Glossary of Terms

Information to assist you in making your flooring selection.

Term Description


Nylon is utilized in approximately 65% of the carpet sold in the U.S. It is a very durable fiber with excellent performance characteristics. Its strengths include good resiliency, good yarn memory to hold twist, good carpet cleaning efficacy, good stain resistance with stain treatment applied, good soil hiding ability, and good abrasion resistance.

Nylon is manufactured in both BCF and staple fiber. It is the strongest fiber, making it an excellent choice for the heavy traffic of an active household or commercial facility. It's also the most durable of the synthetics. It is soil and mildew resistant and resilient, but is prone to static. Most nylon is treated with an anti-static treatment to reduce static. Continuous filament fibers minimize pilling and shedding.

There are two basic types of nylon, higher density molecular structure (HDM), and open molecular structure (OMS). Each provides different performance characteristics. For many years, HDM has been considered to be the premium nylon fiber, but technological advances in dyeing and twisting processes have narrowed the gap between the two. However, HDM remains the premium nylon fiber used today. If you are looking for value goods, type OMS nylon fibers offer a considerable benefit for the money.

Nylon fibers also can be branded or unbranded. For example, DuPont nylon is manufactured by DuPont and is a premium fiber. Many fibers that do not carry a brand name may be extruded by the carpet manufacturer (typically OMS) and can be considered value goods. Branded fibers traditionally cost more than value goods. This can be attributed to a number of factors including the shape of the fiber (soil hiding), topical treatments (stain inhibitors), minimum construction requirements (twist level, pile weight), and consistency of fiber quality.


Polypropylene is a long-chain synthetic polymer.


The common name for the type of polyester used in plastic soft drink bottles which is spun into carpet.


Imported from New Zealand, Australia and England. Wool is the fibrous growth from sheep. The fibers of wool are made of keratin, and have rough, scaly cuticles, which hook into one another when the fibers are spun into yarn.

Term Description


Fat, nubby yarns which lend a touch of luxury to a casual setting.

Cut Loop

Cut and loop carpets combine cut and uncut loops to make a pattern. Suited for both formal and contemporary environments.


Highly twisted yarns (sometimes kinked) to give a textured and contemporary look. Less likely to show vacuum marks or footprints.


Marked by a continuous uncut surface that resists crushing and matting. Used in rooms with lots of traffic and activity.


Similar to velvets but not quite as smooth. A soft texture is created by twisting fibers tightly, then straightening the yarn with heat. Retains foot and vacuum marks.


Bolder and more stylish than what you remember, the new shags often combine a variety of yarn thicknesses and textures to make a trendy and bold design statement in your home.


Each fiber is twisted differently. They are less likely to show vacuum marks or footprints than a true Saxony.


Smooth, soft, and elegant; creates a sheen that shows footprints, etc.

One of the most important decisions for your carpet purchase is the choice of carpet cushion. This is the foundation (think of it like the foundation of your house-you want a solid basis). Weaver Carpets, Inc. has always explained to their customers that an upgraded cushion makes your carpet last 20-30% longer. Quality NEVER costs as much as the money it saves!

Term Description

Rebond Cushion

Carpet cushion made of polyurethane foam scrap. The foam scrap is graded according to density, shredded and then rebonded with urethane adhesive, and then cut to the desired cushion thickness (bonded cushion).

Rubber Cushion

Made of foam or sponge. Used exclusively for in-floor heat systems. Better comfort for concrete, and can absorb some moisture from concrete floors.

Term Description


Although many people refer to loop style carpets as berbers, the term berber actually refers to flecks of color against a pale background, similar to the flecks of color that would be present naturally in wool. Berbers are also available in cut-piles and friezes.

Term Description

Square Feet

Area in flooring is measured in square feet, which is equal to the length (in feet) multiplied by the width (in feet).

Square Yards

Area in flooring is measured in square yards, which is equal to the length (in feet) multiplied by the width (in feet) divided by 9. There are nine square feet in one square yard.

Carpet Roll Sizes

Carpet roll are typically 12-foot wide but some goods come in 13-foot 2-inch and 15-foot widths.

Term Description


Bulked continuous filament. Continuous strands of synthetic fiber formed into yarn bundles.

Beck Dyeing

Tufted carpet (no backing) is run through a large stainless steel tank called a Dye Beck usually at 220� or higher to achieve the best dye process available.