Which type of lumber is commonly associated with structural strength in construction?

Softwood is often associated with structural strength in construction due to its favorable properties such as light weight, strength-to-weight ratio, and availability. It typically comes from coniferous trees, such as pines and firs, which grow quickly and produce wood that can be harvested sustainably. The straight grain and relatively uniform texture of softwoods also make them convenient for construction purposes, allowing for predictable performance under load.

Softwoods are commonly used in framing, beams, and other structural components, where their strength and ease of workability are advantageous. Engineered wood, while also strong and increasingly popular, typically consists of layers or fibers of wood bonded together, making it a different category that is specifically designed for certain structural applications rather than solid wood. Hardwoods are generally denser and used for fine furniture and cabinetry, not primarily for structural applications. Particleboard, being made from wood particles and adhesives, lacks the structural integrity needed for load-bearing purposes.