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Imported structural steel for UK projects
Imported structural steel is fabricated steelwork manufactured outside the UK and brought in for a UK project. Done properly, it is produced through EN 1090-certified factories, arrives with the same certification and documentation as UK-fabricated steel, and a UK party acts as the importer — handling customs, duties and delivery. This guide explains how the route works, who is responsible for what, and what buyers should confirm before ordering.
Why import
Why UK projects import structural steel
International factories offer capacity and capability that can be hard to secure domestically — large fabrication volumes, steel and aluminium under one roof, and competitive production costs. The trade-off is complexity: supplier selection, certification checks, documentation, customs and freight all sit between the factory and your site.
That complexity is why many UK buyers avoid importing directly — and why a managed route exists. KLY gives UK buyers access to international factory capability through a UK-managed, documented supply route: one UK-accountable supplier from requirement to site delivery.
The route
Factory to site in five steps
1
Requirements
Drawings, specifications or a plain description of the structure are reviewed. DWG, PDF, STEP and IFC are accepted — but a short written brief is enough to start.
2
Engineering support
Where required, engineering support is arranged through qualified independent partners. Design responsibility remains with the customer's appointed engineer.
3
Factory production
Production through EN 1090-certified factories, with execution class and documentation scope confirmed per project. Manufacturing begins only after drawings and scope are approved.
4
Documentation
Inspection records and the agreed technical documentation are prepared alongside production. The document pack is agreed at quotation.
5
Import and delivery
KLY acts as the UK importer for its standard supply route, managing import coordination, customs documentation and delivery to site — DDP where agreed.
Importer role
Who is the importer?
Every import into the UK has an importer of record — the party responsible for customs declarations, import duties and compliance. Buy directly from an overseas factory and that party is usually you: your business needs an EORI number, customs entries and a freight chain, and carries the border risk.
KLY acts as the UK importer for its standard supply route, managing import coordination, customs documentation and delivery to site. The customer contracts with KLY as a UK supplier — one company accountable for the package from factory to site, DDP where agreed, with landed cost and delivery terms clear before order.
Certification
EN 1090 for imported steelwork
EN 1090 is the standard governing fabricated structural steel and aluminium placed on the UK and EU markets. The certification belongs to the factory, not the country — an overseas factory certified to EN 1090 can produce compliant steelwork for a UK project exactly as a UK fabricator can.
What matters is scope. Execution classes run from EXC 1 to EXC 4, set by the structure’s consequence class — and a factory’s certificate covers specific classes, materials and welding processes. Production through EN 1090-certified factories, with execution class and documentation scope confirmed per project, is the safe formulation: certification checked against the actual structure, not assumed. KLY coordinates certification through its factories and does not self-certify; certificates are available on request.
Documentation
The documentation pack
Documentation is where imported steel most often goes wrong — and where a managed route earns its keep. The pack should be agreed at quotation and prepared alongside production. Depending on the agreed scope, it typically includes:
- —Declaration of Performance (DoP)
- —CE / UKCA marking documentation
- —Material test certificates (EN 10204 3.1)
- —Welding procedure and welder qualification records
- —Inspection and dimensional check reports
- —Coating and galvanising records
- —Packing lists and delivery documentation
- —Third-party inspection reports where agreed
Checklist
What buyers should confirm before ordering
Whether you import directly or through a managed route, these are the questions that separate a documented package from an expensive surprise:
- —Factory EN 1090 certification — sight the certificate, not just the claim
- —Execution class required by your structure's consequence class, and whether the factory certificate covers it
- —Welding scope: processes and materials covered by the factory's qualifications
- —The documentation pack — agreed in writing at quotation, not after production
- —Who acts as the importer of record, and who handles customs and duties
- —Delivery terms: DDP or otherwise, and what the landed cost includes
- —Site access, offload responsibility and delivery programme
Under KLY’s route these points are handled as standard — see how we work for the full process.
FAQ
Imported steel — common questions
It depends on the supply route. If you buy directly from an overseas factory, your business is usually the importer — responsible for customs declarations, duties and compliance. Under KLY's standard supply route, KLY acts as the UK importer, managing import coordination, customs documentation and delivery to site, so the customer contracts with a UK supplier rather than an overseas factory.
Yes. EN 1090 certification belongs to the factory, not the country. Production is through EN 1090-certified factories, with execution class and documentation scope confirmed per project against the relevant factory certificate. Packages carry CE/UKCA marking with the agreed EN documentation.
Typically: Declaration of Performance, CE/UKCA marking documentation, material test certificates (EN 10204 3.1), welding procedure and welder qualification records, inspection and dimensional reports, coating records, and packing and delivery documents. The pack is agreed at quotation so nothing is negotiated after the fact.
DDP (Delivered Duty Paid) means the supplier handles freight, customs clearance and import duties, and delivers to your site. Where agreed, KLY supplies DDP — so the landed cost and delivery terms are clear before order, with no surprise charges at the border.
No. Drawings are welcome but not required to start — a short description of the structure, rough sizes or quantities and the site location is enough for a first conversation. Production itself begins only after drawings and scope are approved.
Design responsibility remains with the customer's appointed engineer, or an appointed independent engineer, depending on the project agreement. Where required, KLY can arrange engineering support through qualified independent partners.