Softwood
Wood from coniferous trees such as pine, spruce, fir, and cedar. The classification is botanical rather than a measure of hardness, though most softwoods are physically softer than hardwoods.
In-Depth Explanation
Softwoods come from gymnosperm trees, primarily conifers, which typically grow faster than hardwood species and account for roughly 80 percent of world timber production. Common softwood species include Douglas fir, southern yellow pine, spruce, and western red cedar, each with distinct structural and aesthetic properties. Softwood lumber dominates framing, sheathing, and general construction markets due to availability, workability, and favorable strength-to-weight ratio. While generally less dense than hardwoods, some softwoods like southern yellow pine and Douglas fir are remarkably strong. Softwoods are also widely used for decking, fencing, trim, and paneling.
Usage Example
The framing crew used SPF softwood for all the wall studs and ceiling joists because it is strong, lightweight, and affordable.