Optimize Your Artificial Grass Projects: The Definitive Guide to High-Performance Sub-Base Materials Stop overpaying for unstable installations. For corporate purchasing managers, facility directors, and landscape contractors, the right engineered sub-base
Stop overpaying for unstable installations. For corporate purchasing managers, facility directors, and landscape contractors, the right engineered sub-base is the critical, unseen foundation for durable, low-maintenance, and cost-effective artificial turf systems.
Get a Free Project Quote & Technical SpecsYou're specifying an artificial grass system to reduce long-term maintenance and water costs. But if the sub-base—the layer of aggregate beneath the turf—fails, your entire investment is at risk. Are you dealing with these common, expensive pain points?
The result? Callbacks, warranty claims, unhappy clients, and eroded profit margins—all traceable to the foundation. See the engineered solution below.
HEBEI XIONGYI (XY Grass) supplies precisely graded, washed, and certified sub-base aggregates designed specifically for artificial turf systems. We combine the power of China's industrial-scale supply chain with rigorous quality control to deliver consistent, high-performance materials at a cost that protects your margins.
Commercial Landscaping & Public Spaces: A stabilized, decomposed granite or crushed rock base provides a firm, weed-resistant foundation for high-traffic areas, ensuring the surface remains level for decades.
Residential Lawns & Play Areas: A free-draining gravel sub-layer topped with a compacted stone dust layer offers excellent permeability and a soft, secure surface for family use.
Sports & Recreational Fields: Engineered, multi-layer aggregate systems designed for critical shock absorption (G-max ratings) and surface drainage, meeting relevant sporting federation guidelines.
Rooftop & Balcony Installations: Lightweight, porous aggregate blends that minimize dead load while providing essential drainage away from the building structure.
| Parameter | Specification | Test Method / Standard | Benefit for Your Project |
|---|---|---|---|
| Primary Material | Crushed Granite | Visual & Petrographic Analysis | High hardness & durability for long-term stability |
| Gradation (Particle Size) | 0-5mm (0" - 3/16") | ASTM C136 Sieve Analysis | Optimal for tight compaction & smooth final surface |
| Clay & Fine Content | < 3% | ASTM D1140 | Prevents binding, ensures superior drainage |
| Proctor Density (Compaction) | > 95% Standard Proctor | ASTM D698 | Guarantees a solid, non-settling foundation |
| Permeability (Hydraulic Conductivity) | > 300 in/hr | ASTM D2434 (Modified) | Rapid surface water drainage, prevents pooling |
| pH Level | Neutral (6.5 - 7.5) | pH Meter Test | Will not corrode drainage systems or affect turf backing |
| Packaging | 1 Ton Jumbo Bags or 25kg Bags | Standard Industry | Easy site handling, reduces waste, precise inventory |
| Moisture Content (As Shipped) | < 5% by weight | ASTM D2216 | Consistent weight & volume, ready for installation |
Note: Specifications can be customized for OEM/ODM projects. Request full data sheets for all aggregate types.
A: Our standard Minimum Order Quantity is one 20ft or 40ft container. A 20ft container can hold approximately 22-24 metric tons of bagged aggregate. We offer mixed-container options, allowing you to combine aggregate with artificial grass rolls for full-project sourcing.
A: We implement a 3-stage quality control process: 1) Incoming raw material inspection, 2) In-process gradation checks during crushing and screening, and 3) Final pre-shipment sieve analysis. You can request the test report for your specific shipment lot.
A: Standard terms are 30% T/T deposit, 70% balance against copy of Bill of Lading. We ship FOB Tianjin, CIF, or agreed main port. We handle all export documentation and work with reputable freight forwarders to ensure high-speed delivery and transparent tracking.
A: Yes. Our OEM/ODM design service includes creating custom aggregate blends for specific drainage or stability needs. We can also bag under your private label with customized packaging weights.
A: The general rule is a 3-4 inch compacted depth. Our technical team can provide a simple calculator or assist you based on your project's square footage and required depth. Proper calculation prevents costly over-ordering or dangerous under-ordering.
artificial turf sub base artificial grass base material artificial grass underlay
A: Yes. We provide free physical samples (2-5kg) of our standard aggregates for your evaluation. For custom blends, a nominal sample fee may apply, which is often credited against your first bulk order.
"Game-changer for our supply business. We import artificial grass and sub-base into the Midwest USA. XY Grass is our one-stop shop. The quality of their granite dust is superior to local 'crusher run'—it's cleaner and compacts better. Our installer clients have noticed the difference, and our margins are healthier. Their logistics are reliable."
— Michael R., Owner, Landscape Supply Wholesaler, Ohio, USA
"Solved a critical drainage issue on a tight deadline. We had a hotel resort project where the soil was pure clay. The architect specified a specific drainage layer. XY Grass proposed and supplied a washed 3/8" gravel that performed perfectly. They air-freighted the initial samples to get approval, and the bulk shipment arrived just in time. Professional service."
— Sarah L., Project Procurement Manager, Commercial Developer, Singapore
"Consistency is key, and they deliver it. As a large installation company, we can't afford variability in our base materials. With XY Grass, every pallet of stone dust is the same. It has reduced our compaction time and eliminated callbacks due to settling. The quality assurance documents they provide are a bonus for our corporate clients who audit our work."
— David K., Operations Director, National Artificial Grass Installer, Australia
Limited-Time Offer for New Business Inquiries: Request a quote this month and receive a free, comprehensive sub-base specification guide + eligibility for free sample kits of our premium aggregates.
Your Risk-Free Next Steps:
Contact Our Technical Sales Team Now:
HEBEI XIONGYI RUBBER & PLASTIC PRODUCTS CO., LTD. (XY Grass)
Hope New District, Mengcun County, Cangzhou City, Hebei Province, China.
Your Partner in Engineered Artificial Grass Systems.
Liam Chen is a Senior Project Engineer with over 12 years of experience in geotechnical materials and synthetic turf systems at HEBEI XIONGYI (XY Grass). He specializes in designing and specifying foundational aggregates for international sports, landscaping, and commercial projects. Liam holds a degree in Civil Engineering and has directly consulted on over 300 artificial grass installations worldwide, ensuring each sub-base system meets exacting performance and longevity standards. His insights bridge the gap between manufacturing precision and on-site application reality.
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Trusted by Global Installers & Facility Managers
Materials Supplied To: Landscape Contractors (USA), Sports Facility Developers (UK), Municipal Authorities (AUS), Hotel Chains (UAE), E-commerce Wholesalers (EU).
Compliance & Quality Assurance
Our production and sourcing adhere to international standards, ensuring reliable performance and smooth importation. Our factory holds ISO 9001:2015 certification for quality management. Materials are sourced and processed to be compliant with general safety and environmental directives such as RoHS. All shipments are accompanied by Mill Test Certificates or Certificates of Analysis.