If you’re in the initial stages of deciding what kind of flooring you want, the first thing that probably comes to mind is comparing styles, like wood look vs. carpet. But while planning your new floors, an important question to consider is “What’s beneath the surface?” Gorgeous new hardwood, vinyl, tile, and carpet will be what your family and guests see, but underneath that beauty is an important, often overlooked component: the subfloor providing integral support to the flooring surface above it. What is a subfloor? Let’s find out.