River – massive decorative stone with volume and durability
River stands out through its massiveness: large panels with a strong volume that give the wall a sense of stability, durability, and resistance over time. The texture is inspired by natural rocks, arranged in irregular layers.
The colors and shapes are 100% customizable – each project can have its own play of shades (gray, beige, brown, etc.) and composition, depending on the architectural style.
- Suitable for facades, plinths, fences, and interior accent walls
- Massive, robust appearance with accentuated volume and relief
- Configurable shades for classic or modern projects
Technical details – in short
River is a reconstructed decorative stone, designed for exterior and interior applications, tested according to European standards.
Available versions (joints):
- Without joints
- Small joints (< 10 mm)
- Medium joints (10–25 mm)
- Large joints (25–40 mm)
Can be mounted on:
- Concrete
- Brick / AAC
- Polystyrene (thermal insulation system / ETICS)
- Basalt mineral wool
River element dimensions
The River model is made of large, medium, and small panels for a wall with a strong volume and irregular but harmonious visual rhythm.
| Element type | Length (average) | Width (average) | Thickness (average) |
|---|---|---|---|
| Large panels | 430 mm | 222 mm | 41 mm |
| Medium panels | 202 mm | 151 mm | 42 mm |
| Small panels | 102 mm | 42 mm | 40 mm |
Water permeability & resistance
Water permeability (absorption):
Bond strength to substrate surfaces:
- EPS 80 polystyrene (100 mm)*: 73.13 kN/m²
- AAC: 752.13 kN/m²
- Solid brick: 1056 kN/m²
Mechanical properties and durability:
- Mechanical resistance: 6.07 MPa
- Flexural strength: 3.63 MPa
- Mass variations: 0.12%
- Variations in flexural strength: 33.97%
- Durability of flexural strength (after 25 freeze-thaw cycles): 59.8%
- Reaction to fire: A1 WT
* Adhesive (filler) reinforced with 145 g/m² fiberglass mesh was applied over the 100 mm EPS 80 polystyrene.
40-year warranty for the River model
The River model benefits from a
River is designed to maintain its appearance and performance over time, even in difficult climatic conditions, so that your wall looks just as good in decades to come.
* The complete terms and conditions of the warranty are available in the StoneArc technical area.Technical data
River is a reconstructed decorative stone, designed for both exterior and interior use, tested according to European standards.
Available versions (joints):
- Without joints: Yes
- Small joints (< 10 mm): Yes
- Medium joints (10–25 mm): Yes
- Large joints (25–40 mm): Yes
Can be mounted on:
- Concrete: Yes
- Brick / AAC: Yes
- Polystyrene (ETICS / thermal insulation system): Yes
- Basalt mineral wool: Yes
Dimensional stability: 0.12%
Reaction to fire: A1 WT
Dimensions
The River model is made of large, medium, and small panels to achieve a massive wall,
with a strong volume and irregular but harmonious rhythm.
| Element type | Length (average) | Width (average) | Thickness (average) |
|---|---|---|---|
| Large panels | 430 mm | 222 mm | 41 mm |
| Medium panels | 202 mm | 151 mm | 42 mm |
| Small panels | 102 mm | 42 mm | 40 mm |

