2×8

2×8 refers to a common dimensional lumber size used in carpentry and construction. The designation "2×8" indicates a piece of wood that is nominally 2 inches thick and 8 inches wide. However, the actual dimensions are typically smaller due to planing and finishing processes. In the United States, a standard 2×8 board usually measures approximately 1.5 inches by 7.25 inches (38 mm by 184 mm).

This size of lumber is widely used for structural framing, including floor joists, roof rafters, and wall studs. Its dimensions provide a balance of strength and weight, making it suitable for supporting significant loads in various building applications.

2×8 lumber can be made from a variety of wood species, including pine, cedar, oak, and other hardwoods or softwoods. The choice of material impacts the board’s strength, appearance, and cost. The lumber is available in both graded and ungraded forms, with graded boards having standards for strength and appearance.

In construction, understanding the nominal dimensions versus the actual dimensions is important for precise planning and fitting. 2×8 boards are typically sold in standard lengths, ranging from 8 to 16 feet or longer, allowing flexibility in building projects.

Overall, 2×8 lumber is a versatile and commonly used material in residential and commercial construction, valued for its durability, availability, and ease of handling.