Structural Weld Cost

Structural Fabrication Cost Example — $2,800/ton Midwest

A three-shop Midwest fabricator used IronKit to benchmark their cost-per-ton across a 40-ton structural warehouse job. The breakdown landed at $2,800/ton all-in: $1,700/ton for steel material (A992 W-shapes at $0.85/lb), $800/ton for labor (shop fabrication + field erection blended), and $300/ton for consumables (wire, gas, hardware, primer). At this rate, they were competitive with the Midwest market range of $2,600–$3,200/ton for delivered and erected structural packages. IronKit's per-ton view helped them identify that their primer and galvanizing cost was running 15% above benchmark due to subcontractor markup.
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Weld Cost Breakdown — Generated by IronKit

Job Parameters

Tonnage40 tons — ASTM A992 W-shapes + A36 plate
RegionMidwest (Ohio / Indiana / Michigan)
Shop Rate$72/hr fabrication, $85/hr field erection
Blended Labor Hours5.5 shop hr/ton + 2.0 field hr/ton = 7.5 hr/ton
Steel Price (2026)$0.85/lb ($1,700/ton)
WireER70S-6 0.045" GMAW, FCAW-G dual-shield
PrimerSSPC-SP6 commercial blast + 2-mil alkyd

Cost Breakdown

Cost ComponentFormula / BasisUnit CostTotal
Steel material (A992 + A36)$0.85/lb × 2,000 lb/ton$1,700.00$1,700.00
Shop fabrication labor5.5 hr/ton × $72/hr$396.00$396.00
Field erection labor2.0 hr/ton × $85/hr$170.00$170.00
Welding consumables (wire, gas)Per-ton basis GMAW/FCAW$145.00$145.00
Hardware (bolts, clips, anchor rods)Per-ton estimate$85.00$85.00
Primer coat (SSPC-SP6, 2 mil)Per-ton shop-applied$72.00$72.00
Overhead allocationIncluded in labor rates above$0.00$0.00
Total Direct Cost$2,568.00
Overhead (9%)$231.00

Per-Unit Cost Summary

Steel material per ton$1,700
Labor per ton (blended)$566
Consumables + hardware per ton$302
Total direct cost per ton$2,568
With 9% overhead$2,799/ton ≈ $2,800/ton
Midwest market range (2026)$2,600 – $3,200/ton delivered + erected

Frequently Asked Questions

What drives the most variability in $/ton cost?
Labor hours per ton. Shops that build complex connections, short members, or difficult geometry spend 8–12 hr/ton in the shop versus 4–6 hr/ton for simple beams and columns. The steel cost ($1,700/ton) is relatively fixed — it's the labor hours that separate competitive shops from losers.
Is $2,800/ton competitive for the Midwest in 2026?
Yes. The 2026 Midwest range for shop-fabricated and field-erected structural steel is roughly $2,600–$3,200/ton delivered. Shops at $3,500+/ton are uncompetitive on larger jobs unless they bring specialty capability (galvanizing, complex geometry, tight schedule). Shops at $2,400/ton are leaving margin on the table.
How many labor hours per ton should I budget?
Simple beams and columns: 4–5 hr/ton. Mixed structural packages (stairs, mezzanines, connections): 6–8 hr/ton. Ornamental and misc metals: 10–15 hr/ton. These are shop hours only — field erection adds 1.5–3 hr/ton depending on job complexity.
How does IronKit calculate cost per ton?
IronKit takes the total job cost (materials + labor + consumables + overhead) and divides by the structural steel tonnage you enter. The per-ton view is useful for benchmark comparison and for providing a single number to GCs who want a $/ton erection price.

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