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2. Board foot - Wikipedia

   en.wikipedia.org/wiki/Board_foot

   Note: see dimensional lumber for a full discussion of the relationship of actual and nominal dimensions. Briefly, for softwoods, to convert nominal to actual, subtract 1 ⁄ 4 inch (6 mm) for dimensions under 2 inches; subtract 1 ⁄ 2 inch (13 mm) for dimensions over 2 inches and under 8 inches; and subtract 3 ⁄ 4 inch (19 mm) for larger ...

3. Lumber - Wikipedia

   en.wikipedia.org/wiki/Lumber

   Finger-jointed lumber – solid dimensional lumber lengths typically are limited to lengths of 22 to 24 feet (6.7–7.3 m), but can be made longer by the technique of "finger-jointing" by using small solid pieces, usually 18 to 24 inches (460–610 mm) long, and joining them together using finger joints and glue to produce lengths that can be ...

4. Real versus nominal value - Wikipedia

   en.wikipedia.org/wiki/Real_versus_nominal_value

   A "3 + 1 ⁄ 2-inch" floppy disk's standard dimension is 90 mm, or 3.54 inches, and is advertised to hold "1.44 megabytes" although its capacity is 1,474,560 bytes (1,440 KB or 1.40625 MB). A "3 ⁄ 4-inch pipe" in the Nominal Pipe Size system has no dimensions that are exactly 0.75 inches.

5. Parallel-strand lumber - Wikipedia

   en.wikipedia.org/wiki/Parallel-strand_lumber

   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. The strands in PSL are clipped veneer elements having a least dimension of not more than inch (6.4 mm) and an average length of at least 300 times this ...

6. Engineering drawing abbreviations and symbols - Wikipedia

   en.wikipedia.org/wiki/Engineering_drawing...

   Means that a feature of size is at the limit of its size tolerance in the direction that leaves the least material on the part. Thus an internal feature of size (e.g., a hole) at its biggest diameter, or an external feature of size (e.g., a flange) at its smallest thickness. The GD&T symbol for LMC is a circled L.

7. L2 Lumbar Spine Vertebrae Function, Definition & Location ...

   www.healthline.com/human-body-maps/l2-second...

   The L2 vertebra is located in the lower curvature of the spine, and the portion of the spinal cord that it protects is known as the lumbar cord. Injury in this area can cause nerve damage, loss of ...