Which rooms can I install a wood floor in my home?

Any room except a full bath.
With the variety of products available and a choice of installation options, hardwood
flooring can now be installed in any room of the home.
The only consideration is whether the floor will be installed on-, above- or below-grade.
For example, because of potential moisture problems, solid hardwood is not
recommended for installations below grade, such as in a basement. Engineered
products, which are inherently dimensionally stable, are better choices for this type of
area.
All types of wood can be installed on- or above-grade.