To ensure that you have good floors in your house, just knock on wood. Nothing rivals the way wood warm ups a room, its classic good looks, or how long it lasts—qualities that earn it the distinction of being This Old House's favorite flooring.
Whether you're laying a wood floor in a new house or replacing one that's damaged beyond repair, there are dozens of species to pick from, including trusty domestics, such as oak and maple, and intriguing exotics, such as tamarind and acacia. You also have a choice of widths—be it rustic wide planks or traditional narrow strips—and stain colors, which allows you to tailor your floors to your house's style and decor. And thanks to modern adhesives, a wide variety of species are available as "engineered" boards. Made from a stable sandwich of veneers, rather than solid stock, engineered floors can go places where it wasn't practical to install wood before: over radiant-floor heating systems and concrete and in basements.