
Prefabrication of wall, ceiling and roof elements made of timber as well as timber construction execution for residential and commercial building projects
Hartmann Holzbau GmbH und Co. KG
36341 Lauterbach-Wallenrod, DE · Headquarters / Production PlantNew on Amplifa
Family company in ecological timber construction
Hartmann Holzbau GmbH und Co. KG is a fourth-generation family company based in Lauterbach-Wallenrod in the Vogelsberg region (Hesse), managed by Dirk Hartmann (master carpenter). The company manufactures prefabricated wall, ceiling and roof elements made of timber – both single-side clad elements (DIN 1052-11 Type M1C) and double-side clad, non-glued timber panel elements (Type M2) – and executes new builds, rooftop extensions, roof structures, conversions and renovations in timber construction. The value chain comprises CAD-supported design and planning, element prefabrication in the company's own plant with a high degree of prefabrication, and on-site assembly. The structural timber used comes from sustainably managed regional forests, supplemented by natural building materials. The construction sites are located within a radius of approximately 100 kilometres around the site. Customers include private builders as well as commercial and public construction projects in residential and commercial building.
- Site
- Lauterbach-Wallenrod
- Processes
- House construction (timber houses), Conversion / Rooftop extension, Carpentry work, Timber engineering, Commercial building, Renovation / Restoration, Production of single-side clad, non-glued timber panel elements (wall, ceiling and, Production of double-side clad, non-glued timber panel elements (DIN 1052-11 Type M2)
- Materials
- Structural timber, Timber, Natural building materials, Timber (natural building materials)
- Certificates
- RAL GZ-422 Quality Mark Timber House Construction, RAL GZ-421 Quality Mark Timber Rough Element Production, RAL Quality Mark Roof Construction, Holzbau Deutschland Certified Specialist Company, Master Craftsmanship – German Construction Industry, Hessian Prequalification Register (HPQR), Master Craft Business – Chamber of Crafts Wiesbaden, Certificate of Conformity – single-side clad, non-glued, Certificate of Conformity – double-side clad, non-glued, Certificate of Conformity DIN 1052-11 Type M1C, Certificate of Conformity DIN 1052-11 Type M2
- Industries
- Residential construction, Commercial/public construction projects, Timber construction / carpentry
- 01
CAD-supported design and planning
- 02
Prefabrication of wall, ceiling and roof elements in the plant
- 03
Transport to the construction site
- 04
Assembly and execution in carpentry
- 05
Renovation / restoration of existing timber buildings
Materials and building materials
Structural timber
Regional raw material from sustainably managed forests for new builds, rooftop extensions and timber structures.
Timber (natural building materials)
Natural building materials for reducing CO2 emissions and for sustainable construction.
Sites
Lauterbach-Wallenrod
DEHeadquarters / Production Plant
- Materials
- Timber, structural timber, natural building materials
- CAD-supported planning and production area
- Prefabrication of wall, ceiling and roof elements
Timber construction elements and services



Inside the production







Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| House construction (timber houses)Assembly | – | – | – | – | Holz |
| Conversion / Rooftop extensionAssembly | – | – | – | – | Konstruktionsholz |
| Carpentry workAssembly | – | – | – | – | Konstruktionsholz |
| Timber engineeringEngineering | – | – | – | – | Holz |
| Commercial buildingAssembly | – | – | – | – | Holz |
| Renovation / RestorationAssembly | – | – | – | – | Holz |
| Production of single-side clad, non-glued timber panel elements (wall, ceiling andAssembly | – | – | – | – | Holz |
| Production of double-side clad, non-glued timber panel elements (DIN 1052-11 Type M2)Assembly | – | – | – | – | Holz |
| Prefabrication of timber construction elements / timber rough elementsAssembly | – | – | – | – | Holz |
| Roof constructionAssembly | – | – | – | – | Holz |
| Planning and production area with computer technology (CAD-supported planning)Engineering | – | – | – | – | Holz |
Additional services
Certificates and quality marks
Quality is assured by the RAL quality assurance system of the Gütegemeinschaft Holzbau–Ausbau–Dachbau e. V. (GHAD) as well as in-plant production control with external monitoring by the VHT-Institut für Leichtbau Trockenbau Holzbau, Darmstadt. In addition, the company is listed in the Hessian Prequalification Register (HPQR) for public clients.
| Evidence | Lauterbach-Wallenrod |
|---|---|
| RAL GZ-422 Quality Mark Timber House Construction | |
| RAL GZ-421 Quality Mark Timber Rough Element Production | |
| RAL Quality Mark Roof Construction | |
| Holzbau Deutschland Certified Specialist Company | |
| Master Craftsmanship – German Construction Industry | |
| Hessian Prequalification Register (HPQR) | |
| Certificate of Conformity DIN 1052-11 Type M1C | |
| Certificate of Conformity DIN 1052-11 Type M2 |
Company history
More than 100 years of company history as a family business, today managed in the fourth generation by Dirk Hartmann
- 2018
First award of the RAL quality marks Timber House Construction (GZ-422) and Timber Rough Element Production (GZ-421) by the Gütegemeinschaft Holzbau–Ausbau–Dachbau e. V.
- 2021
Admission as a Holzbau Deutschland certified specialist company in the Verband Holzbau Deutschland – Verband hessischer Zimmermeister e. V.