Carpets are a traditional material for flooring - while there has to be a base floor, a sub-floor as it were, already pre-existent, it is often the case that carpet is unrolled over a floor that has been levelled, but is otherwise unfinished, perhaps even rough - a floor that cannot be shown, in other words, for fear it will ruin the décor and the impression visitors might gain upon seeing the rest of the furnishings. Carpet flooring and carpet floors, therefore, are a perfectly common sight - though not everyone uses carpet to cover up unseemly floors, of course, carpets can be, and often are, showpieces in their own right, and a beautifully woven, luxuriously thick carpet on a gleaming hardwood floor, is a thing of beauty, and very nearly a joy forever. Carpet flooring is easy to obtain, the wall-to-wall sort rather easier than the smaller, more showy pieces, though both types can be 
found at any store that stocks carpets and other, related items like mats and rugs.
Carpet Floor Tiles
Carpet floor tiles are, admittedly, a bit of a new thing in the world of carpet flooring, though they are also the product of what we might dub natural evolution. The necessity for smaller carpets is present and very real - you may not want to cover up your floor, but rather to maintain it in its pristine condition by protecting it from the weight of furniture that can warp or bend your wooden or tiled or laminate floor - and has already presented carpet floor mats, which, while retaining the style and make of carpets, are much smaller in size. The carpet floor tile might easily be considered the newest product of this demand for smaller carpets. Carpet floor tiles, as the name implies, are
squares of carpet that can be arranged and rearranged in various ways, according to the whim of the purchaser. They are available in various colours, designs, and textures - this, obviously enough, allows you to pick the tiles that best suit your décor, the use to which you plan to devote the tiles, and the expected amount of foot traffic: a high-traffic area requires tiles that are thicker and more durable, than the tiles required by a low-traffic area. The major advantage of carpet floor tiles - and their major difference from carpet floor mats - is the fact that the tiles can be purchased in packs, and several tiles, when laid down together, can form even wall-to-wall carpet floors.
So look to carpet floor tiles, for all your carpet flooring needs.