You have just purchased grass paver grids. This is the solution to combine living grass with vehicular or pedestrian traffic: the plastic grid protects the soil from compaction and the roots from direct pressure, while the grass grows freely through the cells. With this grid, you can have green parking lots, home access roads, event areas, and garden paths that maintain a natural aesthetic without suffering the damage that a car or frequent traffic normally causes.
Product Specifications
Modular high-density recycled polyethylene (HDPE) grid with hexagonal cells that assemble together using a side interlocking system. The cells hold the substrate and allow grass to grow, while the plastic structure distributes the traffic load, preventing soil compaction. Approximate load resistance of 200-250 t/m² with filled cells, sufficient for light vehicles and standard trucks.
| Specification | Standard Grid |
|---|---|
| SKU | 684257 |
| Dimensions | 50 × 50 × 4 cm (20 × 20 × 2 in) |
| Material | Recycled HDPE |
| Package | 8 grids (2 m²) |
| Application | Green parking lots, access roads, grass paths |
Step-by-step installation guide
Correct installation determines whether your green parking lot lasts a decade or sinks after a few months. The critical factor is a properly sized and compacted support base.
Excavate the base
Excavate the area to a minimum depth of 25-30 cm (10-12 in) for pedestrian or light use, or 40-50 cm (16-20 in) for vehicular traffic. Compact the bottom with a vibrating plate. Correct excavation is the first condition: a grid placed on soft ground will sink with the first vehicle.
Build the granular base
Place a layer of coarse gravel (40-60 mm) 15-25 cm thick, compacted in lifts, then a layer of fine gravel or coarse sand 5-10 cm thick for leveling. Use polypropylene geotextile between the natural ground and the granular base to prevent mixing and migration of fines. Finish with a 2-3 cm layer of leveled fine sand, which will receive the grids.
Place and connect the grids
Start from one corner and place the grids side by side. The side interlocking system connects the grids, forming a continuous surface that acts as a single unit under loads. Check leveling with a long straightedge: the top surface of the grids should be at the same height as the planned grass. For large or curved areas, cut grids with a hand saw.
Fill the cells with substrate
Fill each hexagonal cell with quality substrate mixed with coconut fiber to improve drainage and aeration. Recommended mix: 60% garden soil + 30% coconut fiber + 10% sand. Fill up to just the top edge of the cell; with the first watering, the substrate will settle 1-2 cm, at which point refill with another layer until flush.
Sow grass or lay sod
Sow coated Bermuda or Paspalum seeds over the substrate at the correct rate and water. A faster alternative: lay pre-grown sod on top of the grids and press to settle. In either case, avoid heavy traffic for the first 6-8 weeks to allow the grass to root deeply through the cells and establish itself.
For green parking lots in the Dominican climate, prefer aggressive Paspalum or Bermuda on the grids: both resist vehicle trampling well once established. Avoid delicate ornamental grasses (fine Zoysia, perennial ryegrass) which suffer from traffic. The key to a durable green parking lot is: a well-sized base, aggressive grass rooted deeply, and rotation of parking spots (avoiding the same wheels in the same spot always).
Do not skip the granular base thinking that the grids "will hold up on their own." The plastic only distributes the load, but the load still goes down to the subsoil. On uncompacted natural soil, the grids will sink 2-5 cm with each vehicle, forming undulations and breaking the flat surface. The investment in a well-sized granular base is what differentiates a durable green parking lot from a surface destroyed in six months.
How many grids and what base?
If you are dimensioning a green parking lot, access road, or pedestrian area and are unsure how many grids you need and what base is suitable for your type of traffic, ask the virtual assistant. It will calculate it for you and guide you on the type of base.
Complementary products
A complete grass paver installation combines several products:
Paspalum grass seeds are the option for green parking lots in coastal areas; alternatively, Bermuda grass for inland areas. Coconut fiber substrate dramatically improves the cell filling mixture, providing essential aeration and water retention for deep grass rooting. The drainage cell plate is the sister version for rooftop gardens or green roofs: both products share a modular structure but solve different problems.
Maintenance and care
Once properly installed, grass pavers present few problems but require attention to the grass growing on them:
- Grid storage: in a dry, shaded area before installation. Stabilized HDPE lasts decades, but prolonged storage in the sun degrades the plastic before installation.
- Grass watering: grass in cells requires more watering than traditional grass because the substrate is shallower. Frequent, short watering (not saturation) maintains moisture in the root zone.
- Regular mowing: cut the grass to the standard height for the species (3-5 cm) without the mower touching the grids. A blade in contact with the grid will dull and break a piece.
- Periodic inspection: every 6 months, remove some grass in a specific cell and check the state of the filling. If the substrate has settled more than 2-3 cm, refill with a new mixture.
- Grid lifespan: 20-25 years under typical Dominican conditions. The limit is usually the grass, not the grids.
Frequently Asked Questions
Can it withstand the weight of a car or van?
Yes, the grids are designed for light and commercial vehicle traffic (up to about 4-5 tons per axle) over a well-dimensioned granular base. For heavy truck traffic or industrial vehicles (more than 8 tons per axle), use specific higher-resistance systems or traditional rigid pavement. Check the intended loads before choosing.
Can I combine areas with grids and areas without?
Yes, the most frequent combination: ornamental garden edges without grids, passage or parking areas with grids, all covered with the same lawn. The aesthetic transition is excellent because the lawn is continuous. Use concrete or plastic curbs to limit the paved area and prevent the outer lawn from invading the cells with invasive roots.
What do I do if a grid breaks?
A broken grid is replaced individually: remove the grass from the affected cells, disconnect the broken grid from the adjoining ones, install a new grid, fill cells with substrate and reseed or lay small sod. The modularity of the system allows for targeted maintenance without major works.