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Denver structural steel contractor

Fabricated steel for Colorado jobsites.

Send drawings, specs, addenda, location, and bid date. FSW reviews fabrication, erection, miscellaneous metals, and field welding with one accountable shop-and-field path — supported by AI-assisted intake that organizes the package before experienced people make the call.

  • 01AISC Certified Building Fabricator
  • 0230–50 tons/week shop throughput
  • 03Ironworkers Local 24
  • 04AI-assisted intake, human-led decisions
Structural beam assembly being fabricated inside the Flawless Steel Welding shop in Denver.
AISC shop / Denver CO
30–50t

Weekly shop throughput supported by CNC equipment, in-house estimating, and detailing.

Bid intake

Send the documents that change steel scope.
01 / In the weldLive from the shop floor

Certified welders and fitters turning raw members into erect-ready steel.

02 / AutomationRobotic beam welding

A production cell lays consistent, repeatable welds on real project steel.

03 / FormingCNC forming and plate work

Shop equipment and in-house planning keep fabrication connected.

AI-assisted intake / human-led steel

AI organizes the paperwork. People make the calls.

FSW uses AI-assisted internal workflows to organize bid intake, scope questions, and project communication — while estimating, commitments, coordination, safety, and field execution stay with FSW people.

  • 01

    Intake

    Bid files organized for reviewDrawings, specs, addenda, location, dates, and notes get structured before the estimating conversation starts.
  • 02

    Scope

    Open questions get surfacedAI-assisted internal workflows help collect scope gaps, RFI candidates, alternates, exclusions, and coordination notes.
  • 03

    Decision

    FSW people make the callEstimating, commitments, shop planning, safety, and field execution stay human-led.

Technology

The steel fabricator that builds its own software.

FSW built its own construction-management platform, runs a robotic beam-welding cell, and puts AI to work across the shop — while most of the industry still runs on spreadsheets and paper. It is how we make commercial steel more predictable: real-time status, consistent welds, and quality you can actually see.

Our own software

Flawless Hub tracks every piece from detailing to field erection, with quality recorded down to the weld.

Robotic welding

A production cell lays consistent, repeatable welds while certified welders handle the complex work.

AI-assisted, human-led

AI helps with estimating, change orders, and quality-document search — people stay in charge of every call.

2011Building in Denver since
30–50tWeekly shop throughput
8,500+Quality documents, AI-searchable
AISCCertified Building Fabricator

Public proof

Credentials a GC can actually verify.

AISC-certified fabrication, Ironworkers Local 24 affiliation, minority-owned business status, and public recognition — each one linked to a source a project team can check directly.

Download the AISC certificate (PDF)
04Ocean Machinery Customer Spotlight

Customer spotlight describing FSW’s shop equipment, growth, AISC status, and minority-owned business status.

05Denver Business Journal 2019 Small Business Awards

Denver Business Journal coverage of FSW’s 2019 Small Business Awards recognition.

Structural steel, stairs, rails, embeds, supports, and field welding.

A steel bid should read like a scope conversation, not a brochure. These are the scopes FSW wants to see clearly called out in the drawings, specs, addenda, and exclusions.

01

Shop-built precision

Structural Steel Fabrication

AISC-certified fabrication for beams, columns, embeds, frames, supports, and project-specific assemblies prepared for commercial construction schedules.

  • Material coordination
  • Fit-up and welding
  • Finish and delivery planning
02

Field execution

Steel Erection & Installation

Crew-led installation for structural steel, miscellaneous metals, and coordination-heavy field conditions with Ironworkers Local 24 affiliation.

  • Site coordination
  • Lift sequencing
  • Field welding and bolting
03

The details that finish the job

Miscellaneous Metals

Commercial metal packages including stairs, rails, ladders, bollards, frames, and specialty steel scope.

  • Stairs and rails
  • Bollards and embeds
  • Custom supports
Learn more
04

Mobile capability

Welding & Field Support

Responsive welding support for repairs, modifications, project closeout, and planned field work.

  • Field repairs
  • Project modifications
  • Punch-list support

Data Centers & Overflow

Steel for the data center boom — direct or overflow.

FSW fabricates structural and miscellaneous steel for data centers — equipment platforms, mezzanines, supports, containment, and cable-tray steel — with robotic welding and weld-level traceability. We work directly with general contractors and provide overflow capacity for larger shops, regionally and nationally.

High-mix, high-volume

Platforms, supports, containment, and cable-tray steel — the schedule-critical scope data centers run on.

Proven where it counts

Robotic welding for consistency, Flawless Hub for traceability, AISC certification behind it.

Direct or overflow

Work with FSW as your fabricator, or as overflow capacity when your own shop is at the line.

Resource center

Bid-package answers before the RFI.

Practical pages for estimators, PMs, supers, and owners who need steel scope explained in plain contractor language before they send a plan link.

Project fit

Commercial steel for Denver and the Front Range.

From early bid review to field punch support, FSW works with project teams that need a steel contractor who understands construction pace, coordination pressure, and the cost of missed details.

1

Send drawings

Share plans, specs, addenda, scope notes, alternates, and the bid due date.

2

Scope review

FSW reviews steel scope, coordination risks, field conditions, and proposal requirements.

3

Build the number

The estimate is organized around constructability, schedule, exclusions, and clean communication.

4

Execute the work

Fabrication, delivery, and field work are coordinated around the project team’s priorities.

Common scopes

The work we want to see in the plan room.

Send the complete drawing set and note what is in or out of scope. FSW will review the package and follow up with bid questions or next steps.

Commercial buildings

Office, retail, and mixed-use structures — main-member framing, moment connections, and the embeds and miscellaneous steel that close out the shell.

Industrial facilities

Equipment platforms, mezzanines, and heavy supports where uptime, access, and lift sequencing drive the schedule.

Institutional and public-sector work

Schools, municipal, and agency projects with documentation, inspection, and coordination requirements built into the bid from day one.

Tenant improvements and additions

Infill beams, shaft steel, and reinforcement of existing structure — field-verified dimensions and careful coordination around occupied space.

Stairs, rails, ladders, and access steel

Code-driven egress and access packages where fit-up, finish, and inspection all show in the final walkthrough.

Canopies, supports, frames, and embeds

The scattered steel that carries other trades' work — anchor layouts, cast-in embeds, and frames coordinated against concrete and MEP.

Send plans

Have a bid date? Get FSW the drawings now.

Email the plan link, specs, addenda, scope notes, location, and deadline. The cleaner the package, the faster FSW can review it.