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(1) Botanical Classification of species most commonly referred to by trade name listed.
An H or S following the trade name indicates whether the species is in the general
classification of Hardwoods or Softwoods
(2) Origin - Area most commonly related to commercial aspects of the timber.
(3) Practical average weight in pounds per cubic foot, g - (green) and, d - (air dry).
(4) Hardness - A general comparative reference pertaining to resistance of the surface
of a piece of the wood to impression.
V H . . . . . Very Hard
H . . . . . . . Hard
M H . . . . . Moderately Hard
S . . . . . . . Soft
V S . . . . . Very Soft
(5) Porosity - A general comparative reference pertaining to surface appearance of what is often
called closeness of grain. Note: Bear in mind uniformity of porous arrangement in tropical woods,
as compared to temperate species which show spring and summer growth contrast in varying degrees.
V P . . . . . Very porous
P . . . . . . . Porous
M P . . . . . Moderately porous
C P. . . . . . Close porous structure
V C P. . . . Very close porous structure
(6) Figure Occurrence. This refers only to crossfire figure and in longwood. Some woods are often
figured and some are not.
V C F . . . . Very commonly figured
C F . . . . . . Commonly figured
F . . . . . . . . Small but dependable percentage of logs figured
S F . . . . . . Seldom if ever figured
(7) Commercial Portions of Tree - Indicates portion of the tree most commonly used for veneer and/or
lumber, as the case may be, in the U.S. market. The letter symbol followed by an R indicates veneer
is rarely developed from this portion in worthwhile amounts.
S . . . . . . . Stump
T . . . . . . . Trunk or bole
C . . . . . . . Crotch
B . . . . . . . Burl
T C . . . . . Cluster type figure from trunk
(8) Size of Timber - These figures are intended to indicate fair average minimum and maximum diameters
(in inches) of veneer logs, (or merchant able logs if not used for veneer) customary available and acceptable.
The occasional tree may yield much larger logs.
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