forestry Initiative (SFI). |
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Large,
warehouse-type lumber and building material
stores catering to do-it-yourself (DIY)
shoppers. Home Depot and Lowes are examples. |
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Total
woody material in a forest. Refers to
both merchantable material and material
left following a conventional logging
operation. In the broad sense, all of
the organic material on a given area;
in the narrow sense, burnable vegetation
to be used for fuel in a combustion system |
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Biomass
boilers burn bark, sander dust and other
wood-related scrap not usable in product
production. Also called "hogged
fuel" boilers, biomass boilers make
steam and heat for mill use. |
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Tree or trees
felled by wind. Also known as windfall |
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A
fungus discoloration, mostly bluish,
but somtimes grayish, blackish, or brownish
in appearance; found mostly in sapwood,
common in pines and in the warmer months
of summer. At one time this was thought
to be a serious defect; now it is used
as high-quality interior finish |
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A
volume of lumber that measures 1" x 12" x
12". The number of board feet in a
log is estimated using one of three log
scales: Scribner, Doyle, or International
Rule. The standard used in Massachusetts
is the International Rule. The actual yield
of a log after sawn into lumber is often
greater than the estimated yield. Both
logs and lumber are sold by the thousand
board feet or MBF. |
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The
lower section of the trunk of a tree
from the ground
to the first limb or branch. Some loggers
and whole tree operations delimb trees
leaving only the bole or stem portion of
the tree. If chipped in a whole tree chipper,
the result a "cleaner" chip with
fewer leaves, sticks, or pine needles.
Tree stem that has roughly grown to a substantial
thickness, capable of yielding sawtimber,
veneer logs, or large poles |
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Short logs to
be sawn for lumber or used for veneer.
Also:
• Any short log, as a pulpwood bolt or pulpwood
stick.
• Any short stick, generally between 2 and
8 feet long.
• Also referred to as a block.
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Wood
pulp or residue that weigh 2,000 pounds
at zero percent moisture content. Also
known as an ovendry ton |
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A
lumber defect referring to deviation
from a straight line drawn end to end
along the wide face of a piece of lumber. |
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British
Thermal Unit (BTU)
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Measure
of the amount of heat required to raise
1 pound of water 1 degree Fahrenheit.
Amount of latent heat available to be
released when a substance undergoes combustion. |
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Cutting
a felled tree into shorter specified
log lengths; rough cutting logs for length. |
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To
gather trees or logs into small piles
for subsequent skidding by other equipment.
To assemble logs together to form a load
for transport |
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Base of a tree.
Large end of a log |
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The
first cut above the stump of a tree. |
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First log cut
above the stump. Also known as butt cut. |
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Decay
or rot characteristically confined to
the base or lower bole of a tree . |
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For Further Information
Please
contact our knowledgable staff |
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