12×8

12x8 is a common dimension used to describe the size of rectangular objects, most notably lumber and sheet goods in construction and manufacturing. It refers to a nominal size where the first number represents the length and the second number represents the width, both in inches. For instance, a 12x8 piece of plywood would be 12 inches long and 8 inches wide. In the context of lumber, such as 2x4s or 4x4s, the dimensions are also nominal and often refer to the rough-cut size before milling. However, 12x8 is less common for standard dimensional lumber which typically follows a different sizing convention.

The term 12x8 is frequently encountered when ordering materials for projects. It's important to distinguish between nominal and actual dimensions, as processed lumber and sheet goods are usually slightly smaller than their stated nominal size due to planing and trimming. For example, a 12x8 sheet of plywood will have an actual size very close to 12 inches by 8 inches. This specific dimension can be used for various applications, including small shelving units, decorative paneling, or as components in larger assemblies. The prevalence of 12x8 dimensions stems from efficient material usage and standard manufacturing practices.