As a fiber, silk is naturally non flammable, strong, and not affected by static charge problems - even at low humidity. Cellulose fiber This type of fiber is produced by plants and normally not used as face yarns. These types will however, show up as backing materials of tufted as as well as carpets that have been woven. Nylon is the strongest type of material and also the most widely used. Even though nylon will never wear down to the treads, it can fade and get very scrubby in appearance. Buying the proper padding for your carpet and having it treated with a stain resistant treatment will help to make it last a lot longer. You should always make sure the soap doesn't contain bleach or lanolin. The third and best option, is to use water, it can re-hydrate the stain to help with removal. Most types of pet stains can be cleaned up by using a steam cleaner. Once you have finished, be sure to dry the area as thoroughly as possible. Carpets with a 5 rating are considered the best for heavy traffic areas. Rating of 4 are considered outstanding and recommended for heavy traffic areas of your home. Ratings of 2.5 to 4 would provide normal durability for your home. Carpets that rate 2.5 or lower should only be used with light traffic areas, such as bedrooms. You can buy samples of carpet for .25 cents a piece at closeout sales or at your local hardware or carpet store. Depending on the size of the room you are looking to carpet, how many samples you'll need will vary. You'll also need staples as well, which cost around a dollar or so. Most of the time, you can expect to pay a dollar or so for each square of carpet, which is still considered to be cheap carpet. The cut pile has the loop cut at the top, leaving tufts of yarn that stand straight up. Cut pile is normally more durable than looped pile. Cut piles come in many styles, such as shag, textured, saxony, and velvet. Loop pile choices include berber, cable, or sisal. For high traffic areas, loop pile is an excellent choice.