Carpet Specifications

Updated March 23, 2017

Carpet specifications represent the different grades, materials, types of stitching and quality of product that makes a carpet what it is. Some carpets demand high prices per square foot due to their specifications. Others are intentionally designed for industrial use and would never find a place in residential structure. Whatever the case, the specifications make the difference between types of carpet and how they can fit in your home or business.

Material Manufacturing

The fibre type dictates how a carpet will feel to the touch. How homeowners feel tends to be important as many will want to lay on the carpet, and their kids will play on it. Polyester is a tougher fibre material and resists stains better. If thick enough, it can also age longer than Nylon and still retain its quality.

Material Function

The density of the carpet represents how thick the carpet weave and strands are. The thicker the carpet, the firmer and deeper it feels when walking on it. The density is measured by ounces per square foot. The larger the measurement, the better the quality is.

The pile height describes how high the carpet strands stand off of the basic carpet mat they are woven into. The thicker the pile height is, the more lush a carpet will appear. However, pile height will not add or improve durability unless the strands are short in length and pack together tightly.

The twists and stitches per inch dictate the durability of the carpet. More stitches increase the resiliency factor of a carpet, which gives it the ability to bounce back.


The durability of a carpet will be a key factor for many choosing one carpet over another. The factor is measured as a durability rating. While replacing a carpet in a room or house is not very expensive, people rarely go through the hassle. Many homeowners won't change a carpet until at least five to eight years have passed with the current one. As a result, lasting ability of a carpet becomes important.

Durability for marketing is measured under an industry standard called Performance Appearance Retention Rating. This is a factory testing standard involving walk-testing the material under thousands of hours of aggressive wear to measure when the carpet will show wear and failure.

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About the Author

Since 2009 Tom Lutzenberger has written for various websites, covering topics ranging from finance to automotive history. Lutzenberger works in public finance and policy and consults on a variety of analytical services. His education includes a Bachelor of Arts in English and political science from Saint Mary's College and a Master of Business Administration in finance and marketing from California State University, Sacramento.