OZY GravelGrid Gravel Stabilization Mat 160x120cm white

Large-format gravel surface without ruts

The GravelGrid gravel stabilization mat, measuring 160x120 cm with a height of 30 mm, is a professional system designed for mechanically securing aggregate. Thanks to its oversized dimensions, a single piece covers an area of up to 1.92 m², making it the largest single-piece mat on the market. The hexagonal cell structure with a diameter of 43 mm prevents lateral shifting of gravel under load. The integrated thermally bonded geotextile allows rainwater to pass through while preventing weed growth and separating the gravel from the subsoil.

Main advantages of the GravelGrid 1.92 m² mat

• Largest format on the market: A size of 1600 x 1200 mm minimizes the number of joints, increases overall stability and significantly speeds up the installation process.
• Certified strength: According to ISO 844, it withstands a pressure of 90 t/m² when unfilled and up to 400 t/m² after final backfilling with aggregate.
• Torsional stability in turns: The reinforced rib wall thickness (0.8 to 1.4 mm) successfully absorbs shear forces caused by vehicle wheels turning.
• Thermally non-destructive bonding: The underlying textile is fully welded to the base of the mat using hot air, eliminating the risk of peeling off.
• Barrier-free profile: The reinforced surface meets PMR certification conditions for smooth movement of wheelchairs, strollers and bicycles.

How to properly install the GravelGrid gravel mat?

To achieve the declared load capacity of 400 t/m², precise stabilization of the lower layers is essential. Lay the mats with the polyester geotextile facing downward directly onto the prepared subsoil.

Expert recommendation: Always lay GravelGrid panels in a staggered pattern (bonded), with the free edges of the geotextile overlapping by approximately 10 cm. Use a standard angle grinder or circular saw to precisely cut the material and shape curves around curbs.

Beware of damage: Before the final gravel backfilling, never drive vehicles over the empty plastic structure to avoid deforming the cell ribs.

What subbase and amount of gravel will you need?

For traffic areas up to 3.5 t, create a 25 cm load-bearing subbase of crushed aggregate (0–32 mm) and a 5 cm fine leveling layer (2–4 mm). To fill the cells, you will need exactly 65 kg/m² of decorative gravel with a fraction of 4–8 mm or 8–11 mm. The fill should exceed the top edge of the rib system by 1 to 2 cm.

Solution for uncut edges with robotic mowers

By creating a reinforced gravel strip using GravelGrid mats, you ensure a stable path for the perimeter movement of the equipment. A robotic mower can drive with one wheel off the lawn on a solid surface, allowing it to cut grass right up to the absolute edge without the need for additional manual trimming.

1. Excavation and soil reinforcement

Remove the turf and topsoil layer from the edge line of the property. A shallow excavation is sufficient for robotic mower traffic, into which a 5 cm thick leveling layer of crushed aggregate (fraction 2–4 mm) is placed. The subbase is then thoroughly compacted.

2. Laying and cutting cells to size

The panels are laid on their side with the geotextile overlapping so that the joints overlap each other by approximately 10 cm. Thanks to the high flexibility of the HDPE material, the panels perfectly follow even slight terrain irregularities. Adjusting the length and rounding curves is done quickly using a standard angle grinder.

3. Installation against curbs and final gravel backfilling

The panels are stabilized against installed garden curbs, which should ideally exceed the top edge of the mat by 2 cm. The cells are then evenly filled with decorative gravel with a fraction of 4–8 mm or 8–11 mm. The initial excess of gravel (1–2 cm above the level of the cells) will settle level with the edge after a few weeks.

Technical data and material composition

GravelGrid is a certified industrial product manufactured through precise high-pressure plastic injection molding, which guarantees the same mechanical properties for every piece.

• Mat dimensions: 1600 x 1200 mm (net area of 1.92 m² in one piece)
• Total profile height: 30 mm
• Cell geometry: Regular hexagon with a diameter of 43 mm
• Material purity: 100% pure high-density polyethylene (HDPE 0.95 g/cm³)
• Textile areal weight: Non-woven polyester 50 g/m² with a tensile strength of 65 N / 5 cm
• Filling material consumption: On average 65 kg of decorative gravel per 1 m²
• Weight of empty panel: 3 kg (transport volumetric weight 5 kg)
• Resistance: Long-term UV stability and frost resistance down to -20 °C

Frequently Asked Questions (FAQ) - GravelGrid 160x120cm