Carpet Density Formula

Carpet face weight and durability.

Carpet density formula. A carpet s density although many people use density and a related but. Carpet rule 3. We explain what those are and why they matter. Despite a common misconception carpet density and carpet face weight are not interchangeable terms that mean the same thing although face weight is one factor used to calculate density.

It is expressed in ounces per cubic yard in the formula. Divide by carpet pile height 3. Equals density measured in ounces per cubic yard fiber height is the length of each carpet fiber from the backing to the tip of the strand itself. Don t confuse density and twist with face weight which is the amount of fiber measured in ounces per square yard as opposed to total weight which includes the weight of the carpet backing.

Face weight and density are two entirely different components when it comes to evaluating the. Here is the formula. The longer higher pile the carpet the lower the density rating. To measure carpet density the following formula is used.

Carpet doesn t have to be dense to be durable as long as it has a high twist level and vice versa. The weight of pile yarn in a unit volume of carpet. We can now use rule 3 to determine the pile height in decimals which can quickly be converted into a fraction of an inch using the chart. The most important takeaway is density rating eliminates the flaw of face weight.

The equation isn t important but breaking it down reveals a couple important takeaways about density rating. Fiber face weight x 36 divided by pile height in decimal form pile density. A high density carpet provides certain advantages compared to a low density carpet. Average pilem density factors for commercial carpets range from 4200 to 8000.

In other words if you measure the carpet face weight which is given in ounces multiply it by 36 and divide it by the pile height the height of the carpet fiber measured in fractions of an inch you ll get the density which is given in oz cubic yard. Pile density is the key to having a carpet retain its like new appearance longer. The best level weighs in at. Density pile yarn weight in ounces per square yard times 36 divided by pile thickness or pile height in inches.

The density of a carpet is one of many factors that determine a carpet s quality and overall performance. Carpet face weight multiplied by 36 2. There are many factors that tie into the quality and performance of a carpet whether you re buying it for residential or commercial purposes. 36 density x face weight pile height e g 36 2160 x 30 0 499998 0 5 in this example what we know is that the pile density is 2160 and the face weight is 30 ounces.

In the formula above we represent the pile height as a fraction of. A higher face weight means more yarn says grable and more yarn makes for a longer lasting product as an example within one product line the good level carpet has a face weight of 40 oz. To calculate carpet density use the formula of face weight x 36 pile height.