Carpet Tile also called Modular Carpet or Carpet Square is consist normally of bonded carpet. It seals the yarns into the vinyl backing and this binds the yarn in to the back and making it nearly impossible to unravel. Such construction makes carpet squares perfect for heavy traffic and commercial uses. It creates a backing system that is much more durable than Jute and/or Action Back, which is on most roll goods. Their main advantage is that it is a relatively easy job to replace a tile when some type of damage takes place without having to replace the whole carpet. Tiles from underneath furniture can be swapped with those in high-traffic area to even out wear. They also allow easy access to under-floor wiring or plumbing. Extra replacement tiles should be purchased with the main batch, as those brought at a later date will almost certainly be different dye lot. Thus carpet tile is the fastest growing flooring category in commercial interiors. It comes in many inventive patterns and rich colors in various sizes like 16"x16", 18"x18", 19.7"x19.7", 24"x24" and etc. Varying thickness and patterns are available, as well as hundreds of different colors. They can be purchased either dry-backed or self-sticking. The dry-backed version needs a special adhesive (easy release). For less permanent jobs, double-faced tape can be used. Modular carpets can go over almost any surface, as long as it is clean and dry. However, it is not highly recommended for use in below-ground areas, such as a basement, because it could mildew.