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Stone Carpet Flooring: Seamless, Permeable Natural Stone Surfaces

TerraSystem stone carpet is a seamless surface of small natural stones bound with a solvent-free binder. For pool decks, terraces, balconies, garden paths, stairs, interiors and wet areas; outdoors it lets rainwater through, stays slip-resistant and keeps its colour. For quality and warranty, it is installed by TerraSystem's own technical crew.

Home/TerraSystem/Stone carpet
0.35–0.53 cm/swater infiltration (sports grounds require 0.01 cm/s)
5.2–14.4 MN/m²compressive strength, in the range of outdoor paving
8 + 4 systemsfloor/wall (SCS) and stair (STS) systems
Underfloor heatingcan be laid over it
Beige TerraSystem stone carpet around a swimming pool

What is stone carpet?

Stone carpet is a floor covering in which small, carefully selected natural stones, rounded by water, are bound with a solvent-free binder into a seamless surface. It is laid on floors, stairs and walls, indoors and outdoors.

Its open-pore structure lets rainwater drain into the ground outdoors, so no puddles form. Where needed, the pores can be sealed to make it liquid-tight. Stone carpet, epoxy stone flooring, pebble flooring and resin-bound gravel describe the same family of surfaces.

  • Seamless look, abrasion- and slip-resistant surface

  • The colour comes from the natural stone itself: it does not fade or wear off

  • Quick and easy to clean; dust settles in the pores

Where is stone carpet used?

There is a suitable SCS or STS system for every area.

01

Pool decks

A seamless surface that stays slip-resistant even with wet feet and feels pleasant barefoot. Open-pore systems do not let splash water stand.

02

Terraces and balconies

Open-pore SCS-001 and SCS-011 let water through; where the substrate must be protected, SCS-111 is liquid-tight.

03

Garden paths and entrances

Entrances, walkways and access routes with a surface that drains rainwater into the ground instead of forming puddles.

04

Stairs

STS systems cover treads and risers: slip-resistant, sound-absorbing, matched to the floor or as a deliberate contrast.

05

Interiors and offices

A seamless floor that is warm underfoot, sound-insulating and suitable for underfloor heating. Compared with textile coverings it does not stir up dust and is almost mite-free.

06

Bathrooms and wet areas

SCS-112: sealed pores, liquid-tight, combined with a waterproofing system.

07

Car wash areas

SCS-011 with increased stability for outdoor areas under higher mechanical load; drains with a suitable sub-base.

08

Walls

SCS-003 for decorative interior walls, SCS-013 for functional walls in sheltered outdoor and indoor areas.

Grey stone carpet pool surround and pool stepsSeamless grey stone carpet on a terrace and balconyStone carpet steps with aluminium edge profile

Why stone carpet?

  • Installed by TerraSystem's own technical crew: workmanship and warranty from the manufacturer

  • Seamless look and long service life

  • Abrasion-resistant, slip-inhibiting surface

  • Can be laid over underfloor heating

  • Quick and easy to clean

  • Warm underfoot and sound-insulating

  • Colourfast: the colour comes from the natural stone

  • Combines easily with other materials

  • Solvent-free binders

Close-up of a stone carpet surface with rounded natural stones

Stone carpet systems (SCS)

SystemApplicationProperties
SCS-001Outdoor areas and car wash facilities (floors)Open-pore, drainage with a suitable sub-base
SCS-011Outdoor areas and car washes with higher mechanical load (floors)Open-pore, drainage; partial sealing for stability
SCS-111Outdoor areas (floors)Sealed pores, no drainage, liquid-tight
SCS-002Indoor areas with light use (floors)Open-pore
SCS-012Indoor areas with heavier use (floors)Stability-optimised
SCS-112Wet indoor areas (floors)Sealed pores, liquid-tight, with waterproofing
SCS-003Indoor, decorative (walls)Open-pore
SCS-013Sheltered outdoor / indoor, functional (walls)Partial sealing

Stair systems (STS)

For renovating old staircases and for new builds, indoors and outdoors. The stairs can generally stay in use during installation. Binders are based on acrylic, polyurethane (PU) and epoxy (EP) resin; aluminium profiles protect the step edges.

SystemMaterialApplicationProperties
STS-100EPBasement and emergency exit stairs, access to utility roomsLiquid-tight, slip-resistant, chemical-resistant
STS-200PUOutdoor areas, swimming pool stairs (diving towers, slides)UV and weather-resistant, slip-resistant
STS-300EP, PU, colour chipsStairs indoors and outdoorsDecorative, UV-resistant, slip-resistant
STS-400EP, PU, quartzStairs indoors and outdoorsDecorative, UV-resistant, slip-resistant

Stair renovation: before and after

Old entrance stairs before stone carpet renovation
Before
Entrance stairs renovated with stone carpet
After renovation with TerraSystem stone carpet

Test results (LGA Bautechnik)

LGA Bautechnik measured the water infiltration and the compressive strength (DIN 18136) of outdoor stone carpet. Infiltration rate k* was 0.354–0.534 cm/s, many times the 0.01 cm/s required for sports grounds. According to the test report, the compressive strength is in the usual range for outdoor paving stones.

SampleGradingThicknessCompressive strength
Granite1–3 mm2 / 4 / 5 cm12.57 / 9.07 / 9.92 MN/m²
Granite2–4 mm2 / 4 / 5 cm14.40 / 8.21 / 9.22 MN/m²
Granite3–7 mm2 / 4 / 5 cm10.68 / 5.23 / 5.51 MN/m²
Coloured quartz2–3.5 mm2 / 4 / 5 cm12.18 / 6.81 / 5.85 MN/m²

Source: LGA Bautechnik test certificate BBV 0313264; values from Terra System GmbH technical documentation.

How a stone carpet project runs

  1. 1
    Enquiry

    Area (m²), location and existing substrate; photos are enough to start.

  2. 2
    Advice

    Choice of system: permeable or liquid-tight; colour and stone grading.

  3. 3
    Quote

    A quote based on area, sub-base and system.

  4. 4
    Installation

    For quality and warranty, TerraSystem's own technical crew installs the seamless surface; stairs can generally stay in use.

Installing outdoor stone carpet with a trowel

Your regional partner: Klar Chem

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.

Stone carpet: frequently asked questions

What is stone carpet?

A seamless surface of small, rounded natural stones bound with a solvent-free binder. It is laid on floors, stairs and walls, indoors and outdoors.

How much does stone carpet cost per m²?

The price depends on the area, the condition of the existing substrate, the system, the choice of stone and details such as stairs or edges. Send us dimensions and photos and we will prepare a concrete quote.

Is stone carpet permeable?

Yes. The open-pore systems SCS-001 and SCS-011 are permeable with a suitable sub-base; LGA measured 0.354–0.534 cm/s. If required, SCS-111 makes it liquid-tight.

Is it slippery around pools?

No. Stone carpet is a slip-inhibiting surface; for pool decks and pool stairs, UV- and weather-resistant systems are used.

Can stone carpet be used in bathrooms?

Yes. For wet indoor areas there is SCS-112: sealed pores, liquid-tight and combined with a waterproofing system.

Can it be laid over underfloor heating?

Yes, stone carpet can be laid over underfloor heating.

How long does stone carpet last?

Stone carpet is durable and abrasion-resistant, and because the colour comes from the natural stone it does not fade. For heavily used areas there are stability-optimised systems such as SCS-012 indoors and SCS-011 outdoors.

Who installs the stone carpet?

For quality control and an application warranty, TerraSystem's own technical crew carries out the installation on every TerraSystem project. Klar Chem is your contact for system selection, quotes and project coordination.

Can vehicles drive on it?

For roads, squares and car parks with vehicle traffic, TerraSystem's permeable paths and squares (PWS) systems are recommended; they stay dimensionally stable under heavy traffic.

Planning a stone carpet project?

Tell us the area, location and existing substrate; photos are enough. We will recommend the right system and send you a quote.

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