The TerraSystem tree grate system (TS-TGS) is a drainable, seamless surface around the tree trunk. It lets rain and irrigation water reach the roots, unseals the ground and protects the tree pit, while staying walkable and easy to clean. Shape, colour and grain are adapted to each site; installed by TerraSystem's own technical crew.
Instead of a cast-iron grate or loose gravel, the tree pit is covered with decorative chippings bound with a solvent-free resin. The open-pore surface lets water through, and the area around the trunk is no longer sealed.
The shape is made to measure for the site and the tree species, with different edge profiles. The surface can be made from colour quartz, glass or natural chippings, so it matches the surrounding paving.
Permanent watering of the tree while the ground is unsealed
For new plantings and existing trees; the root run is taken into account
Fully recyclable, environmentally friendly materials
Wherever trees stand in paved areas.
Tree pits in pavements stay walkable and do not form trip edges.
Seamless surfaces in the colour of the surrounding paving or as a contrast.
Tree pits between parking bays.
Robust, easy-to-clean surrounds in high-footfall areas.
Water reaches the roots: rain and irrigation water drain through
Unseals the ground around the tree
Robust protection against environmental influences
Easy to install, easy to clean and maintain
Any shape: round, square or free-form
Many colours and grains: colour quartz, glass or natural chippings
Solvent-free, odour-neutral binders
Installed by TerraSystem's own technical crew
Two binders are available: the UV-stable 1-component TS 01 on a flexibilised polyurethane basis, or the 2-component TS 02 on an epoxy basis. With TS 02 a slight colour change must be expected under UV exposure.
| Item | Value |
|---|---|
| Sub-base excavation | 15–20 cm |
| Sub-base | chippings 8–11 mm, filled and compacted to approx. 2 cm below the final level |
| Decorative surface grain | 2–3 mm or 4–6 mm |
| Surface layer thickness | 2–4 cm |
| Decorative material | 30–60 kg/m² (depending on grain, at 2–4 cm) |
| Binder | TS 01 (PU, UV-stable) or TS 02 (EP) |
| Binder consumption | 1.5–2.0 kg/m² (at 2–4 cm) |
| Final sealing | 350–500 g/m² binder over the compacted surface |
Source: Terra System GmbH system data sheet TS-TGS (TSysDaB-002).
The tree pit is excavated to 15–20 cm, taking the roots into account.
8–11 mm chippings are filled in and compacted.
Binder and decorative grain are mixed, laid 2–4 cm thick, levelled and compacted.
The surface is finally coated with 350–500 g/m² binder.
Klar Chem is the authorized distributor of Terra System GmbH in 24 countries. We are your contact for system selection, technical documents, samples and quotes. On every project the installation is carried out by TerraSystem's own technical crew, so workmanship and warranty come from the manufacturer.
A seamless, open-pore surface of bound chippings around a tree trunk. Water drains through it to the roots and the ground stays unsealed.
Yes, for new plantings and existing trees. The root run is always taken into account.
Colour quartz, glass or natural chippings in many colours and grains, so the surface can match or contrast with the paving.
Outdoors the UV-stable PU binder TS 01 is recommended. With the epoxy binder TS 02 a slight colour change under UV must be expected.
It depends on the number, size and shape of the tree pits and the chosen surface. Send us the number and dimensions and we will prepare a quote.
TerraSystem's own technical crew on every project. Klar Chem is your contact for selection, quotes and coordination.
Tell us the number, size and shape of the tree pits and the surrounding paving. We will recommend a surface and send you a quote.
