Young Black Haired Girl Naked On The Floor

There are a number of special features that may be used to ornament a floor or perform a useful service. Examples include Floor medallions which provide a decorative centerpiece of a floor design, or Gratings used to drain water or to rub dirt off shoes.
Subfloor construction
The subfloor provides the strength of a floor. Many floors have no separate floor covering on top. The subfloor may also provide services like underfloor heating or ducts for air conditioning.