Türkiye is a premier heavy and pre-engineered structural steel fabrication hub for bolted portal-frame warehouses (Çelik Depo), industrial production halls (Fabrika Binası), logistics centres, cold-storage envelopes, agricultural halls and wide-span hangars (Çelik Hangar). Supported by Civil Engineer Celalettin YAĞMAHAN and Architect İdris YAĞMAHAN under CFY Mühendislik Mimarlık, SerSourcing aligns primary structural steelwork, cold-formed Z/C purlins, PIR/mineral-wool roof & wall sandwich panels, skylights and industrial doors into verifiable, direct-from-fabricator packages.
IPE / HEA / HEB or submerged-arc welded tapered plate girders (S275JR / S355JR / S355J2), plus galvanized S350GD+Z275 cold-formed Z/C roof purlins and wall girts.8.8 / 10.9 high-strength structural bolt assemblies (EN 14399 / EN 15048), wind/portal bracing rods and sag rods.ISO 8501-1 Sa 2½), epoxy primer + polyurethane/intumescent topcoat DFT microns (or EN ISO 1461 hot-dip galvanising), EN 1090 execution class (EXC2/EXC3), WPS/WPQR and EN 10204 3.1 mill certificates.11.8 m for 40ft OT/HC containers vs 13.5 m for EU flatbed/curtainsider road trailers) and hard-stamped part marks matching the erection model.
Comparing two Turkish structural steel fabricators solely on a €/tonne rate is one of the costliest mistakes in industrial procurement. One bidder quotes bare shop-primed primary columns excluding foundation anchor bolts, 10.9 HV bolt sets, galvanized Z-purlins, NDT weld reports and container splice plates—while another prices a complete bolted structure with Sa 2½ 2-coat epoxy/PU paint, full EN 1090 traceability and coordinated sandwich-panel interfaces.
Our Quotation Comparison (€290) and Supplier Shortlist (€690) break out primary welded/rolled tonnage, secondary purlin tonnage, bolting & anchor tonnage, surface-coating systems, sandwich-panel cover m², skylights and industrial doors line by line.
During Technical Factory Reviews (€790) and Pre-shipment Checks (€490) across Kocaeli/Gebze, İstanbul, Sakarya, Bursa, Ankara and Tekirdağ steel plants, we verify CNC beam drilling/coping lines, submerged-arc welding setups, raw-steel heat numbers against EN 10204 3.1 mill certificates, dry-film paint thickness (DFT) spot gauges, hard-stamped erection piece marks and timber-dunnage bundle packing before truck or container loading (€390). Where accredited ultrasonic/magnetic-particle NDT weld inspection is required, we coordinate independent Level II/III specialists transparently.
| Code | Scoped Service / Package | Fee (EUR) | Standard scope & main limits | Action |
|---|---|---|---|---|
SS-BRIEF |
Technical RFQ Brief | €390 | 1 product family; up to 20 line items / 50 source pages; 1 revision; purchasing brief and supplier question list; no structural design | Select |
SS-SOURCE |
Supplier Shortlist | €690 | 1 product family / up to 10 line items; up to 5 candidates researched; target up to 3 suitable candidates; 1 RFQ round; no minimum matching supplier guarantee | Select |
SS-TECH |
Technical Factory Review | €790 | 1 building-product family; 1 site; up to 6 hours on site; up to 10 drawings / 50 document pages; scope-linked technical observations; no certification or engineering approval | Select |
SS-PRE |
Pre-shipment Check | €490 | 1 site / 1 order; up to 4 hours on site; up to 5 SKUs within agreed sampling checklist; no full-lot or accredited test guarantee | Select |
SS-LOAD |
Loading Observation | €390 | 1 truck or container; 1 location; up to 4 hours; identity, agreed count/packing observations and permitted photos; no cargo securing certification | Select |
Source galvanized Z/C/Sigma purlins, hollow structural tubes, cold-formed sections, brackets and custom steel assemblies for houses, warehouses and hangars.
Source PIR, PUR and mineral-wool roof & wall sandwich panels, trapezoidal sheets, standing-seam roofs and flashings for warehouses, hangars, villas and prefab buildings.
Source thermally broken aluminum & uPVC villa windows, armoured steel villa doors, fire doors and insulated sectional warehouse & hangar doors in Türkiye.
Source light-gauge steel (LGSF) houses, steel villas, structural framing kits and complete exterior/interior envelope material packages from Türkiye.
Yes. Most heavy steel fabricators manufacture the bolted steel frame in-house while buying sandwich panels and sectional/hangar doors from third parties with a markup. Through SerSourcing, you can contract directly with a vetted EN 1090 steel fabricator, a sandwich-panel producer and an industrial door manufacturer—synchronised via Multi-supplier Coordination (€790) or a 30-day Buying Office plan.
Clear-span rafters and columns are engineered with bolted end-plate splices so individual shipping segments stay under 11.8 m for 40ft High Cube / Open-Top sea containers or 13.5 m for European curtainsider/flatbed trailers. Confirming splice lengths before fabrication prevents costly oversize freight surcharges.
Yes. Under Supplier Desk Check (€190) or Technical Factory Review (€790), we check the fabricator’s EN 1090 scope/execution class (EXC2/EXC3), issuer details, welding procedure qualifications and mill-certificate traceability practices prior to contract award.
SerSourcing conducts architectural/engineering visual attendance, dimensional spot-checks, paint DFT readings and QC dossier review. Statutory NDT weld testing (UT/MT/RT) and structural code sign-off are performed by accredited third-party NDT laboratories—which we can coordinate separately at transparent cost.
Yes. Share the crane wheel loads, hook height, rail section and mezzanine live load (kN/m²) issued by your structural engineer, together with galvanized trapezoidal composite floor-deck sheets and shear studs if required.