The 5 Components of Structural Steel Cost
Every structural steel budget has five cost layers that should be estimated separately:
1. Material — shapes, plates, bolts, weld consumables
2. Fabrication — cutting, drilling, welding, assembly
3. Coatings — primer, paint systems, galvanizing, fireproofing
4. Freight — shop to site delivery
5. Erection — crane time, field connections, bolt torquing
Material Costs — September 2026
| Product | $/ton (FOB mill) | $/lb |
|---|
| W-shapes (W8-W36) | $1,050 – 1,200 | $0.53 – 0.60 |
|---|---|---|
| HSS rectangular | $1,150 – 1,350 | $0.58 – 0.68 |
| HSS round (pipe) | $1,200 – 1,400 | $0.60 – 0.70 |
| Plate (A36/A572-50) | $1,000 – 1,150 | $0.50 – 0.58 |
| Angles | $1,050 – 1,200 | $0.53 – 0.60 |
| Channels | $1,100 – 1,250 | $0.55 – 0.63 |
| A325 bolts (per 100) | $180 – 280 | — |
Fabrication Costs
| Complexity | $/ton | Shop Hours/ton |
|---|
| Light (simple beams, braces) | $600 – 900 | 15-25 |
|---|---|---|
| Medium (moment frames, misc) | $900 – 1,400 | 25-40 |
| Heavy (special connections) | $1,400 – 2,400 | 40-80 |
| Very heavy (nodes, curves) | $2,400 – 4,000 | 80-150 |
Labor rates for certified welders and fitters in the US average $35-55/hour including benefits.
Coating Costs
| System | $/sq ft | $/ton (approx) |
|---|
| Shop primer only | $0.30 – 0.50 | $80 – 130 |
|---|---|---|
| Full paint system (primer + topcoat) | $1.20 – 2.00 | $250 – 450 |
| Hot-dip galvanizing | $1.50 – 2.50 | $350 – 600 |
| Intumescent fireproofing (1-hr) | $2.50 – 4.50 | $550 – 1,000 |
| Intumescent fireproofing (2-hr) | $4.50 – 7.00 | $1,000 – 1,600 |
Conversion: 1 ton of open sections ≈ 400-500 sq ft of surface area.
Freight Costs
| Distance | $/ton |
|---|
| Local (< 50 miles) | $30 – 60 |
|---|---|
| Regional (50-200 miles) | $60 – 120 |
| Long haul (200-500 miles) | $100 – 200 |
| Cross-country (500+ miles) | $180 – 350 |
Oversized pieces (> 60 ft) require permits and escorts, potentially doubling freight cost.
Erection Costs
| Project Type | $/ton Erection |
|---|
| Simple warehouse/industrial | $400 – 650 |
|---|---|
| Low-rise commercial (1-4 stories) | $650 – 1,000 |
| Mid-rise (5-12 stories) | $1,000 – 1,500 |
| High-rise (12+ stories) | $1,400 – 2,200 |
| Special structures | $1,600 – 3,000+ |
Typical erection rate: 8-20 tons/day per crane and crew, depending on piece count and complexity.
Total Installed Cost Summary
| Component | Low ($/ton) | Mid ($/ton) | High ($/ton) |
|---|
| Material | $1,050 | $1,150 | $1,300 |
|---|---|---|---|
| Fabrication | $600 | $1,000 | $1,800 |
| Coatings | $80 | $300 | $800 |
| Freight | $50 | $100 | $200 |
| Erection | $500 | $900 | $1,600 |
| Total | $2,280 | $3,450 | $5,700 |
The AISC national average for structural steel in place is approximately $3,200-3,800/ton for typical commercial construction.
Cost Trends: 2024-2026
| Year | Avg Material ($/ton) | Avg Fabrication ($/ton) | Avg Erection ($/ton) |
|---|
| 2024 | $1,050 | $950 | $850 |
|---|---|---|---|
| 2025 | $1,100 | $1,000 | $900 |
| 2026 | $1,120 | $1,050 | $950 |
Costs have risen 5-8% over the past two years, driven primarily by labor costs in fabrication and erection.
Budget with IronBid
IronBid extracts complete material takeoffs from BIM models, applies fabrication costs based on connection complexity, and generates professional proposals broken down across all five cost components. Price catalogs update monthly.
Frequently Asked Questions
How much does structural steel cost per ton installed in the US?
In 2026, the typical range is $2,800 to $4,500 per ton installed for commercial construction. Simple industrial structures can be as low as $2,300/ton, while complex high-rises exceed $5,000/ton.
What percentage of cost is labor?
Fabrication and erection labor combined typically represent 45-55% of the total installed cost. For complex projects with heavy welding, labor can reach 60%.
Are structural steel prices going up in 2026?
Material prices have been relatively stable, but fabrication and erection costs continue to rise at 3-5% annually due to skilled labor shortages in the US construction industry.