The floor (again countable and uncountable, singular and plural, and singular as well as plural) is the surface of a floor, whether that is a hard concrete floor or any other kind of flooring. A floor can be flat (like a wooden floor) or concave (like a shallow caved roof). It can have a grain (like marble) or not (like cement). A floor can be textured like wood or it can be smooth (like concrete). It can also have many different kinds of finishes and materials applied to it.
Most of the time, when people mention floors, they mean one of four things: an upper story (above ground floor), the second story (ground floor to start with, then up to an attic, and so on up to the top floor, which are usually the main article) or the third floor (the main article). I would call the first three floors the ground floors. These are usually the only types of floors people consider when they talk about floors. They are the easiest ones to build for most DIYers because you basically just dig the hole and pour in concrete.
Wood floors (sometimes called carpets or rugs) are different, in that they are built over a subfloor that is usually made of gravel or tile. The reason for calling these types of floors “wood floors” is because most of the wood flooring is actually made of chips of wood put together with some type of glue. Carpet floors (sometimes called rugs) are constructed on a solid base, often with ceramic tiles. They do require the careful measurements of an interior decorator because of their large size and shape.
One of the major differences between floors and carpets is that there are two kinds of undergarment for such flooring: the special floor coating and the main article. The special floor coating is what gives the floor its special look and the seal it needs to withstand constant walking. This coating also prevents the floor from getting scratched and dented since it is what protects the floor from things like dirt. The main article is what actually produces the walking noise that makes a hardwood floor sound. It is a thin sheet of hardwood glued to the main article.
Hardwood floors are usually better suited to be installed by professionals than carpets, although you can also install a hardwood floor yourself if you want. However, if you decide to do it yourself, there are some things you should keep in mind. First, you need to make sure you prepare the subfloors thoroughly before installing the main article. You also need to make sure your subfloors are in good condition so that they will work well when the floor is used. If you have subfloors that are not in great shape, it will be more difficult for the underfloor heating system to heat the rooms properly. That means your entire house will be colder than you intended.
In addition to this, if you have concrete sub floors it can be much heavier than a wood floor and therefore will need to be placed on a concrete footing. If you have limestone or slate sub floors, they will also need to be fitted onto a concrete footing. Overall, the installation of hardwood floor can be very time consuming, although the end results will be very rewarding. If you are not comfortable with the installation or would prefer to hire a professional to do it, you may want to consider the installation of flat ground level slab floors.