One of the most common questions from project owners, contractors, and procurement teams in India is: what is the cost of structural steel fabrication per kg? The answer varies significantly with structure type, complexity, quantity, and location — but this guide gives you accurate 2025 reference ranges so you can budget your project confidently.
Structural Steel Fabrication Cost Per Kg India — 2025
| Structure Type | Fabrication Only (₹/kg) | Fabrication + Paint (₹/kg) | Turnkey (₹/kg incl. erection) |
|---|---|---|---|
| Simple portal frame shed | ₹65–₹85 | ₹75–₹100 | ₹95–₹130 |
| Industrial shed (with crane) | ₹75–₹100 | ₹88–₹118 | ₹110–₹155 |
| Roof truss (angle/hollow section) | ₹80–₹110 | ₹95–₹130 | ₹120–₹165 |
| Plate girder / built-up section | ₹95–₹140 | ₹110–₹160 | ₹140–₹200 |
| Mezzanine floor structure | ₹90–₹120 | ₹105–₹140 | ₹130–₹175 |
| Pedestrian bridge / FOB | ₹100–₹150 | ₹115–₹170 | ₹145–₹210 |
| Miscellaneous / platforms | ₹110–₹160 | ₹125–₹180 | ₹155–₹220 |
| Pipe rack structure | ₹100–₹145 | ₹115–₹165 | ₹145–₹205 |
Fabrication rates above are for workshop fabrication only and exclude steel material cost. Steel material (IS 2062 E250) as of May 2025: ₹55,000–₹65,000 per tonne ex-mill. All rates are indicative — actual quotes depend on quantity, complexity, location, and market conditions.
Steel Material Cost India — 2025 Reference
| Steel Product | Grade | Price Range (₹/tonne) | Notes |
|---|---|---|---|
| HR plates (structural) | IS 2062 E250 | ₹55,000–₹62,000 | Ex-mill, varies with thickness |
| HR plates (higher grade) | IS 2062 E350 | ₹58,000–₹66,000 | Premium over E250 |
| UC/UB sections | IS 2062 E250 | ₹57,000–₹65,000 | SAIL/JSW standard sections |
| Angles and channels | IS 2062 E250 | ₹56,000–₹63,000 | Most common for trusses |
| Hollow sections (CHS/RHS) | IS 4923 | ₹60,000–₹72,000 | Premium over open sections |
| Chequered plate | IS 3502 | ₹60,000–₹68,000 | For mezzanine decks, platforms |
How to Calculate Total Structural Steel Project Cost
Total structural steel project cost = Steel material + Fabrication + Surface treatment + Transport + Erection + Preliminaries. A simple rule of thumb for budgeting:
- Material cost: Steel weight (tonnes) × ₹58,000–₹65,000/T
- Fabrication cost: Steel weight × ₹70,000–₹1,40,000/T depending on complexity
- Paint cost: Steel weight × ₹8,000–₹18,000/T depending on paint system
- Transport: ₹3,000–₹8,000/T depending on distance
- Erection: ₹15,000–₹40,000/T depending on height and complexity
- Total erected and painted: Typically 2.2–2.8× the material cost for standard industrial structures
Steel Structure Weight — Quick Reference
To estimate steel weight for budget purposes before detailed design:
| Structure Type | Span | Steel Weight (kg/m² floor area) |
|---|---|---|
| Light industrial portal frame shed | 15–20m | 18–28 kg/m² |
| Standard industrial portal frame | 20–30m | 25–40 kg/m² |
| Truss-roof factory (no crane) | 25–40m | 30–50 kg/m² |
| Crane-served factory (EOT 10T) | 20–30m | 40–65 kg/m² |
| Mezzanine floor (light storage) | 6–9m bays | 35–55 kg/m² mezzanine area |
| Multi-storey office frame | 8–12m | 45–70 kg/m² |
Example: 5,000 m² industrial shed, 25m span, no crane → estimated steel weight = 5,000 × 32 kg/m² = 160 tonnes. Budget cost (turnkey): 160T × ₹1,20,000/T = ₹1.92 Crore approximately.
What Affects Steel Fabrication Cost Per Kg?
- Complexity: Simple portal frames cost less per kg than complex truss joints or plate girders — more cuts, welds, and joints per tonne of steel increases cost.
- Quantity: Larger quantities allow more efficient workshop setup — cost per kg typically reduces 10–20% for orders above 100 tonnes.
- Section type: Hollow sections (CHS/RHS) are more expensive to fabricate per kg than open sections (angles, channels, I-beams) due to end-preparation complexity.
- NDT requirements: Full RT and UT on all welds adds ₹8,000–₹20,000/T to fabrication cost.
- Surface treatment specification: Zinc-rich primer + high-build epoxy + PU finish (C5 system) costs 2–3× more than standard primer + finish (C3 system).
- Lead time: Urgent orders with compressed lead times attract 10–25% premium.
Get an Accurate Steel Fabrication Quotation
Budget estimates based on kg/m² and cost-per-kg ranges are useful for early project planning but should always be validated with a detailed quotation from your fabricator before project commitment. Suncorporation Fabricators & Engineers provides detailed lump sum and item-rate quotations for all structural steel fabrication and erection scopes across India.
Send us your structural drawings or project scope for an accurate fabrication and erection quotation — we cover Hyderabad, Bengaluru, Chennai, Mumbai, Delhi NCR, Kolkata, Pune, Ahmedabad, and all major Indian industrial cities.