The subfloor is typically something only builders and flooring installers deal with, as it is the piece of flooring that is closest to the floor joists. It is the structural flooring that provides a solid and stable flat surface to support an interior flooring like laminate. So, you may have noticed we reference “subfloor” a lot – this is because the preparation of the subfloor is so important to the life span and performance of your laminate flooring. Being that laminate flooring is a thin, resilient flooring option it is vulnerable to any problems that originate beneath it (ie nails, separating floor joists, moisture)