As it seems, a hardwood is not essentially a tougher materials (more dense) and a softwood just isn’t essentially a softer material (less dense). For example, balsa wood is without doubt one of the lightest, least dense woods there may be, and it is thought of a hardwood. The distinction between hardwood and softwood actually has to do with plant reproduction. All bushes reproduce by producing seeds, but the seed construction varies. Hardwood trees are angiosperms, plants that produce seeds with some sort of covering. This may be a fruit, akin to an apple, or a hard shell, resembling an acorn. These plants let seeds fall to the bottom as is, with no protecting. Pine trees, which grow seeds in exhausting cones, fall into this category. In conifers like pines, these seeds are released into the wind as soon as they mature. This spreads the plant’s seed over a wider area. For essentially the most part, angiosperm bushes lose their leaves during chilly weather whereas gymnosperm timber keep their leaves all yr round. So, it is also accurate to say evergreens are softwoods and deciduous bushes are hardwoods. The hardwood/softwood terminology does make some sense. Evergreens do tend to be less dense than deciduous bushes, and due to this fact simpler to cut, while most hardwoods tend to be more dense, and due to this fact sturdier. But, because the classification of balsa wooden demonstrates, there is no minimum weight requirement to turn into a hardwood. How does stress treated lumber work? What number of sheets of paper can be produced from a single tree? The principle distinction between exhausting and softwood is that hardwood is derived from deciduous trees and softwood is derived from evergreen timber.