Q: What are different types of Carpets? What are “Cut Pile” and “Loop Pile” Carpets?

The basic ingredient of a carpet is fiber. Around 97% carpets is made from synthetic fibers. The type and construction of a fiber will determine how well the carpet will perform.

Depending on the type of carpet fibers, carpets can be classified into 5 types:

  • Nylon: long lasting & most common.
  • Polyester: Luxurious, soft & has good colour and could be cleaned easily.
  • Acrylic: Looks & feels like wool. Low static level and is moisture resistant.
  • Wool: Famous for luxury & performance – more expensive than synthetic.
  • Olefin or Polypropylene: The next best-seller after nylon. They are color fast, strong mildew & moisture resistant and easy to clean – suitable for high traffic areas.

Likewise, depending upon how the fibers are used to create a carpet, carpets can be classified into 3 main types:

  • Cut-pile: The woven fibers are cut – the cut ends are visible on the carpet surface.

Cut Pile Carpet

  • Cut Pile carpets can further be of many types:
    • Saxony carpets are tightly twisted cut piles that are heat-set straight.
    • Frieze (pronounced free-say) are highly, tightly twisted cut pile carpets with a dense, low pile surface.
    • In Twisted carpets, the yarn is tightly twisted to give a defined, textured surface and heat set.
    • Velvet Carpets (or ‘plush’) have a sheared surface pile giving a smooth, soft, luxurious finish.
    • In Cut and Loop Carpets, fibres that have been cut are combined with ones that have been looped. This gives great scope for creating surface textures and patterns in both solid and multiple colours.
    • In Shag Pile or Shrugs, the pile can be up to 50mm long and casual in texture, creating a truly deep, luxurious feel. The surface flattens easily and can lack durability.
  • Loop-Pile: The fibers are looped. The looped ends are visible on the carpet surface. All other things remaining the same, loop-pile carpets last longer than cut-pile carpets. These, however, require more maintenance.

Loop Pile Carpet

  • Loop Pile carpets can further be of many types:
    • Level loop pile is made by weaving even loops of yarn into carpet backing at both ends.  This type of carpet is very durable and track resistant as well as having a natural, casual appearance even. Higher loops create a more luxurious appearance.  Level loop piles with short and densely packed loops are easy to clean and offer a good blend of luxury and practicality.  This type of carpet is ideal for high traffic areas. The loops can be vulnerable to pulling from pets claws etc.
    • Multi-level loop pile is like level loop pile except for the loop heights varying. This creates an informal, textured appearance.  This type can hide marks and stains and is therefore ideal for high traffic areas. The loops can be vulnerable to pulling from pets claws etc.
    • Berber carpets are named after a handmade bulky wool carpet made by the Berber tribes of North Africa and Asia. The loops are made from thick or bulky yarns of wool, nylon, polypropylene or a blend of these fibers providing high durability and a luxurious cushioned effect underfoot. They can be either level loop or multi-level loop. The loops can be vulnerable to pulling from pets claws etc.
  • Woven Carpets: Woven carpets belong to the category of finest carpets in the market. In these, the fibers are woven to get various textures and patterns.

Woven Carpet

  • Woven carpets can further be 3 types:
    • Axminister
    • Wilton
    • Flat-weave

Q: What are different types of Carpets? What are “Cut Pile” and “Loop Pile” Carpets?

Using carpets has many advantages:

  • A carpet has a positive effect on well-being and health.
  • Improves acoustic properties within a facility.
  • Reduces noise pollution through sound absorption.
  • Improves indoor air quality.
  • Improve walking comfort – carpets are easy on spine and feet.
  • They have an elastic effect when stepping on them.
  • They are easy to care for and maintain.


Q: Why should you maintain your Carpets?

Carpet maintenance is very important for a number of reasons:

  • Clean carpets are healthy carpets.
  • Well maintained carpets make the entire area look inviting.
  • Clean carpets improve the productivity of people.
  • Clean carpets also improve indoor air quality.
  • Clean carpets also improve the life of your HVAC Systems (Heating, Ventilation and Air Conditioning Systems). Here is a comparison of the air-conditioning ducts in an area with well maintained carpets, versus those in an area with unclean carpets. You can notice how unclean carpets can cause AC ducts to choke. Frequently cleaned carpets mean lower cleaning costs for your AC ducts and vents.


Q: What are different Classifications of Carpet Maintenance?

These are:

  • Preventative
  • Daily
  • Interim
  • Scheduled


Q: What is Preventive Maintenance? How is it carried out?


  • Soil is everywhere. Stopping it from entering the building is the key to a successful carpet program, as industry studies estimate that as much as 94% of the soil in any given facility was tracked in from the outside.
  • The more soil we stop from entering the building, the less we have to clean.
  • An upright vac with roller brushes for deep agitation does the best job of removing deep- down dirt in comparison with the conventional tank vacuum as the carpet tool provided with the machine is not designed to agitate/comb.


Q: What is Maintenance Cleaning? What steps does it include?


  • Definition: Maintenance Cleaning means repetitive cleaning tasks at certain time intervals (e.g., daily vacuuming of Passage Areas).
  • It includes regular cleaning of carpets and upholstery.
  • The cleaning frequency complies with the degree of soiling of the area to be cleaned.
  • Maintenance Cleaning Includes:
    • Vacuuming
    • Roller Brush Type Vacuuming
    • Stains removal


Q: What is Intermediate Cleaning? What steps does it include?


  • Definition: Intermediate Cleaning means Intensive cleaning with the aim of delaying deep cleaning as much as possible, while improving appearance.
  • Intermediate cleaning is carried out when the surface is partly and superficially soiled, such as hallways and frequently used areas.
  • Carrying out intermediate cleaning is recommended every once in a while (1x/month, 1x every 3 months etc.).
  • Intermediate Cleaning Includes:
    • Roller Brush Cleaning
    • Encapsulation


Q: What is Bonnet Cleaning? Is Bonnet Cleaning Effective?

There are many names contractors use for Bonnet Cleaning – Spin pad, absorbent pad, tip cleaning or carbonated shampoo cleaning.

Essentially, Bonnet Cleaning is a minimum moisture carpet cleaning method. It essentially consists of a cotton, rayon and/or polypropylene pad and a rotary shampoo machine. This process only cleans the face fibers; it does not get the deep down cleaning results from processes such as shampooing and hot water extraction.

Bonnet Cleaning can be effective if done correctly. If however, it is done incorrectly, on the wrong carpet fibers, it may damage carpets.

Read more about Bonnet Cleaning at Cleanlink.com.


Q: What is CRI Recommendations for Top Carpet Manufacturing Brands?

CRI recommends the following for these top Carpet Brands of the world:

Interface, Inc.

  • Phone: (800) 336-0225
  • Website: interface.com
  • Deep Cleaning Method: Dry Compound Extraction/Hot Water Extraction
  • Recommended Service Providers: Contact Manufacturer

Milliken & Company

Mohawk Industries, Inc.

Shaw Industries, Inc.

Tai Ping Carpets Americas, Inc.

Tandus Centiva Inc.