16×12

16x12 refers to a common size specification, most frequently encountered in the context of lumber dimensions. It indicates a piece of wood that is nominally 16 inches by 12 inches in its cross-section. However, it is crucial to understand that these are nominal dimensions. In the United States and Canada, lumber is typically sold based on its rough-sawn dimensions before it has been planed and dried. The actual, finished dimensions of a 16x12 piece of lumber would be smaller, often around 15.5 inches by 11.5 inches, though exact measurements can vary depending on the milling process and moisture content.

This size designation is not standardized in the same way as, for example, 2x4 lumber, which has a widely recognized set of finished dimensions. Therefore, when specifying or purchasing 16x12 lumber, it is essential to confirm the precise, finished dimensions with the supplier. The "16x12" designation is less common in standard construction framing than other dimensions. Its use might be found in specialized applications, such as large beams, custom furniture making, or specific architectural elements where substantial cross-sectional strength is required. The terminology itself is straightforward, representing two perpendicular measurements of the material's cross-section.