
Engineering consultancy for structural design, structural checking, building physics, H&S coordination (SiGeKo) and concrete refurbishment, based in Arnsberg

Dipl.-Ing. C. Köster Ingenieurgesellschaft für Tragwerksplanung mbH
Arnsberg (Europaplatz 3)New on Amplifa
About the engineering consultancy
Dipl.-Ing. C. Köster Ingenieurgesellschaft für Tragwerksplanung mbH (IFT Statik) is an engineering consultancy based in Arnsberg in the Sauerland region. Its team of engineers, technicians and draftsmen designs, dimensiones and constructs structures in concrete, steel and timber – from bridges, administrative buildings and residential houses to complex industrial plants. Its services include structural design, verification checking of structural stability evidence, sound and thermal insulation evidence, coordination under the Construction Sites Ordinance (SiGeKo), concrete refurbishment concepts, and CAD services such as formwork, reinforcement and detail drawings for timber, steel and precast construction. In addition, the office prepares bills of quantities and undertakes project design and structural engineering of engineering structures. Clients include industrial companies such as WEPA, Veltins and Perstorp as well as numerous municipalities and public-sector clients in NRW. The office works nationwide on projects of all sizes.
- Site
- Arnsberg
- Processes
- Structural design, Checking of structural stability evidence / structural checking, Sound and thermal insulation evidence (building physics), SiGeKo – coordination under the Construction Sites Ordinance, Concrete refurbishment concepts / concrete repair, CAD services, formwork, reinforcement and detail drawings (timber construction, steel construction,, Preparation of bills of quantities / project design of engineering structures, Structural checking (verification of structural stability evidence)
- Materials
- Beton, Stahl, Holz, Concrete, Steel, Timber
- Certificates
- Approval for building permit submissions NRW, Checking engineer for structural stability (solid construction), SiGeKo certification, Expert for sound/thermal insulation, Qualified planner for concrete maintenance
- Founded
- 1997
- Industries
- Structural engineering, Bridge construction, School and hospital construction, Commercial and administrative buildings, Industrial and hall construction, Residential construction
- 01
Project consultation and clarification of boundary conditions
- 02
Structural design
- 03
Structural calculations and code-based verification
- 04
Detailing and CAD drawings (formwork and reinforcement plans)
- 05
Checking of structural stability evidence
- 06
SiGeKo coordination and project support
Materials and building materials
Concrete
Main material for solid construction, concrete refurbishment and engineering structures.
Steel
Used in steel construction and for detail drawings.
Timber
Material for detail drawings in timber construction.
Location

Arnsberg
DEHead office: structural design, structural checking, building physics, SiGeKo
- Materials
- Concrete, steel, timber
- CAD software
- Digital checking of structural stability evidence
Project areas





Inside the production











Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Structural designEngineering | – | – | – | – | Beton, Stahl, Holz |
| Checking of structural stability evidence / structural checkingPrüfung | – | – | – | – | – |
| Sound and thermal insulation evidence (building physics)Engineering | – | – | – | – | – |
| SiGeKo – coordination under the Construction Sites OrdinanceEngineering | – | – | – | – | – |
| Concrete refurbishment concepts / concrete repairEngineering | – | – | – | – | Beton |
| CAD services, formwork, reinforcement and detail drawings (timber construction, steel construction,Engineering | – | – | – | – | Beton, Stahl, Holz |
| Preparation of bills of quantities / project design of engineering structuresEngineering | – | – | – | – | – |
Additional services
Qualifications and approvals
Qualified structural designers under BauO NRW 2018; checking engineer for structural stability (solid construction), certified SiGeKo coordinator, expert for sound and thermal insulation, and qualified planner for concrete maintenance.
| Evidence | Arnsberg |
|---|---|
| Approval for building permit submissions NRW | |
| Checking engineer for structural stability (solid construction) | |
| SiGeKo certification | |
| Expert for sound/thermal insulation | |
| Qualified planner for concrete maintenance |
History
- 1954
Founding of predecessor office INS – Ingenieurbüro Neuhaus Schwermann
- 1997
Founding of the engineering consultancy by Claus Köster, Heinz Schandelle and Jürgen Schmidt; takeover of the INS building construction department
- 1997
Acquisition of approval for building permit submissions in NRW
- 2000
Service expansion: expert for sound and thermal insulation
- 2003
First digital presence (homepage)
- 2007
Departure of Heinz Schandelle as managing director
- 2008
Claus Köster admitted as checking engineer for structural stability (solid construction)
- 2012
Jürgen Schmidt certified as SiGeKo coordinator
- 2013
Andreas Schauerte certified as qualified planner for concrete maintenance
- 2013
Fabian Schaefer joins as third managing director
- 2016
Move to new business premises at Europaplatz Arnsberg
- 2017
20th company anniversary
- 2018
Digitisation of the in-house archive (major projects since 1954)
- 2019
Registration of the engineers as qualified structural designers under BauO NRW 2018
- 2022
Introduction of digital checking of structural stability evidence
- 2023
Paul Hense becomes top architectural draftsman graduate of 2023 in North Rhine-Westphalia