Manufacturer of hemp-clay building panels, clay plasters and hemp-clay building materials for ecological dry construction.
Lehmbaustoffe Schleusner & Söhne GmbH
39524 Schönhausen (Elbe) · DENew on Amplifa
About Schleusner
Lehmbaustoffe Schleusner & Söhne GmbH is a family-run manufacturer of ecological building materials made from clay and hemp, based in Schönhausen (Elbe). The product range includes hemp-clay building panels in 10, 14 and 22 mm thickness, clay plasters (fine, top, universal and base plaster) to DIN 18947, hemp-clay bricks 2DF to DIN 18945, hemp-clay dry loose fill, earth-moist hemp rammed clay and sprayable clay. The clay building panels have been produced since 2018 on a 75-metre-long production line in a continuous endless process with 3 m production width; the reinforcement has been made entirely of jute fabric since 2024. Since 2022, panel production has been running in three-shift operation, complemented by an automatic storage system with more than 350 storage slots for clay dry plasters. Customers include tradespeople, building material retailers, planners and industrial customers in Germany and all of Europe; in addition, the company delivers clay plasters via mobile silo technology in the Berlin-Brandenburg region. In 2025, the mark of 1 million m² of produced clay building panels was exceeded.
- Site
- Schönhausen (Elbe)
- Processes
- Production of hemp-clay building panels (10/14/22 mm) in a continuous endless process, Production of clay plasters (fine, top, universal, base plaster) dry/earth-moist, manual and, Production of hemp-clay bricks 2DF (DIN 18945, bulk density 700 kg/m³) for inner leaves and, Production of hemp-clay dry loose fill (400 kg/m³) in BigBags, Production of hemp rammed clay, earth-moist hemp-clay mixture (BigBag) for interior insulation, Production of sprayable clay for hemp-clay applications, Technical consulting, Sales
- Materials
- Clay (ground building clay), Hemp (hemp shives/hemp lightweight clay), Sand, Jute fabric (reinforcement), Straw (additive up to 2 cm), Gravel (up to 4 mm, base plaster), Clay plasters, Hemp-clay building panels
- Certificates
- NaturePlus, EPD (Environmental Product Declaration), DIN 18948 (clay panels, in-house production control according to DIN 18942-100, DIN 18947 (clay plasters), DIN 18948 (clay panels), DIN 18945 (clay bricks), natureplus, EPD / ÖkoBauDat, In-house production control DIN 18942-100 with external monitoring
- Founded
- 1991
- Employees
- 15
- Industries
- Ecological building / clay building, Dry construction, Renovation / building material retail, Monument conservation, Planning / architecture, Trades
- 01
Raw material storage (clay, hemp, sand)
- 02
Processing & mixing
- 03
Endless production of clay building panels / plaster mix
- 04
Drying (biomass)
- 05
Storage (automatic warehouse / bulk goods hall)
- 06
Loading of sack goods, BigBag, silo
- 07
Delivery DE & Europe
Raw Materials & Standards
Clay plasters
Fine, top, universal and base plasters made of ground building clay and sand, suitable for manual and machine application.
Hemp-clay building panels
Panels made of clay, hemp and sand with jute reinforcement on both sides, dimensional accuracy MHK I.
Hemp-clay bricks 2DF
Lightweight bricks with bulk density 700 kg/m³ for inner leaves and half-timbered infill.
Hemp-clay dry loose fill
Homogeneous dry loose fill coated with clay at 400 kg/m³, delivered in BigBags.
Hemp rammed clay
Pre-mixed earth-moist hemp-clay mixture for interior insulation.
Sprayable clay
Sprayable clay for hemp-clay applications.
Jute fabric
Natural reinforcement of the clay building panels, since 2024 instead of glass fibre.
Sites
Schönhausen (Elbe)
DEHeadquarters and production plant
- Part weight / size
- approx. 18.5 kg per panel (22 mm)
- Lot size
- Continuous series production
- Materials
- Clay, hemp, sand, jute fabric
- Clay building panel production line, 75 m, endless process, 3 m width (2018)
- Automatic storage system, more than 350 storage slots (2022)
- Bulk goods hall (2024)
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of hemp-clay building panels (10/14/22 mm) in a continuous endless processOther (building material manufacturing) | Dimensional accuracy MHK I: length ±2.0 mm / thickness ±1.0 | 1250 mm (panel format) × 1000 mm (panel format), production width | approx. 18.5 kg per panel (22 mm) | – | Clay, Hemp, Sand, Jute fabric |
| Production of clay plasters (fine, top, universal, base plaster) dry/earth-moist, manual andOther (building material manufacturing) | – | – | – | – | ground building clay, sand, gravel, straw |
| Production of hemp-clay bricks 2DF (DIN 18945, bulk density 700 kg/m³) for inner leaves andOther (building material manufacturing) | – | – | – | – | Clay, Hemp |
| Production of hemp-clay dry loose fill (400 kg/m³) in BigBagsOther (building material manufacturing) | – | – | – | – | Clay, Hemp |
| Production of hemp rammed clay, earth-moist hemp-clay mixture (BigBag) for interior insulationOther (building material manufacturing) | – | – | – | – | Clay, Hemp |
| Production of sprayable clay for hemp-clay applicationsOther (building material manufacturing) | – | – | – | – | Clay, Hemp |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Clay building panel production line (endless process) | – | 1 | 75 m length, 3 m width | 2018 | Schönhausen (Elbe) |
| Automatic storage system for clay dry plasters | – | 1 | more than 350 storage slots | 2022 | Schönhausen (Elbe) |
| Bulk goods hall (storage of clay, hemp, sand) | – | 1 | – | 2024 | Schönhausen (Elbe) |
| Mobile silo technology for clay plasters | – | – | – | 2025 | Berlin-Brandenburg region |
Additional services
Reference customers
Quality & Certification
The clay building panels are subject to in-house production control according to DIN 18942-100 with external monitoring; plasters and bricks comply with DIN 18947 and DIN 18945 respectively. Products are natureplus-certified, documented with an EPD and compliant with QNG, AgBB, klimaaktiv, DGNB, BNB and the EU Taxonomy.
| Evidence | Schönhausen (Elbe) |
|---|---|
| DIN 18948 (clay panels) | |
| DIN 18947 (clay plasters) | |
| DIN 18945 (clay bricks) | |
| natureplus | |
| EPD / ÖkoBauDat | |
| In-house production control DIN 18942-100 with external monitoring |
History
- 1991
Foundation of the clay building business by Wilfried and Petra Schleusner in Borstel near Stendal; production initially for their own construction projects and for friendly construction companies.
- 2007
Death of Wilfried Schleusner after the move to Schönhausen (Elbe); Ludwig Schleusner takes over the business at the age of 17.
- 2009
Conversion to BigBags and sack goods; introduction of dry, machine-applicable clay plasters; first clay building panels made by hand.
- 2012
Development of the Schleusner hemp-clay building panel.
- 2013
Elbe flood shortly after commissioning of the first prototype plant; restart.
- 2017
Refounding as Lehmbaustoffe Schleusner & Söhne GmbH by Petra, Ludwig and Friedemann Schleusner.
- 2018
Commissioning of the 75 m long clay building panel line in Schönhausen (endless process, 3 m width).
- 2022
Three-shift operation around the clock; automatic storage system with more than 350 storage slots for clay dry plasters.
- 2024
New bulk goods hall; switch of drying energy from natural gas to biomass; change of panel reinforcement from glass fibre to jute fabric.
- 2025
General supplier for clay products with a focus on dry construction; mobile silo technology in the Berlin-Brandenburg region; 1 million m² of clay building panels exceeded; member of the Industrieverband Lehmbaustoffe e.V.