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As previously noted, less wood is needed to produce a given finished size than when standards called for the green lumber to be the full nominal dimension. However, even the dimensions for finished lumber of a given nominal size have changed over time. In 1910, a typical finished 1-inch (25 mm) board was 13 ⁄ 16 in (21 mm). In 1928, that was ...
The board foot or board-foot is a unit of measurement for the volume of lumber in the United States and Canada.It equals the volume of a board that is one foot (30.5 cm) in length, one foot (30.5 cm) in width, and one inch (2.54 cm) in thickness, or exactly 2.359 737 216 liters.
"True dimensional lumber" isn't more splintery than modern "nominal dimension lumber" due to lack of planing. The 2x4s I find in pre-WW2 construction are often more splintery than post-ww2 lumber because they are old dry first-growth hard yellow pine whereas modern 2x4 is half-dried fir or spruce cut from forests that have been repeatedly clear ...
In various subfields of engineering, a nominal value is one for which the "name" for the value is close to, but not the same as, the actual value. Some examples: Some examples: Dimensional lumber sizes such as "2 by 4" refers to a board whose finished dimensions are closer to 1 + 1 ⁄ 2 inches by 3 + 1 ⁄ 2 inches ( 1 + 3 ⁄ 4 inches by 3 ...
A perfect storm has driven lumber prices of up 308% since the onset of the pandemic, with big implications for homebuilders and buyers. Here’s what happened. The unprecedented lumber shortage ...
Parallel-strand lumber (PSL) is a form of engineered wood made from parallel wood strands bonded together with adhesive. It is used for beams, headers, columns, and posts, among other uses. It is used for beams, headers, columns, and posts, among other uses.
Example of true position geometric control defined by basic dimensions and datum features. Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances via a symbolic language on engineering drawings and computer-generated 3D models that describes a physical object's nominal geometry and the permissible variation thereof.
As a flurry of possible drone sightings have triggered local politicians to press federal officials for more information, lawmakers have proposed a variety of different methods for dealing with ...
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