Definition of Terms
"PREMIUM"
is the Pine grade formerly known as #2 and #3. The grade spread is fairly
broad, and does allow for knots of various size.
"STD"
(Standard) is the Pine grade #4. The grade allows large red knots, and some
loose knots. This is the grade most often used in the manufacture of
ship-lapped siding.
"BTR"
(Better) when used as a suffix to a grade, such as "STD" &
"BTR", indicates that the specified grade has enhanced by including
varying quantities of higher grades, and generally does not increase the price.
"D &
BTR" is the Pine grade that includes all of the select grades. This grade
may allow Small Tight Knots (STK), but for the most part this lumber is clear
and free of defects.
"FAS"
(First And Seconds) is the Hardwood grade which includes the superior "Furniture
Grade" Hardwoods. The grade is typically free of defects, but some defects
are allowed.
"S3S"
is a description of finish, usually pertaining to Hardwood species. It
represents "Surfaced Three Sides", which indicates that two faces have
been planed, and one edge has been processed with a "straight-line"
rip saw which renders the edge straight and smooth. The fourth edge is left
rough.
"S4S"
is a finish which renders both faces and both edges planer-finished.
"RGH"
(Rough) indicates that the specified material is merchandised in its
"Rough" state.
“CMG” is clear mixed
grain.
“CVG” is clear vertical
grain.
“D4S” is dressed four
sides.
“ECB” is Edge & Center
Bead.
“T & G” is tongue and
groove.
“S1S2E” is finished one face
and two edges.
“A+” & “D+” is
softwood select grade.
"QUARTER
MEASURE" - Lumber size is often referred to as 4/4 (pronounced
FOUR-QUARTER), 5/4 (FIVE-QUARTER), 6/4 (SIX-QUARTER) ETCETERA. This refers to
the thickness of the lumber when it is first sawn, and in its rough size. The
size increases in 1/4" increments. 5/4 lumber measures one and one-quarter
inches, or five 1/4" increments. When surfaced, the lumber is dressed to
1", and 4/4 would be dressed to 3/4".
To calculate
"Board-Foot" measure (/BF or Bd. Ft.) use the following formula and
dimensions of the lumber in the rough:
Thickness (in inches) X Width (in inches) X Length
(in feet)
Is divided by 12
Example: 1" X 6" X 10’ divided by 12 = 5
Bd.Ft.
Example: 3" X 4" X 16’ divided by 12 = 16
Bd.Ft.
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