Vom 3D-Tekla-Modell über die CNC-Fertigung bis zur Baustelle: Zeitpläne und Meilensteine im Überblick.
Total lead time for an engineered prefabricated steel building in Europe averages 4 to 6 weeks from contract execution to jobsite delivery. The timeline is divided into five parallel phases: 1) Structural Modeling & Approval (Days 1–7), 2) Tekla 3D Shop Detailing (Days 8–14), 3) CNC Automated Roll-Forming & Robotic Welding (Days 15–28), 4) Shot-Blasting, Coating & Container Packing (Days 29–33), and 5) Ocean/Road Freight (Days 34–42). Crucially, prefabricated steel allows civil foundation pouring to proceed concurrently on site while the superstructure is manufactured in the factory, reducing overall project schedules by 50% to 70% compared to cast-in-place concrete.
Prefabricated steel construction compresses the traditional construction cycle by decoupling factory manufacturing from on-site civil works:
The table below compares the end-to-end timeline for constructing a 2,000 m² commercial facility across different structural framing materials:
| Construction Phase | SerBuild Prefab Steel | Precast Concrete Frame | Traditional In-Situ Concrete | Timber / Glulam Frame |
|---|---|---|---|---|
| Engineering & Shop Drawings | 1 – 2 Weeks | 3 – 5 Weeks | 4 – 6 Weeks | 3 – 5 Weeks |
| Foundation Groundworks | 2 – 3 Weeks (Parallel) | 3 – 4 Weeks | 4 – 6 Weeks (Sequential) | 2 – 3 Weeks (Parallel) |
| Off-Site Factory Fabrication | 2 – 3 Weeks (Parallel) | 4 – 8 Weeks | N/A (Wet cast on site) | 3 – 6 Weeks |
| Transportation to Site | 4 – 10 Days | 1 – 2 Weeks (Heavy) | Continuous concrete mixers | 1 – 2 Weeks |
| Superstructure On-Site Erection | 2 – 3 Weeks | 4 – 6 Weeks | 12 – 18 Weeks (Curing) | 3 – 5 Weeks |
| Total Project Duration to Lockup | 5 – 7 Weeks Total | 12 – 16 Weeks Total | 20 – 28 Weeks Total | 10 – 14 Weeks Total |
| Building Size / Scale | Engineering & 3D BIM | Factory CNC Fabrication | European Transit Time | Total Lead Time (Ex-Works to Site) |
|---|---|---|---|---|
| Small Workshop (500 m²) | 3 – 5 Days | 10 – 14 Days | 4 – 7 Days | 3 – 4 Weeks |
| Medium Logistics Hub (1,500 m²) | 5 – 7 Days | 14 – 20 Days | 5 – 8 Days | 4 – 5 Weeks |
| Heavy Factory with Cranes (3,000 m²) | 7 – 10 Days | 20 – 28 Days | 6 – 10 Days | 5 – 6 Weeks |
| Multi-Bay Industrial Park (10,000 m²) | 10 – 14 Days | 30 – 45 Days (Phased) | Phased weekly shipments | 6 – 9 Weeks (First phase in 4 wks) |
Sign commercial agreement and release initial engineering advance payment.
Local civil contractor starts earthworks and pours concrete footings.
Client approves architectural openings; NC files sent to robotic CNC lines.
Third-party notified body or client inspects welds and paint thickness (DFT).
40ft HC containers loaded and dispatched with live GPS vessel tracking.
Containers arrive on site on the exact date concrete foundations are fully cured.
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Yes. This is the single biggest time-saving advantage of prefabricated steel construction. Within 5 to 7 days of contract signing, SerBuild issues exact foundation reaction forces and anchor bolt templates, allowing your civil contractor to complete the slab during factory fabrication.
For urgent fast-track projects (e.g. fire recovery or urgent tenant lease commitments), SerBuild offers an expedited 3-week production turnaround for standard clear-span warehouse packages up to 2,000 m².
The most common delays stem from late client approval of architectural door/window opening locations, delays in local municipal building permits, or extreme adverse weather preventing crane lifting during on-site erection.
Yes. Elements are treated with multi-coat epoxy primer or hot-dip galvanizing and wrapped in polyolefin film. Components can be safely stored on outdoor jobsite staging beds for up to 3 to 6 months prior to erection.
With a standard 5-man certified rigging crew and a 40t mobile crane, the primary structural steel skeleton is erected in 7 to 10 working days, and the insulated sandwich panel envelope is installed in an additional 8 to 12 days.
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