Test any Turkish steel house, prefab cabin or industrial hangar proforma invoice in 60 seconds to uncover unspecified Z100 zinc coatings, catalog snow loads, EPS panel downgrades, excluded anchor bolts and container splice traps.
Reviewed for technical terminology, Turkish factory field reality and published EUR scope boundaries (not statutory engineering sign-off).
Tick the technical items that are EXPLICITLY written (not verbally promised) in your Turkish supplier quotation:
Indicative engineering planning tool — final packing list, axle/container payload and customs classification must be confirmed against signed shop drawings, mill weights and your customs broker.
International buyers frequently receive three quotations for a 200 m² steel villa or a 1,500 m² steel warehouse ranging from suspiciously cheap to premium engineered—yet all three PDFs say *"Galvanized Steel Structure + Insulated Panels"*. In over 80% of cases, the price gap is driven by unwritten specification omissions rather than factory profit margin.
| Specification Item | Vague Headline Proforma (High Risk) | Normalized Specification (Buyer Protected) |
|---|---|---|
| LGSF / Purlin Steel | "Galvanized profile 1.0 mm" (often DX51D+Z100) | EN 10346 S350GD+Z275 (350 MPa yield, 275 g/m² zinc) + 3.1 MTC |
| Structural Design Basis | Standard Turkish Zone 1 catalog (75 kg/m² snow) |
Site-specific Eurocode snow/wind/seismic load calculation report |
| Roof & Wall Cladding | "50 mm Sandwich Panel" (EPS foam, 0.35 mm skin) | 80–100 mm PIR (B-s1,d0) or Rockwool (A1), 0.50/0.45 mm RAL 9002 |
| Connections & Anchors | Foundation anchors & 8.8/10.9 bolts silently excluded | Anchor bolts, base templates, 8.8/10.9 HV bolts & EPDM screws itemized |
| Shipping Geometry | 13.5 m welded rafters (forces costly Open-Top freight) | Engineered bolted splices <= 11.80 m for standard 40' HC containers |
| Code | Scoped Service / Package | Fee (EUR) | Standard scope & main limits | Action |
|---|---|---|---|---|
SS-COMPARE |
Quotation Comparison | €290 | Up to 3 quotations; up to 10 comparable line items; 1 clarification round; technical/commercial comparison; no supplier search | 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 |
PK-SOURCE |
Source & Visit | €1,290 | Combines Supplier Shortlist (1 product family) + Quotation Comparison (up to 3 offers) + 1 selected Core-Area Factory Visit. | 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 |
Normalise up to 3 Turkish supplier quotations across up to 10 line items—aligning units, dimensions, grades, inclusions and Incoterms.
Commercial and engineering breakdown of the 12 specification omissions that distort Turkish steel house, prefab and hangar quotations.
Normalise sheet areas, linear weights, material grades, accessories, packaging and delivery terms before ranking Turkish supplier offers.
Estimate your EUR service subtotal from the verified EUR tariff with automatic bundle deduplication, travel checks and WhatsApp transfer.
Always before signing the proforma invoice or wiring an advance deposit. Once a 30%–50% deposit is transferred on a vague 1-page proforma, clarifying Z275 zinc mass, PIR core density or anchor bolts almost always triggers variation surcharges.
We normalize up to 3 supplier quotations line-by-line into an apples-to-apples matrix covering material grades, thicknesses, standards, included/excluded accessories, packaging, Incoterms, lead times and open technical questions.
Capable export manufacturers welcome structured engineering clarifications because it prevents disputes at pre-shipment inspection; evasive or purely trading intermediaries quickly reveal themselves when asked for heat MTCs and coating specs.
Never under buyer representation. You pay our fixed EUR service fee (SS-COMPARE €290 or PK-SOURCE €1,190), and 100% of any commercial savings or specification upgrades remain directly on your factory invoice.
Yes. Pair SS-BRIEF (€390 Sourcing Brief Structuring) or SS-TECH (€340 Technical Alignment) with SS-COMPARE (€290) so suppliers price the exact same technical baseline.