CUSTOM BUILDS
Your drawings, our production line
Bespoke container and steel-structure builds for B2G, B2C and B2B customers. Engineering review, EN 1090 EXC2 fabrication, RAL livery to spec, delivery EXW Bánovce or DAP across Europe.
- Steel
- EN 1090 EXC2
- RAL
- 3000 / 5010 / 7016
- Finish
- Hot-dip galv opt.
- Engineering
- Review included
At a glance
- Steel
- EN 1090 EXC2
- RAL
- 3000 / 5010 / 7016
- Finish
- Hot-dip galv opt.
- Engineering
- Review included
Overview
Overview
We produce, supply, and customise nearly anything to your specification. Custom is not a separate product. It is the engagement model behind the full range of container and steel types we supply: accommodation and office modules, sanitary, shower and laundry units, command and control modules, workshop and storage containers, kitchen and catering units, server and technical-equipment shelters, ISO shipping containers, demountable and over-width envelopes, welded steel sub-assemblies, frames, skids and tank sections. If a buyer arrives with drawings, a use case, or a fleet need that does not fit the four catalog families, the same hall in Bánovce nad Bebravou cuts, welds, blasts and paints the unit.
The difference is at the front of the process. Before the first plate is cut, our engineering team reviews the drawings against EN 1090-1 EXC2 execution requirements, develops the weld procedures, and returns a fixed price and a fixed lead time. The customer signs off shop drawings and a bill of materials. Only then does steel hit the laser.
This family is how most of our defense, public security and industrial OEM work runs. Government defense frameworks, NATO-supplier programmes, emergency and crisis accommodation contracts, over-width export programmes, and subcontract relationships with European agricultural-machinery, conveyor and strategic vehicle integrators all sit inside this engagement model. The buyer brings a specification. We bring the production line, the welders, the paint booth and the documentation. If the unit is not a container at all but a welded steel sub-assembly, a frame, a skid or a tank section, the same line handles it under the same EN 1090 chain.



Build standard
Construction and materials
A custom build inherits the construction language of whichever catalog family is closest, then deviates wherever the spec calls for it. Common defaults:
Frame
hot-rolled structural steel (S235 to S355 typical), welded to EN ISO 3834-2, integrated into the EN 1090-1 EXC2 chain. EN 10204 3.1 mill certificates on every heat-traceable plate and section.
Body
1.6 to 2.0 mm corrugated steel or flat plate, weathering grade or hot-dip galvanised per spec.
Doors and openings
cam-locking gear, double end doors, side doors, full open-side, roller shutter, personnel doors, vehicle entry.
Floor
28 mm marine plywood, steel checkered plate, diamond plate, anti-slip resin or PIR insulated cassette.
Insulation
PIR sandwich or mineral wool where the use case requires it. Wall and roof thickness proposed against the heat load and fire spec.
Paint
surface prepared to ISO 8501 Sa 2.5. Two-coat system rated C3 (EN ISO 12944), or C4 / C5 on request. Hot-dip galvanising as a pre-step on request.
Livery
any RAL code. RAL 3000 (fire-service red), RAL 5010 (gentian blue), RAL 7016 (anthracite) and the NATO three-tone livery are run regularly.
Electrical
PN-HD 60364 low-voltage. CEE inlets, IP65 fittings, RCD protection, lighting and heating circuits to the buyer's load schedule.
Specifications
Dimensions and tolerances
Custom builds do not carry a single dimension table. The envelope is set by the buyer's drawings. For orientation, the most common starting points are:
Over-width work is routine, with units delivered in widths from 2438 mm up to 2990 mm. Dimensional tolerances are held to EN 1090-2 Table D.1 for the steelwork and to ISO 668 where the unit is intended for intermodal transport. Final FARO Arm Prime 10 3D measurement is taken on the first article of every new spec, and on a sample of subsequent units, to confirm geometry against the signed-off drawing.
| Standard | Common custom range | |
|---|---|---|
| External length | 6058 / 12 192 mm | 3000 to 14 000 mm |
| External width | 2438 mm | 2200 to 2990 mm |
| External height | 2591 / 2896 mm | 2400 to 3200 mm |
| Wall and roof finish | Corrugated | Corrugated, flat plate, sandwich panel |
| Floor live load | Catalog spec | Specified per use case |
Certified
Certifications and norms
The execution class is the headline. Tanax operates under EN 1090-1 EXC2 capability with welding production-level qualification to EN ISO 3834-2. The following are run on the same line and can be activated for a custom build:
- EN 1090-1 EXC2 (execution class for steel structures)
- EN ISO 3834-2 (welding, production-level)
- EN ISO 9606 welder qualification (MAG 135 and related processes)
- ISO 8501 Sa 2.5 (surface preparation)
- EN ISO 12944 C3 to C5 (corrosivity protection)
- EN 10204 3.1 mill certificates on traceable steel
- ISO 9001 quality, ISO 14001 environmental
- AQAP 2110:2017 for NATO and military-cleared work
- CSC plate (Container Safety Convention) where the unit is intended for intermodal handling
- Slovak Defense Trade License and Military Aviation Vendor Approval for cleared programmes
- NSPA NATO CAGE 4094M for defense supply
For higher-risk structures the execution class can be lifted toward EXC3 on a project basis. This requires a pre-project review and is priced separately.
Deployment
Typical use cases
Defense and military fleet
Government defense framework units, NATO supplier work, government defense accommodation, command, workshop and storage modules. Cleared livery, AQAP 2110 documentation, secure handover.
Configure
Customisation options
Anything we can cut, weld, blast and paint inside the hall can be specified. Common deviation routes from the catalog baseline:
non-ISO widths up to 2990 mm, non-standard heights, multiple-bay frames, bolted demountable sections for transport on standard trailers.
Lead time
Lead time and delivery
Custom work runs on a 10 to 16 week schedule from signed-off drawings to ex works dispatch.
Specification and NDA
within 24 hours of first contact when drawings are sensitive.
Quotation
3 to 10 working
3 to 10 working days depending on complexity, with a fixed price and lead time.
Engineering
shop drawings, BOM, weld procedures (WPS and PQR), customer sign-off gate before steel is cut.
Production
8 to 14 weeks
8 to 14 weeks for a single unit or short batch. Hot-dip galvanising as a pre-step adds 1 to 2 weeks.
Delivery
EXW Bánovce nad Bebravou as default. DAP and DDP on request, with CMR, CSC plate (where applicable), declaration of performance, mill certificates and multilingual manuals on handover.
Framework call-off
rare for one-off custom builds. On multi-year programmes, the call-off cycle is held to the framework schedule, with engineering and weld qualifications done once and production compressed for subsequent batches.
Proven in service
Reference deployments
Wider-than-ISO modular accommodation bodies fabricated in Bánovce and delivered into the United Kingdom
- Client
- United Kingdom
- Year
- Delivered
Wider-than-ISO bodies built to the buyer's own dimensional convention. Widths 2438 to 2990 mm, transported across Europe under the buyer's import paperwork.
View project →Hot-dip galvanised K9 kennels for the Slovak government police sector
- Client
- Slovak government
- Year
- 2022 to 2025
Modular outdoor kennels for police dog units. Zinc-coated steel to ISO 1461, sealed weldments, 24-month warranty across the build.
View project →Black-finish trailer-mounted firefighter training modules
- Client
- United States & EU
- Year
- 2025-2026
Bilateral B2G and B2B partnership with a US training-equipment specialist. Smoke-rated steel structure, diamond-plate flooring, road-legal trailer chassis. US deliveries active, EU markets ramping.
View project →FAQ
FAQ
Send a specification. Get a fixed quote.
Engineering review included. Quotation turnaround is 3 to 5 working days for standard configurations.