Common Carpet/Rug Types
Cut pile - this is the standard type of carpet construction that most people have in their homes. It is the most plush, durable, and stain resistant of all carpet types.
Level loop pile - this is the low cut type of carpet that you might see at work. All of the fibers are the same height. It's not as plush as the cut pile carpet, but otherwise it is just as durable and stain resistant.
Multi-level loop pile - there could be 2 to 3 fiber heights in this type of rug or carpet. Usually they are produced with a particular pattern in mind, but not always.
Indoor/Outdoor - these carpets are similar to level loop pile carpets, but are constructed with lower grade fibers.
Fibers Used In Carpets/Rugs
Nylon - strongest and most popular carpet fiber. Good at resisting stains.
Olefin - best at resisting stains, but not as strong and durable as Nylon. Lower quality versions will flatten much easier than Nylon.
Wool - natural fiber typically used in luxury carpets/rugs and is very soft with good durability. Stain resistance is not as good as Nylon or Olefin.
Polyester - soft as wool, but not as durable. Cleanability is good if enhanced by stain resistant treatment. Less expensive than Wool or Nylon.
Cotton - soft under feet, but is not very stain resistant or durable.
Acrylic - soft as wool, but is not very durable.