Depending on other features of your carpet a lower or higher face weight may be required.
Carpet face weight and density.
The units will be expressed in ounces per cubic yard.
The term refers to the weight of the carpet s fibers only not the backing material.
Face weight and density are two entirely different components when it comes to evaluating the quality of a carpet.
Guidelines for face weight.
Carpet face weight is defined as the weight of the carpet pile per square yard of carpet measured in ounces.
Most carpets have a face weight between 20 ounces and 100 ounces but the average face weight for a residential carpet is about 45 ounces.
Carpet face weight refers to the weight of the fiber found in 1 square yard of carpet.
Here is the formula.
Fiber face weight x 36 divided by pile height in decimal form pile density.
You want at least a 35 ounce face weight carpet for maximum durability.
To calculate carpet density you take the face weight and multiply it by 36 then divide your solution by the pile height of the carpet.
Factors that may affect the minimum face weight needed are how often the room is used the carpet s twist level and the carpet s density.
An olefin sample may weigh more than a nylon but it has entirely different performance qualities.
For example a 35 ounce face weight carpet with a half inch pile height would have a pile density rating of 2520 35 x 36 divided by 5 2520.
As an example within one product line the good level carpet has a face weight of 40 oz.
How important is face weight.
The standard is measured in ounces.
Fiber face weight is not the same as total carpet weight which includes the weight of the carpet backing and the fiber face weight.
Be wary of dealers who try to sell you on carpet density or stitches per inch spi.
Face weight makes a difference but only when comparing similar products.
Carpet density refers to how close together the fibers are tufted into the carpet backing.