The Diephaus Siola-Mini is a dry-stone walling block made of cast concrete with three split faces and a sandblasted top surface. This black version measures 20 × 16.5 × 15 cm and features the PE3 Pearl Effect 3 surface finish. Because each block has a finished appearance, garden walls, raised beds, and stepped slopes require no additional coping or end stones.
The stone is aimed at garden owners as well as garden and landscape designers who create dry stone walls, bed borders or stepped embankments in a dark broken stone look; the same stone appears lighter in the color shell limestone .
According to Diephaus product data and installation instructions for wall elements, the following applications and test points apply:
The stones are simply stacked on top of each other, and thanks to split visible sides and blasted top surface, a finished wall finish is created without additional parts.
Diephaus recommends laying the stones in a bond pattern with narrow joints and varying the lengths.
According to the installation instructions, a frost-proof foundation of around 20 cm of lean concrete and a mortar leveling layer are required under the first layer; from 3 to 5 layers onwards, the rows are glued together.
With a length of 20 cm and a height of 15 cm, this equates to approximately 33 stones per m² of visible surface without joints; the number of stones changes with mixed lengths.
For higher slope stabilization structures or freestanding walls, Diephaus states that further structural engineering measures, including static calculations, are necessary. You can find more wall stones in the Diephaus overview .
The information is taken from the Diephaus product data for the Siola Mini series and the Diephaus installation instructions for wall elements (as of 09/26).
| Manufacturer and series | Diephaus Betonwerk GmbH, Siola-Mini |
| Article numbers | Diephaus: 1522290; Keuck: 13985 |
| Dimensions (L × W × H) | 20 × 16.5 × 15 cm |
| shade | Black |
| surface | Three visible sides split, top side blasted; coated |
| Surface protection | PE3 Pearl Effect 3, dirt and water repellent |
| Weight | approx. 11 kg per stone (Diephaus figure for the 20 cm format) |
| Lengths of the series | 15, 20, 25, 35 and 50 cm; width 16.5 cm; height 15 cm |
| Area of application | Boundary and boundary/edging, terrain terracing, visual and noise protection |
| processing | Apply dry in the dressing; from 3–5 layers onwards, they will adhere. |
| Demand (calculated) | Approximately 33 pieces per square meter of visible surface, without joints |
| Quality and care | Grade A quality; no road salt; no acidic cleaners on the coating |