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Terms & Definitions for Artificial Grass

Aug 3, 2018 1:17:50 PM / by Cheryl Robertson

Backyard retreat_TW

If you are considering installing artificial grass it's important to be armed with information and knowledge so you can better compare quotations and ask the right questions to ensure that you're getting the best artificial grass for your application Below are some common terminology that you may encounter.

 

Pile height: The height of the artificial grass blade measured from the bottom of the backing to the top of the uncurled grass blade

Face weight: The weight of the yarn used in an artificial grass product quoted in ounces per square yard. Face weight is a function of the density (i.e. number of stitches per sq. yard), the pile height, and of the decitex (DTEX) of the yarn (i.e. the thickness & width of the individual grass blade). If you increase the pile height or stitch rate, or reduce the gauge – you’ll increase the face weight. If you use a thicker, heavier fiber for your grass blade you’ll also increase the face weight of the product.

Tuft bind: a measurement of how hard it is to pull the fibers out. Lazy Lawn takes pride in providing only grasses where it’s nearly impossible to pull out grass blades from the top.

Artificial grass backing: Artificial grass backing consists of two components – the primary and the secondary backing. When comparing artificial grass backings people often only focus on the secondary back or the “glue” but in fact both components are important to the life-cycle of an artificial grass product.

Secondary backing: This is the glue that secures the artificial grass blades or yarn to the primary backing. The quality and durability of the secondary backing determines the tuft bind of an artificial grass product.  It’s also important that the glue has viscosity to it, many manufactures simply dump more glue to the backing; which cracks in cold weather defeating it’s purpose altogether.

Primary backing: This is the fabric that the artificial grass is tufted through – similar to multiple layers of a commercial grade weed barrier. The quality and durability of a primary backing determines the dimensional stability of an artificial grass, essentially how the back preforms during the expansion and contraction from harsh winter to summer weather.

Total weight: The sum of the face weight, weight of the primary backing, and the weight of the secondary backing.

Gauge: Artificial grass carpet is formed by stitching together the individual blades of grass in rows onto a backing. Gauge is the distance or width between those rows. The measurements are typically 3/8”, 1/2″, or 5/8” for artificial landscaping grasses, and are typically tighter for putting greens (3/16” or 5/32”) and wider for artificial sports fields (up to 3/4”). Generally speaking, the higher the stitch rate the more infill can be added.

Stitch rate: This measures the number of blades or tufts per square inch and similar to gauge it is also a measurement of the density of grass blades. Stich rate is typically measured in the number of stitches in a 3 inch by 3 inch piece of turf. Typically, the higher the stich rate , the heavier and higher quality the grass. 

Square footage: This measurement is used to indicate the area of an object or space. Because artificial grass is sold by the square foot (15ft wide) and is typically cut as a rectangle, this measurement is calculated as the length x width.  Assuming your lawn was 13.50’ x 22’, for 297 square feet, we’d require a piece of artificial grass that is 15’ x 22, for 330 to cover your area with no seams. Generally speaking, a project has about 10% of usable scrapes.

 

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Topics: Synthetic grass, artificial grass, Technical information about artificial grass

Cheryl Robertson

Written by Cheryl Robertson