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Core field area: İstanbul Anatolian & Kocaeli corridor · Outside corridor by agreed quote
SS-MULTI · Consolidation Sample SSR-2026-MLT-10 7 min read

Turnkey Steel Villa Multi-Supplier Consolidation Tracker Sample Report

Review how SerSourcing tracks fabrication readiness, drawing revision locks, pallet dimensions and sequential truck/container loading slots across multiple independent Turkish factories (SS-MULTI €790 / BO-15 €1,250).

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Founder Technical & Procurement Review Tariff & Scope Verified: 2026-11-02
Prepared by İdris YAĞMAHAN Architect
Reviewed by Celalettin YAĞMAHAN Civil Engineer

Reviewed for technical terminology, Turkish factory field reality and published EUR scope boundaries (not statutory engineering sign-off).

Active Corporate Specimen: SSR-2026-MLT-10 · 4-Factory Villa Tracker
Commission This Scope on WhatsApp
SerSourcing TECHNICAL SOURCING, FACTORY AUDIT & BUYING-OFFICE DIVISION
DOCUMENT CONTROL Page 1 / 2
Document Ref.
SSR-2026-MLT-10
Tariff / Scope
SS-MULTI (€790 / up to 3 POs) · BO-15 (€1,250 for 4+ Suppliers)
Issue / Revision
Rev. 02 · 2026-11-02
Classification
SPECIMEN · NDA ANONYMIZED

MULTI-FACTORY PRODUCTION & DISPATCH SYNCHRONIZATION DOSSIER

Consolidation Scope: 2 × Turnkey 165 m² Steel Villa Material Kits Across Framing, Envelope Boards, Windows & Entrance Doors (3 × 40' HC)

ILLUSTRATIVE CORPORATE SPECIMEN (ZERO CLIENT DATA DISCLOSED): Client names, factory identities, heat/certificate numbers and commercial figures in this specimen are fictionalized to protect strict B2B NDA confidentiality. Scoped commercial/visual engineering record — not an accredited laboratory test certificate or statutory structural sign-off.

01 · ASSIGNMENT REGISTER & EXECUTIVE GATE SUMMARY

Commissioning Buyer Profile [REDACTED — Residential Design-Build Developer, Balkans / EU]
Industrial Corridor & Travel Rule Tuzla (LGSF) + Bilecik/Gebze (Boards/Wool) + Pendik (ALU Windows & Doors)
Referenced Technical Standards Unified Rough-Opening Schedule Rev.04 · Synchronized FCA Loading Window · Combined Packing Tally
Verification Instruments & Basis Weekly Milestone Audit, Cross-Factory Rough-Opening Check, Cubic/Payload Stowage Plan
Standard Tariff & Turnaround 30-Day Coordination Window · Weekly Written Status Dossier (Week 3 of 4 Shown)
3 Active POs Synchronized Villa Factories
3 × 40' HC Planned Export Containers
€0 Demurrage Slot Re-Sequenced 6 Days Early
100% Matched Window-to-Stud Rough Openings
Executive Gate Recommendation: WEEK 3 SYNC ALERT — WINDOW GLAZING DELAYED 4 DAYS; CONTAINER #3 SLOT RE-SEQUENCED

Supplier 1 (LGSF steel framing) and Supplier 2 (Betopan + rockwool + membranes) are at 100% readiness for Container #1 and #2 next Tuesday. Supplier 3 (thermal-break aluminum windows + pivot doors) reported a 4-day tempered Low-E IGU kiln queue; Container #3 stuffing slot was proactively shifted from Wednesday to Monday to avoid €420/day port/truck demurrage.

02 · SCOPED TECHNICAL OBSERVATIONS, MEASUREMENTS & COMPARISON MATRIX

Ref. Subsystem / Inspection Parameter Buyer Specification / Benchmark Recorded Field / Desk Evidence Evidence Basis Required Buyer / Supplier Gate Action
SUP-01 Factory #1 — LGSF Structural Villa Framing (Tuzla) PO #V-101: 18.4 t C89/C140 S350GD+Z275 framing + trusses (Container #1) 100% roll-formed & strapped into 14 bundles (max 5.85 m); draft packing list weights & dimensions verified. Document Reviewed Ready for SS-PRE + Container #1 stuffing Tuesday 08:30.
SUP-02 Factory #2 — Betopan, Gypsum, Rockwool & Vapour Membranes (Gebze) PO #V-102: 22 pallets boards/insulation/screws (Container #2 + top-stow #1) 18/22 pallets shrink-hooded; remaining 4 façade rockwool pallets scheduled off line Friday 16:00. Supplier-Stated Obtain pallet photo + exact gross kg Monday morning before truck dispatch.
SUP-03 Factory #3 — Thermal-Break Aluminum Windows & Villa Pivot Doors (Pendik) PO #V-103: 26 window/slider frames + 2 steel pivot doors + 4 glass A-frames Frames crimped; tempered Low-E IGU sub-supplier confirmed delivery Friday instead of Monday (+4 days). Open / Hold Gate Shifted Container #3 booking to following Monday; book SS-PRE for Saturday/Monday AM.
DIM-04 Cross-Factory Architectural Rough-Opening Reconciliation LGSF stud window openings must exceed ALU outer frame by +15 mm installation gap Checked LGSF framing shop drawing Rev.04 vs ALU fabrication sheet: W-07 stairwell window had 0 mm tolerance — fixed before cutting. Document Reviewed Closed in Week 1; prevented major site framing rework.
LOG-05 Container #1–#3 Payload & Stowage Volume Allocation Max 26.0 t / 40' HC; heavy Betopan/LGSF bottom, light rockwool top-fill Container #1: 21.8 t (LGSF + 6 Betopan pallets); #2: 19.4 t (Betopan + gypsum + rockwool); #3: 11.2 t (ALU + A-frames + doors). Document Reviewed Issue final container-by-container loading sequence to forwarder.
DOC-06 Synchronized Export Customs & Multi-Supplier ATR / Invoice Pack 3 separate supplier invoices aligned with forwarder consolidated manifest Draft invoices & HS codes (7308 / 6811 / 7610) checked across all 3 suppliers; zero gross/net weight mismatch. Document Reviewed Lock final Bolt Seal numbers onto each supplier packing list on loading day.
Inspection & Sampling Basis

Scoped B2B visual field verification, random dimensional spot-sampling and documentary cross-check.

Metrology & Traceability

Field gauges zero-checked prior to measurement; heat/batch IDs cross-referenced against presented 3.1 MTCs.

Commercial Payment Gate Rule

Advance or balance wire release remains conditional upon closing all Open / Hold items logged on Sheet 2.

SerSourcing — Operated by CFY Mühendislik Mim. Dan. Yapı Malz. İnş. San. ve Tic. Ltd. Şti. · Maltepe, İstanbul SSR-2026-MLT-10 · Page 1 / 2
SerSourcing · CFY Mühendislik Mim. Dan. Yapı Malz. İnş. San. ve Tic. Ltd. Şti. CORPORATE ENGINEERING & PROCUREMENT DOSSIER — CONTINUATION SHEET
SSR-2026-MLT-10 Rev. 02 · 2026-11-02 Page 2 / 2

03 · CROSS-REFERENCED EVIDENCE & ANNEX REGISTER

SYNC-A1 Logged in Dossier
Master 4-Week Gantt & Readiness Milestone Tracker

Supplier-by-supplier readiness %, bottleneck flags and adjusted booking calendar.

RO-B2 Logged in Dossier
Cross-Supplier Rough-Opening Verification Table (W-01..W-26)

Side-by-side comparison of LGSF steel opening mm vs aluminum frame fabrication mm.

STOW-C3 Logged in Dossier
3 × 40' HC Container Weight & Pallet Allocation Matrix

Gross kg, pallet footprint (mm) and heavy-under-light stacking plan.

DOC-D4 Logged in Dossier
Multi-Supplier Export Invoice & HS Code Alignment Register

Pre-checked commercial invoice, packing list and ATR draft consistency log.

04 · OPEN-ITEMS ACTION REGISTER BEFORE COMMERCIAL RELEASE

Item ID Open Technical / Commercial Point Action Owner Target Release Gate
OI-01 Verify photo of final 4 shrink-hooded rockwool pallets at Factory #2 by Monday 11:00. Factory #2 Dispatch 24h Before Container #2
OI-02 Perform Pre-shipment Check (SS-PRE €490) on completed windows, IGUs and pivot doors at Factory #3. SerSourcing Field Architect Before A-Frame Sealing
OI-03 Confirm forwarder updated Container #3 gate-in cut-off to avoid storage/demurrage fees. Buyer Appointed Forwarder Confirmed in Writing

05 · EVIDENCE CLASSIFICATION KEY & CORPORATE SCOPE GOVERNANCE

Observed / Verified

Directly witnessed, counted or measured on site/desk by SerSourcing within the agreed assignment window.

Document Reviewed

Recorded from supplier-submitted certificates, MTCs or drawings without assuming physical lot testing.

Supplier-Stated

Verbal or written manufacturer statement recorded transparently; requires independent verification.

Open / Hold Gate

Unresolved technical or commercial hold item recommended for closure prior to stage payment/dispatch.

Governance & Independence Standard: Issued under buyer-representation tariff SS-2026-11-V2. Zero undisclosed supplier commission. Goods contracts, product warranties, accredited EN ISO/IEC 17025 lab testing and statutory engineering sign-off remain with the respective contracting parties and appointed specialists.

06 · DOCUMENT REVISION LOG & CONTROLLED DISTRIBUTION REGISTER

Rev. Date Revision Status & QA Milestone Authorized Distribution & Archive Retention
Rev. 01 2026-10-30 Initial field / desk observation log, dimensional check sheet & annex index. Internal Engineering Desk QA Review (Maltepe HQ)
Rev. 02 2026-11-02 QA-verified corporate engineering dossier & executive gate recommendation. Commissioning Buyer (1× Encrypted PDF + Annex ZIP) · 5-Yr NDA Archive

07 · BUYER CONTRACT, PAYMENT & DISPATCH SAFEGUARD PROTOCOL

GATE-01 Proforma & Technical Specification Rider

Bind verified steel grade, coating mass, tolerances and export packing rules directly into the signed Proforma Invoice.

GATE-02 Lot-Specific Certificate & Export Pack

Verify batch-allocated EN 10204 3.1 MTC, CE DoP, packing list and draft A.TR/EUR.1 48h prior to balance wire.

GATE-03 Pre-Shipment & Loading Gate Witness

Confirm final piece count and dunnage via SS-PRE (€490) or SS-LOAD (€390) before high-security bolt seal closure.

GATE-04 Strict NDA & Zero-Commission Mandate

Issued exclusively for commissioning buyer internal governance; SerSourcing accepts zero supplier commission (0%).

Prepared By (Field / Desk Lead) Celalettin YAĞMAHAN Civil Engineer · Co-Founder
Maltepe, İstanbul · 2026-11-02
Technical Quality Review By İdris YAĞMAHAN Architect · Co-Founder
QA Control · SSR-2026-MLT-10
Corporate Verification Seal
Tariff SS-2026-11-V2 · MERSİS: 0209128951200001 · Tax ID: 2091289512 · sersourcing.com SSR-2026-MLT-10 · Page 2 / 2

Why Multi-Supplier Villa & Project Packages Fail Without a Local Synchronization Desk

A complete steel villa or modular building package rarely comes from a single Turkish factory: roll-formed LGSF steel comes from a framing plant, Betopan and rockwool from board/insulation plants, and RAL 7016 thermal-break windows from an architectural fenestration shop.

Without Multi-supplier Coordination (SS-MULTI €790 for up to 3 suppliers; BO-15 €1,250 / BO-30 €2,250 for larger matrices), one 4-day glazing delay leaves two other factories’ trucks incurring daily waiting penalties at port, or window frames arrive 10 mm wider than the steel stud openings.

  • Reconciles rough-opening dimensions (mm) between the steel framing detailer and the window/door fabricator before cutting.
  • Tracks weekly factory milestones, separating verified packing lists from optimistic verbal promises.
  • Balances heavy (LGSF, Betopan, marble) and high-volume (rockwool, PIR panels) cargo across containers.
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Clear Boundaries & Scope Answers

Frequently Asked Questions

SS-MULTI (€790) covers remote coordination of up to 3 Turkish suppliers / 3 purchase orders and 1 combined dispatch plan over a 30-calendar-day window. For 4–6+ active suppliers, our 30-day Buying-Office plans (BO-15 €1,250 or BO-30 €2,250) provide wider ongoing capacity.

Fixed EUR Schedule · Free Initial Scope Review

Move your Türkiye purchase forward with a defined scope

Share your product specification, drawing or Turkish supplier details to receive a clear written scope and EUR fee confirmation before work starts.

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