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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). Beside this, why is a 2x4 actually 1.5x3 5?
Why is a 2x4 actually 1.5x3 5? The 2x4 refers to the rough-cut green wood: it shrinks during drying, then the dried wood is planed smooth, so the finished lumber is supposed to end up at 1.5"x3. 5". While it doesn't really shrink that much, the mills get more usable finished 2x4's from a given tree if they cut them slightly smaller to begin with.
The outside dimensions of the standard 4x4 measure 3-1/2" x 3-1/2", and the outside dimensions of the standard 6x6 measure 5-1/2" x 5-1/2". What is the actual size of a 5x5 post? Softwood lumber is generally used for framing walls and floors.
In the past, when a timber was called a 2x4 [or "two-by-four"], it actually measured 2 inches by 4 inches. Because of this extra milling, a 2x4 no longer measures a full 2 inches by four inches. Instead, a 2x4 is really only 1 1/2" by 3 1/2".
Keeping this in consideration, what is the actual size of a 2x4 metal stud? A 2x4, for example, is really 3-1/2" x 1-1/2". Metal framing on the other hand, is referenced by actual size. As a result you will get exactly what you order. If you request a 3-5/8" steel stud, you will receive a full 3-5/8" width.
A piece of surfaced (sanded smooth) 2x4 lumber actually measures 1½ inches thick and 3½ inches wide. In rough-cut condition, a 2x4 is slightly less than 2 inches thick and approximately 4 inches wide. When wood is milled from a rough to a smooth surface, it loses about ¼-inch from each of its four sides.
On the other end, a 2x6 can support a V8 engine of between 600 – 700 lbs. The depth of each structural member will also be a key player here. For example, 2x6 joists that are spaced 24-inches o.c. will provide more support, strength, and improved floor assembly compared to 2x4 of the same grade and species.
Nominal dimensions Actual sizes in inches Measurements in milliliters; 2 x 6: 1 1/2 x 5 1/2: 38 x 140: 2 x 8:
On the other end, a 2x6 can support a V8 engine of between 600 – 700 lbs. A 10 foot long 2x4 carrying a uniform load of 40 pounds per foot (400 lbs total load) will have a maximum bending moment at the center of the span of 1000 ft-lbs. The same 10 foot long 2x4 with a point load of 400 lbs at the center will experience a maximum bending ...
Similarly, it is asked, what can I make with leftover 2x4? That's because the 2 x 4s you find at the lumberyard are often warped and twisted, which doesn't make for good furniture. 1 Modern Bench. 2 Sawhorses. 3 Coffee Table. 4 Firepit Bench. 5 Giant Jenga. 6 Bar Stools. 7 Settlers of Catan. 8 Wall Storage Shelves.