Drainage underlay for artificial grass, shock-absorbing flooring and resin bound surfaces
Stabilise your synthetic surfaces with a high-performance drainage underlay
Nidagreen and Nidasport cellular panels provide a technical drainage underlay for all synthetic surface types: artificial grass, shock-absorbing playground flooring and resin bound gravel. Their polypropylene honeycomb structure temporarily stores rainwater and releases it gradually, preventing any pooling beneath the surface. Lightweight and easy to handle on site, both panels can be installed on compacted ground, a concrete slab or a waterproofed flat roof.
Our products for synthetic surface drainage
Nidagreen
Nidagreen is an extruded polypropylene panel, covered on both sides with a non-woven geotextile (PET 25 g/m²). The honeycomb panel is specifically designed to be installed between the synthetic surface layer and the ground (synthetic turf, shock-absorbing poured layers, resin-bound gravel, etc.).
Nidasport
These polypropylene honeycomb panels are designed to accommodate a synthetic turf system, with or without an intermediate shock-absorbing layer, for sports field applications. They enable the creation of a draining, flat and porous surface suitable for synthetic turf sports flooring.
Product comparison
Type
Thickness
Water storage capacity
Applications
Material
Flat roof installation
Nidagreen
21 mm or 28 mm
21mm = 18L/m2 ; 28 mm=24L/m2
Terraces, courtyards, public spaces, flat roofs
PP honeycomb cells + non-woven geotextile
yes
Nidasport
40 mm or 60 mm
40mm = 34L/m2 ; 60mm = 51L/m2
Synthetic sports pitches, technical zones
PP honeycomb cells + non-woven geotextile
yes
Related case studies
See all our case studies
17 Nov. 2025
17 Nov. 2025
Key benefits
Optimised drainage
The honeycomb cells store rainwater temporarily and release it gradually — no pooling, no waterlogging beneath the synthetic surface finish.
Versatile applications
Suitable for artificial grass, resin bound gravel and shock-absorbing surfaces, including flat roof and sealed slab installations.
Fast, easy installation
Lightweight panels, easy to cut on site and quick to assemble — on compacted ground or a waterproofed slab — with no specialist equipment required.
Frequently asked questions
What is the difference between Nidagreen and Nidasport?
Both products work on the same free-draining cellular principle. Nidagreen is designed for landscaping applications — terraces, courtyards and public spaces — whilst Nidasport is engineered specifically for synthetic sports pitches, where higher water attenuation capacity and a precisely flat sub-base are required.
How does the Nidagreen / Nidasport drainage panel work?
The honeycomb structure stores rainwater temporarily within its cells, then releases it gradually. This prevents any pooling beneath the surface finish and ensures continuous, even drainage across the sub-base.
Which surface types can be installed on top?
Both panels support artificial grass, shock-absorbing playground surfaces and resin bound gravel. They maintain the structural stability of the surface finish whilst preserving its drainage performance.
Can Nidagreen be installed on a flat roof or concrete slab?
Yes. The panels are laid directly onto a waterproofed slab or flat roof, creating a stable, free-draining and lightweight surface build-up. To ensure effective horizontal drainage of water beneath the panels, a Geoflow three-dimensional drainage mat should be installed first — a product specifically designed for this application. The complete system enables a terrace, garden or technical area to be created without compromising the waterproofing layer, whilst ensuring optimal water evacuation.
Become a distributor
Become a distributor of Nidagreen and Nidasport drainage solutions, trusted by sports construction and outdoor landscaping professionals across Europe. Our products are manufactured in France, carefully packaged and available in mixed orders to suit your requirements. We offer flexible order thresholds, optimised logistics and dedicated commercial support to help you build your product range. Give your clients reliable, versatile drainage underlays — recognised for their performance and long service life.
Proven technical solutions
Our products are developed to meet real on-site demands: performance, reliability and durability are at the core of every solution.
Committed to lower environmental impact
At Nidaplast, we design recyclable products incorporating recycled materials, produced through a controlled industrial process with a low carbon footprint.
Tailored support
Technical experts, design engineers and commercial teams — our people support professionals throughout their projects, across France and internationally.
Nidaplast manufactures two ranges of cellular drainage panels for synthetic surface underlays, produced in France (Hauts-de-France) since 1984.
Products:
– Nidagreen: extruded PP panel + non-woven PET geotextile (both faces), 21 mm (18 L/m²) or 28 mm (24 L/m²).
Applications: terraces, courtyards, public spaces, flat roofs.
– Nidasport: PP panel + geotextile, 40 mm (34 L/m²) or 60 mm (51 L/m²).
Applications: synthetic sports pitches, technical zones.
Compatible surface finishes: artificial grass, shock-absorbing playground flooring, resin bound gravel.
Installation: on compacted ground, concrete slab or waterproofed flat roof (with Geoflow drainage mat for horizontal water evacuation).
Structure: PP honeycomb cells, integrated geotextile, 100% permeable.
Resistance: frost, UV, static and dynamic loading.
Certifications: ISO 9001, ISO 14001, ISO 45001, French Fab, Coq Bleu, Coq Vert, EcoVadis Bronze.
URL: https://www.nidaplast.com/en/environment/artificial-grass-drainage-underlay/
