Steel Home Engineering, Quantity & Cost Estimator

Calculate structural steel tonnage, rockwool volume, triple glazing area, freight trucks, and estimated budget ranges based on your building footprint in real time.

Important Note: Veranda, garage, terrace, pool, BASEMENT FLOOR, etc. are NOT included in areas & PRICES. Semi-detached / twin models: 1 unit basis.

1. Project Parameters & Configuration

Eurocode 3 S350GD Passivhaus PHPP ATR / EUR.1 Duty-Free
184 m²
All values and budgets recalculate in real-time as parameters change.

2. Preliminary Engineering & Budget Takeoff

Eurocode 3 (EN 1993-1-3) • Passivhaus Institut PHPP • CE Onaylı Fabrika İmalatı
P3 Weather-Tight Shell (Recommended) KfW 40 / QNG Eligible
CFS Steel Frame
~8.1 Ton
S350GD • 44 kg/m²
Insulation Included
300 mm
~100.2 m³ rockwool
Triple Glazing Included
~36.8 m²
≤ 0.80 W/m²K (Passivhaus)
Site Logistics Volume Governed (Rockwool & Glazing)
~2 Megatrailer Trucks
~6.400 € • ~28.1 t / ~160.6 m³
Envelope Surface Takeoff ~230 m² wall + ~106 m² roof
Floor Cassette Area ~92 m²
Erection Duration 9 - 12 days erection

Architectural Component Layers & Logistics BOM

Detailed layer-by-layer weight and volume takeoff (exterior walls, roof, floor cassette, partitions):

DIN 4108 & EC3 Compliant
Component Layer Specification & Materials Surface Weight Volume
Structural Steel Frame (S350GD)
P1-P4
C140 studs, flat roof parapet & floor joists, anchors (1.00x) 184 m² ~8.1 t ~18.0 m³
Exterior Wall Layers (Compact)
p3
12.5mm BoardeX + 140mm wool + Vapour barrier + 160mm EIFS rockwool (Total 300mm) + Render ~230 m² ~11.1 t ~61.7 m³
Roof Assembly (Flat Roof)
p3
18mm OSB-3 + 200mm wool + 120mm cross wool (Total 320mm) + Parapet, slope battens & TPO/EPDM membrane ~106 m² ~4.2 t ~41.1 m³
Intermediate Floor Layers
p3
22mm OSB-3 deck + 100mm acoustic wool (Rw≥60 dB) ~92 m² ~1.7 t ~11.2 m³
Interior Partitions
Bauseitig
Excluded (Included in P4) — — —
Windows & Doors Assembly
P3-P4
Ug=0.50 W/m²K triple certified glazing (Uw≤0.80) + Passive entry door Ud≤0.80 + 2 A-Frames ~36.8 m² + Kapı ~2.6 t ~24.8 m³
Fasteners, Seismic Anchors & Airtight Kit
P1-P4
M16 chemical anchor bolts, hold-down brackets, frame screws, Tescon airtight tapes (n50 ≤ 0.60 h⁻¹) 184 m² ~0.5 t ~3.8 m³
TOTAL FREIGHT LOAD & TRUCK CAPACITY ANALYSIS
Megatrailer Constraints: Max 23.5 Tons Payload | Max 90.0 m³ Usable Volume
Total: ~28.1 t ~160.6 m³
Governing Logistic Limit: Volume Governed (Rockwool & Glazing) 2 Megatrailer Trucks Required
Delivered Project Budget Estimate
Factory Fabrication + Site Logistics
1. Off-Site Fabrication & Materials
P3 Weather-Tight Shell (Recommended) • Geometry: Compact Form (+0%) (1.00x) • 2 Storeys (+3% Floor) • Passivhaus: 1.05x • Climate: 1.00x
~117.392 – 155.296 €
(638 – 844 €/m²)
2. International Freight Dispatch to Site
~2 Mega-trailer Truck(s) • Germany • ATR Certificate (Duty-Free EU) • ~28.1 Ton / ~160.6 m³
+6.400 €
Direct to site freight
Total Turnkey Delivered Budget
673 – 879 €/m²
~123.792 – 161.696 €
Budget Component Breakdown
Steel Frame: 25%
Envelope/Ins: 28%
Glazing: 16%
Freight: 8%
Erection: 23%
Annual Energy Cost Savings
Calculated with destination country power tariff
85%+ Savings
~7.728 € / year
approx. €154.560 cumulative savings in 20 years • 4.3 Tons CO₂ offset
Important Note: Veranda, garage, terrace, pool, BASEMENT FLOOR, etc. are NOT included in areas & PRICES. Semi-detached / twin models: 1 unit basis.
* Preliminary feasibility estimate. Final structural tonnage, U-values and pricing depend on site geotechnical data and certified shop drawings.

Engineering Standards & Calculation Methodology

Our calculation engine is built on deterministic engineering rules according to Eurocode 3, DIN 4108, and Passivhaus Institut PHPP benchmarks.

Eurocode 3 (EN 1993-1-3)

Cold-formed S350GD structural profiles. 38 to 49 kg/m² depending on storeys, with 0 mm structural settlement.

DIN 4108 & PHPP

Thermal-bridge-free envelope, U < 0.15 W/m²K rockwool exterior wrap, airtightness n50 ≤ 0.6 ACH.

Megatrailer Logistics (24t & 100 m³)

Truck counts calculated via real physical constraints: CFS steel weight, rockwool volume, and dedicated glazing A-frame stillages. Duty-free ATR & EUR.1.

20-Year Lifecycle ROI

Reduces operational space conditioning demand from 120 to 15 kWh/m²a. Up to 85% energy savings, paying back shell premiums in 6-8 years.

Delivery Package Scope Matrix

Full Package Matrix →
Scope Component P1 (Structural Frame) P2 (Frame + Insulated) P3 (Weather-Tight - Recommended) P4 (Complete Package)
Structural CFS Frame ✓ Included ✓ Included ✓ Included ✓ Included
140mm Cavity Rockwool ✗ Excluded ✓ Included ✓ Included ✓ Included
Continuous Exterior Insulation ✗ Excluded ✗ Excluded ✓ Included ✓ Included
Triple-Glazed Windows ✗ Excluded ✗ Excluded ✓ Included ✓ Included
Interior Partitions & Doors ✗ Excluded ✗ Excluded ✗ Excluded ✓ Included
Cost Baseline 190 – 250 €/m² 340 – 430 €/m² 590 – 780 €/m² 980 – 1.290 €/m²

Frequently Asked Questions

Essential answers regarding steel construction, energy targets and project delivery.

P1 includes the precision manufactured structural steel frame and shop drawings. P2 adds external structural board sheathing, cavity insulation between studs, and moisture-control membranes.

P3 provides a fully weather-tight exterior envelope, including external continuous insulation, exterior finish infrastructure, roof waterproofing, and high-performance exterior windows and entrance door.

No. In all packages, excavation, ground engineering, and concrete foundations are local responsibilities managed by the client or local contractor.

Yes. While the package matrix sets clear baseline responsibilities, specific scopes (such as supply-only vs supply + erection supervision) are confirmed in the quotation.

MEP engineering and installations can be coordinated either through SerVilla project kits or through your local certified trade partners depending on the contract agreement.

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