14×81

14x81 refers to a specific size designation, most commonly encountered in the context of lumber dimensions. In the United States and Canada, nominal lumber dimensions are often expressed in inches, with the first number representing the nominal thickness and the second number representing the nominal width. Therefore, 14x81 would indicate a piece of lumber that is nominally 14 inches thick and 81 inches wide.

It is important to note that these are nominal dimensions, meaning they are the approximate size before the lumber has been planed and dried. The actual, or dressed, dimensions of a piece of lumber are typically smaller than its nominal size. For example, a 2x4, a very common lumber size, is actually 1.5 inches thick and 3.5 inches wide after milling.

The designation 14x81 is unusual for standard dimensional lumber found in typical construction or retail settings. Common lumber sizes follow a more standardized progression. However, such a specific measurement might be found in specialized applications, custom milling, or in the context of raw lumber before it is processed into standard dimensions. It could also potentially refer to a non-standard product or a measurement in a different unit system if context is missing.