We engineer and roll-form high-tensile S350GD structural steel building kits to Eurocode 3 (EN 1993-1-3) and AISI S100. Every profile is CNC pre-punched, inkjet-coded, packed into 40ft High Cube containers, and assembled on site with Grade 8.8 bolts — without welding.
Preliminary Bill of Materials (BOM) & 40ft HC Packing Manifesto
Laser-Cut S355JR Galvanized Gusset, Apex & Base Plates (6–12 mm)
837 kg
BOM-05
Grade 8.8 HDG Structural Bolts & EPDM Screws
EN ISO 898-1 Grade 8.8 HDG Structural Bolts + EPDM Self-Drilling Screws
1,953 + 4,950 pcs
BOM-06
M16 / M20 Galvanized Foundation Anchor Studs
M16 / M20 Galvanized Mechanical & Chemical Foundation Anchor Studs
36 pcs
BOM-07
Laminated A3 Assembly Blueprints & BIM IFC Model
Laminated A3 Assembly Blueprints, Inkjet Part Index & Torque Schedule
2 Sets + IFC/PDF
Preliminary Engineering Estimator
Steel Tonnage, 40ft HC Container & FOB Budget Calculator
Configure building division, gross area, eave height or storeys, climate load, and delivery scope for an immediate engineering estimate.
Est. Net Galvanized Steel
13.77 t (30.6 kg/m²)
40ft High Cube Containers
1× 40ft HC
Bolted Site Erection
5 Crew × 9 Days
HS Code & Metallurgy
HS 7308.90 · S350GD + Z275
Indicative FOB Istanbul Range
$18,800 – $23,900 USD
Indicative engineering estimate for standard site parameters. Binding proforma pricing is issued after verifying project coordinates and local snow/wind/seismic codes.
Why does SerSteelFrame specialize 100% in Cold-Formed (CFS) & Light Gauge Steel (LGS) instead of heavy welded steel?
Up to 24m clear span, bolted S350GD cold-formed portal and lattice truss structures are 35–45% lighter than welded hot-rolled I-beams, pack up to 3× more building area into a single 40ft High Cube container, require zero on-site welding or touch-up painting, and reduce concrete foundation loads by up to 50%.
How many square meters of steel framing fit into one 40ft High Cube container?
In P1 Structural Frame Only scope, one 40ft HC container (max 11.85m bundle length, 24.5 tons net payload) accommodates approximately 400–550 m² of CFS warehouse framing, 240–300 m² of two-story LGS residential framing (or up to 6–7 compact 45 m² ADU frames), or up to 1,200 m² of CNC roof trusses.
Which customs HS Code applies when importing steel building kits from Türkiye?
Structural steel frame-only kits (P1) typically clear customs under HS Code 7308.90, whereas complete prefabricated weather-tight shell or modular camp kits (P2/P3/P4) are classified under HS Code 9406.90. For European Union buyers, industrial steel kits shipped from Türkiye with an A.TR Movement Certificate benefit from 0% preferential customs duty.
Is any welding or heavy crane equipment required on our construction site?
Zero site welding is required. Every column, truss chord, stud, and laser-cut gusset plate is CNC pre-punched and inkjet-labeled in our production lines. Local crews assemble the kit using calibrated torque wrenches, Grade 8.8 HDG structural bolts, and EPDM self-drilling fasteners.
Which international structural design codes do your engineering calculations follow?
Depending on your project country, our Istanbul structural engineering desk designs to Eurocode 3 (EN 1993-1-3) and Eurocode 8 (seismic), AISI S100 / IBC (Americas & Caribbean), BS EN / SCI P402 (UK), DTU 32.3 (France), NTC 2018 (Italy), or Saudi Building Code (SBC).
What corrosion protection do you provide for coastal, island, or high-humidity climates?
Standard inland kits use S350GD + Z275 (275 g/m² hot-dip zinc). For coastal sites (<5 km from seawater), Caribbean islands, West Africa, or high-humidity industrial washes, we upgrade the framing to ZM310 (Zinc-Aluminum-Magnesium / Magnelis) for C4–C5 marine corrosion resistance.
Can we send our own architectural DWG, Revit, or PDF plans for custom OEM manufacturing?
Yes. Developers, architects, and general contractors regularly submit custom architectural drawings. Under our P0 Engineering Package, we convert your plans into a 3D BIM LGS/CFS structural model, issue static reports, and credit the engineering fee toward your P1–P4 kit production order.
What payment terms and pre-shipment quality inspections are available for international orders?
We work with standard T/T milestone transfers (typically 40% manufacturing deposit, 60% prior to container sealing upon inspection) and irrevocable L/C for large camp or fleet contracts. Every coil carries an EN 10204 3.1 mill test certificate, and third-party SGS/Bureau Veritas or live video trial-assembly inspections are welcomed before loading.
FOB / CIF PROFORMA DESK
Request Itemized Proforma, BOM & 40ft HC Loading Plan
Send your destination country/port, required dimensions, or architectural DWG/PDF files directly to our structural export engineers in Istanbul.