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So, a “4/4” board is four quarters, or 1 inch thick, an “8/4” board is eight quarters, or 2 inches thick, a “10/4” board is ten quarters, or 2.5 inches thick, etc. Board Foot: Rough sawn lumber is usually sold by the “board foot” (bd. ft.).
What is a 4 by 4 piece of wood?
A “quarter” system is commonly used in the hardwood lumber industry when referring to thickness. 4/4 refers to a 1 inch thick board, 6/4 is 1-1/2 inch, 8/4 is 2 inches, and so on.
Why is it called 5 4 board?
Quarters refer to the thickness of rough-sawn lumber measured in ¼-inch increments. Instead of reading it as a fraction, it should be read as a number of quarters: 5/4 is five quarters, 4/4 is four quarters, etc.
What is the actual thickness of 5/4 lumber?
5/4 (five-quarter) lumber is 1.25″ thick when rough sawn. When 5/4 lumber is planed, typically it is finished at 1.063″ thick. 6/4 (six-quarter) lumber is 1.5″ thick when rough sawn.
How is wood measured?
The board foot is the most common standard used for saw logs and lumber. A board foot contains 144 cubic inches of sawed lumber or the equivalent of a board 1 inch thick, 12 inches wide and 1 foot long. A second unit of measure is the cord. The standard cord is a pile of wood 4 feet high, 4 feet wide and 8 feet long.
What is s4 lumber?
S4S stands for “surfaced on 4 sides”, meaning that the material is finished on all four sides. Dimensional lumber is commonly S4S. S4S finished lumber and dimensional lumber are labeled according to nominal size, or the size of the rough board before it was planed smooth.
What size is a 4×4 wood?
Nominal vs. Actual Measurements of Dimension Lumber Nominal Size Actual Size 2 x 10 1 1/2 x 9 1/4 inches (38 x 235 mm) 2 x 12 1 1/2 x 11 1/4 inches (38 x 286 mm) 4 x 4 3 1/2 x 3 1/2 inches (89 x 89 mm) 4 x 6 3 1/2 x 5 1/2 inches (89 x 140 mm).
Why is wood measured in quarters?
Rough sawn lumber comes in “true” thicknesses as reflected by the “quarters” size. Lumber sized according to “Quarters” reflects the number of quarters of an inch thick the lumber is. To figure the thickness of a board referenced in “quarters” sizes, simply divide the second number (4) into the first number.
Why is a 2×4 not 2×4?
DIMENSIONAL LUMBER: In the past, when a timber was called a 2×4 [or “two-by-four”], it actually measured 2 inches by 4 inches. Because of this extra milling, a 2×4 no longer measures a full 2 inches by four inches. Instead, a 2×4 is really only 1 1/2″ by 3 1/2″.
What is quarter sawed lumber?
Quarter sawn lumber refers to the angle at which the tree’s growth rings intersect the face of the sawn board. Although there are differing opinions on the term, fully quarter sawn lumber is generally defined as growth rings that are 80 to 90 degrees to the face of the board.
Is a 4×4 really 4 inches?
While it is true that the actual size of a 4 x 4 board is 3 ½ x 3 ½, that is not a deceptive practice in my opinion. It is well known that lumber is sold based on nominal sizes, and the actual size of the boards is smaller than the nominal size.
What lengths do 2×10 come in?
Floor Joists Floor framing requires 2-by-8, 2-by-10 or larger dimensional lumber. Normally, these are available in 8- to 16-foot stock lengths.
Why is lumber not the actual size?
The “nominal” cross-section dimensions of a piece of lumber, such as 2 X 4 or 1 X 6, are always somewhat larger than the actual, or dressed, dimensions. The reason is that dressed lumber has been surfaced or planed smooth on four sides (called S4S). The nominal measurement is made before the lumber is surfaced.
What are the actual dimensions of a 4×4?
Actual Size The outside dimensions of the standard 4×4 measure 3-1/2″ x 3-1/2″, and the outside dimensions of the standard 6×6 measure 5-1/2″ x 5-1/2″. Likewise, how wide is a 2 by 4? A piece of surfaced (sanded smooth) 2×4 lumber actually measures 1½ inches thick and 3½ inches wide.
What is actual length of 2x4x8?
2×4 – 8′ Lengths Although not quite as common as the pre-cut studs I described above, my local Home Depot has a fairly good selection of 2x4s that measure 8 feet (96”).
What are standard wood sizes?
Dimensional Lumber Nominal Size Actual Size 2×12 1-1/2″ × 11-1/4″ 4×4 3-1/2″ × 3-1/2″ 4×6 3-1/2″ × 5-1/2″ 6×6 5-1/2″ × 5-1/2″.
What does BTR mean on lumber?
Better BTR Better B&B B & Better CON COM Construction Common Redwood CON HEART Construction Heart Redwood STD BTR Standard & Better.
What is s3 lumber?
Surfaced Three Sides: S3S It stands for “Surfaced Three Sides”, which, as used in Goosebay’s hardwood lumber descriptions, indicates that two faces have been planed, and one edge has been processed with a straight-line rip saw, rendering the edge straight and smooth.
What is better #1 or #2 lumber?
#1 Grade: When appearance becomes more of a factor, #1 Grade will contain smaller, fewer, sound, tight knots and have less wane than found in #2 Grade. While it can have wane similar to that found in #1 Grade, it has tighter growth rings and contains smaller and fewer knots.
