
Stone Carpet for Stairs: Stair Systems Indoors and Outdoors
Terra System covers treads and risers with stone carpet and quartz surfaces – for renovating old staircases and for new builds, indoors and outdoors.
Request a stair quoteThe STS systems give treads and risers a distinctive look. The surfaces are functional – slip-resistant and sound-absorbing – and decorative thanks to the wide range of materials and colours. Match the stairs to the floor or set deliberate contrasts, so entrances and stairwells get a character of their own.
Why stone carpet on stairs?
- Seamless look and long service life
- Slip-resistant and abrasion-resistant
- Sound-absorbing – quieter stairwells
- Quick and easy to clean
- Matched to the floor or designed as a contrast
- Stairs can generally stay in use during installation

Renovation and new build
Terra System's stair systems suit any kind of stair renovation or new construction. Indoors and outdoors, the right formulation does more than look good: the surface also protects the structure from the weather.
Stairs can generally stay in use while the surface is installed, so closures usually do not need to be planned – an advantage for stairwells in residential and commercial buildings.
Materials and technology
Depending on the requirements, we use cost-effective coatings or high-quality bound quartz surfaces. Binders are liquid plastics based on acrylic, polyurethane (PU) and epoxy (EP) resin. Aggregates can be natural stone, coloured quartz, colour chips and many other materials.
Precisely fitted profile rails, for example in aluminium, shape the surface. They protect the step edges and give the stairs a clean line.
STS stair systems at a glance
Four system groups cover everything from basement stairs to swimming pools:
| System | Material | Application | Properties |
|---|---|---|---|
| STS-100 | EP | Basement stairs, emergency exit stairwells, access to utility rooms | Liquid-tight, slip-resistant, chemical-resistant |
| STS-200 | PU | Outdoor areas, swimming pool stairs (diving towers and slides) | UV and weather-resistant, slip-resistant, chemical-resistant |
| STS-300 | EP, PU, colour chips | Stairs indoors and outdoors | Decorative, UV and weather-resistant, slip-resistant, chemical-resistant, heat-absorbing |
| STS-400 | EP, PU, quartz | Stairs indoors and outdoors | Decorative, UV and weather-resistant, slip-resistant, chemical-resistant, heat-absorbing |
Typical applications
- Stairwells in residential and commercial buildings
- Entrances and stair access areas
- Outdoor stairs on houses and public buildings
- Basement stairs and access to utility rooms
- Emergency exit stairwells
- Swimming pool stairs at diving towers and slides
Stone carpet systems for floors and walls →Stone carpet for outdoor areas →
Stairs with STS systems




How your stair project runs
- 1
Enquiry
Number and size of steps, indoors or outdoors, condition of the stairs – photos welcome.
- 2
Advice
Choice of the right STS system, colours and profiles.
- 3
Quote
Your quote, based on your stairs and the chosen system.
- 4
Installation
Installed by our team – the stairs can generally stay in use.
Stone carpet on stairs: FAQ
Can the stairs be used during the work?
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Yes, the stairs can generally stay in use during installation, so closures usually do not need to be planned.
Is stone carpet on stairs slippery?
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No. All STS stair systems are slip-resistant – indoors and outdoors.
Is stone carpet suitable for outdoor stairs?
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Yes. STS-200, STS-300 and STS-400 are UV and weather-resistant and designed for outdoor stairs, including swimming pool stairs.
Can old stairs be renovated with stone carpet?
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Yes. The stair systems suit old and new buildings alike and are used for every kind of stair renovation.
What do stone carpet stairs cost?
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The price depends on the number and size of the steps, the condition of the existing stairs, the system – coating or bound quartz surface – and the profiles. Send us dimensions and photos and we will send you a concrete quote.
Can the stairs be matched to the floor colour?
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Yes. The wide range of materials and colours lets you match the stairs to the adjoining floor or design a deliberate contrast.
Downloads and test reports
Stone carpet for your stairs?
Send us dimensions and photos of your stairs – we will recommend the right system and prepare your quote.
Request a stair quote