
Custom-made loft doors and fixed elements in steel and glass – in-house production with sound insulation certification to ISO 10140-2.

Steel-Interior
Dinklage (Bahnhofstraße 23)New on Amplifa
About Steel-Interior
Steel-Interior manufactures individual loft doors and fixed elements in steel and glass in its own production facility in Dinklage. The product range includes hinged, pivot and swing doors, sliding doors as well as room dividers, each made to order according to customer measurements – including special sizes, special colors and special shapes. The elements are planned via an online configurator, documented with technical drawings and measurement sheets, and delivered on request as a complete package including installation; alternatively, self-assembly with detailed instructions is possible. In addition to clear glass, safety glazing such as VSG 33.1 as well as toughened safety glass (ESG) in 4 mm and 6 mm is used, as well as acoustic glazing with a drop-down bottom seal. Certified models achieve sound insulation values of 33 to 40 dB according to ISO 10140-2 (tested by ift Rosenheim GmbH). The elements are delivered and installed for private and commercial customers throughout Europe, including for offices, administrative buildings, educational institutions and hotels.
- Site
- Dinklage
- Processes
- Loft door manufacturing (hinged, pivot, swing, sliding doors, fixed elements, room dividers) made, Installation / sound insulation certification according to ISO 10140-2 (testing by ift Rosenheim), Individual custom manufacturing (configurator), Planning through to installation, Installation service / complete package incl. installation, Self-assembly with installation instructions, Technical drawings and measurement sheets, Consultation appointments
- Materials
- Steel, VSG 33.1 safety glazing, ESG glass 4 mm, ESG glass 6 mm, VSG 66.1 acoustic glass
- Certificates
- Sound insulation certification according to ISO 10140-2, Sound insulation according to ISO 10140-2 (ift Rosenheim), Safety glazing (VSG/ESG)
- Employees
- 50+
- Industries
- Private customers (living spaces), Commercial customers, Administrative buildings, Educational institutions, Hotels, Offices
- 01
Consultation & configuration
- 02
Measurement / technical drawings
- 03
In-house custom manufacturing
- 04
Quality inspection / sound insulation
- 05
Delivery
- 06
Installation
Materials & Glazing
Steel
Material for frames and bars of the loft doors and fixed elements in industrial style.
VSG 33.1 safety glazing
Safety glazing, including as VSG acoustic glass in certified door versions.
ESG glass 4 mm
Single-pane safety glass in 4 mm for various door versions.
ESG glass 6 mm
Single-pane safety glass in 6 mm for various door versions.
VSG 66.1 acoustic glass
Acoustic glazing for certified fixed elements with 40 dB sound insulation (SSK2).
Locations

Dinklage
DEProduction and showroom
- Lot size
- Custom single-piece production; 10.000+ elements/year
- Materials
- Steel, VSG 33.1, ESG 4/6 mm, VSG acoustic glass
Components






Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Loft door manufacturing (hinged, pivot, swing, sliding doors, fixed elements, room dividers) madeAssembly | – | – | – | 10.000+ elements/year | Steel, Glass |
| Installation / sound insulation certification according to ISO 10140-2 (testing by ift Rosenheim)Testing | – | – | – | – | Steel, Glass, VSG acoustic glass |
Additional services
Quality & Sound Insulation
The sound insulation of certified models was tested according to ISO 10140-2 by ift Rosenheim GmbH (test mark K077884): Loft20 with 33 dB (door, SSK1), Loft20 fixed element 36 dB (SSK1), Loft40 fixed element with VSG 66.1 40 dB (SSK2). As a result, the models meet the requirements for public tenders.
| Evidence | Dinklage |
|---|---|
| Sound insulation according to ISO 10140-2 (ift Rosenheim) | |
| Safety glazing (VSG/ESG) |