Homonym: 2x4 (Lumber)
A "2x4" is a common piece of lumber that measures approximately 2 inches by 4 inches in cross-section. Despite its name, the actual dimensions are typically 1.5 inches by 3.5 inches due to the milling process. It is widely used in construction for framing walls, floors, and roofs, providing structural support.
This type of lumber is often made from softwoods like pine or fir, which are readily available and easy to work with. The versatility of 2x4s makes them a staple in both residential and commercial building projects, as well as in DIY home improvement tasks.