Manufacture of interior doors and frames in solid wood, genuine lacquer, CPL and glass for trade and finishing
GRAUTHOFF Türengruppe
Mastholte · GüstenNew on Amplifa
About GRAUTHOFF
GRAUTHOFF Türengruppe is a family-owned business that has been manufacturing interior doors and frames for residential construction for over 65 years. With its product brands ASTRA, HGM, licht & harmonie and alumin impulse, the company delivers a broad program of doors and frames for the finishing trade. Production includes door leaves with groove-milled decorations, genuine lacquer finishing, and cross-veneered solid wood surfaces in wood species such as oak, beech, American walnut, American cherry and maple; in addition, CPL surfaces, glass inserts (float, Satinato, VSG matte, beveled glass) as well as aluminum and stainless steel applications are processed. In 2025, new packaging systems for the utility-model-protected, cardboard-based frust-free door packaging were commissioned at the Mastholte and Güsten sites. The company also offers digital services such as GT-Interaktiv 2.0, GT-Infosystem Web, an interactive door finder, a virtual showroom tour and a chatbot, as well as a training workshop for technology and installation.
- Site
- Mastholte
- Processes
- Groove milling (door leaf decoration), Genuine lacquer finishing (door leaves), Veneer processing (solid wood veneer, cross-veneered), Door and frame manufacturing/assembly, Frust-free door packaging (cardboard packaging, closed on 6 sides, utility-model protected), frust-free door packaging (cardboard-based, utility-model-protected), unit packaging for apartment entrance and functional doors, training workshop for technology and installation
- Materials
- Oak (natural, Smoke, Titan, Bronze, Bourbon, Nero), Beech (steamed), American walnut, American cherry, Maple, CPL (Continuously Pressed Laminate, e.g. Effekt Onyx, Pinea Snow, FACHWERK oak natural), Genuine lacquer / white lacquer (similar to RAL 9010, RAL 9016, Pure Colours), Laminate (white lacquer laminate)
- Industries
- Door and frame manufacturing (interior doors), Trade / finishing
- 01
Door and frame manufacturing (groove milling, lacquering, veneer processing)
- 02
Assembly of door and frame elements
- 03
Frust-free door packaging / unit packaging
- 04
Picking and shipping
Sites
Mastholte
DEManufacturing and packaging site
- Materials
- Wood, wood-based material, CPL, glass, aluminum
- Packaging system (frust-free door packaging)
Güsten
DEManufacturing and packaging site
- Materials
- Wood, wood-based material, CPL, glass, aluminum
- Packaging system (frust-free door packaging)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Groove milling (door leaf decoration)Machining | – | – | – | – | Wood, lacquered door leaf |
| Genuine lacquer finishing (door leaves)Surface | – | – | – | – | Wood, wood-based material |
| Veneer processing (solid wood veneer, cross-veneered)Surface | – | – | – | – | Oak, Beech, American walnut, American cherry, Maple |
| Door and frame manufacturing/assemblyAssembly | – | – | – | – | Wood, Aluminum, Laminate, CPL |
| Frust-free door packaging (cardboard packaging, closed on 6 sides, utility-model protected)Assembly | – | – | – | – | Cardboard (100% recyclable) |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Packaging system (frust-free door packaging) | – | – | – | 2025 | Mastholte and Güsten |
Additional services
History
Foundation of the family-owned business; for over 65 years the name GRAUTHOFF has stood for quality, innovation and design-oriented door engineering.
- 2025
Commissioning of new packaging systems for frust-free door packaging at the Mastholte and Güsten sites; introduction of ChatBot, GT-Interaktiv 2.0, GT-Infosystem Web and a training workshop.