Even though they are both plastic, installing fake grass is different from putting an outdoor rug on your patio. You’ll have to do a lot more digging and need to know how you can install the turf. Sub-base is the solution.
The sub-base for artificial grass is the mixture of materials that are placed directly beneath your fake turf. It provides a smooth surface that will support your lawn for many years if not decades. What you need to understand
Why Do I Need a Sub-Base for Artificial Turf?
Sub-bases are used to provide a solid base for your lawn. No matter how compact the soil is, it expands when wet and contracts as soon as it dries. Clay soils are particularly susceptible to this type of movement. Sub-base does not expand or contract. This results in a lawn that is smooth and free of wrinkles. Some sub-bases help to drain water, and prevent it from pooling.
The Best Artificial Grass Sub Base
What should you put under artificial turf? A mixture of gravel and sandy sub-bases is the best. Concrete, asphalt, or wood are all options, but CMB, Class 2 road base or decomposed stone is the most popular.
Crushed Miscellaneous Base (CMB)
The average cost of an artificial turf for a homeowner is typically upwards of $4000. Crushed miscellaneous (CMB) can be used as a sub-base to save some money. This sub-base is made up of a mix of sand and gravel with recycled concrete or asphalt. This is the most popular option for landscaping because it’s affordable and compacts well. It can be difficult to smooth and is non-porous so drainage can be a problem.
Class II Road Base
Class II road base, also known as CMB, is a similar product but must undergo rigorous testing to ensure it performs well under roads, sidewalks, and parking lots. This sub-base is more commonly used in commercial applications, such as golf courses and athletic fields. This is not a budget-friendly option, and it’s usually not needed for a backyard.
Decomposed Limestone or Granite Chippings
Natural derivatives of stone are formed when it erodes or weathers over time. Stone chippings are more expensive, but provide a smoother surface than CMB. The stone chippings are also better at drainage which is good for the long-term health of your garden (especially if it’s a pet-friendly artificial turf area).
How Much Artificial Grass Sub-Base Do I Need?
A local artificial grass company will be able to tell you how much sub-base is needed for your project. The company may recommend a laying layer, which is an extra layer of granite dust and sand over the sub-base. This will make the surface smoother.
The sub-base should generally be between two and four inches thick. Material is usually sold loose in truckloads, or in bags by the ton. The sub-base will determine the amount of material you need. You’ll need:
- CMB 1 to 2 Tons
- Decomposed granite – 1 to 1.5 yards
If you are unable to handle the weight and volume, you can hire a local stone and gravel company that will deliver it directly to your yard.
This post was written by a professional at NoCo Turf Co. NoCo Turf Co., based in Windsor, CO, is your synthetic grass store and synthetic turf installers near you. We proudly serve Fort Collins, Windsor, Johnstown, Berthoud, Erie, and surrounding areas. Specializing in artificial grass installation Windsor CO, we offer a wide range of services, from dog runs to residential installs and PGA-style putting and chipping greens. Additionally, we provide wholesale options for DIY enthusiasts and local landscapers. Whether you’re looking to enhance your home or business, NoCo Turf Co. delivers exceptional quality and expertise for all your synthetic grass needs. Choose NoCo Turf Co. as your artificial turf installer near you for a maintenance-free lawn you’ll love. Visit the Brick and mortar location today!
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