Solid Wood Flooring, aka Hardwood
Solid wood flooring is made from one solid piece of wood throughout. This gives it the ability to be sanded and refinished as desired. Each species of wood will have a varying degree of hardness or strength. The chart below shows that Brazilian Walnut is the hardest wood, and Douglas Fir the softest.
Most hardwood flooring is prefinished and stained at the factory. A handscraped finish is very popular as it gives a natural appearance and wears very well.