Choosing the right type of carpet depends on your basement’s use. If you plan to use the basement for entertainment, a Triexta carpet is a good choice. Nylon is more expensive and provides slightly less flexibility. Finally, polyester has the least flexibility and is therefore less durable than other fibers. Once you’ve chosen the right carpet fiber, you need to determine the type of backing. Ensure that you choose a type of backing that will allow the carpet to breathe and expel moisture.