Prefabricated Structural Assembly
Repeatable, Factory-Built Structural Systems for Critical Facilities
Whitmore Steel provides prefabricated structural steel platforms, support assemblies, and equipment support structures for mission critical, data center, healthcare, and industrial programs. Our approach moves coordination-heavy structural scopes from the field into the fabrication shop — where dimensional accuracy, quality control, and schedule certainty are easier to manage. The result is structural steel that arrives installation-ready and reduces field risk for downstream trades.
What We Build
Whitmore Steel provides structural steel scopes tailored for prefabricated and factory-built construction
- Load-bearing structural frames for prefabricated assemblies
- Interstitial platforms and service-level steel
- Equipment and mechanical support structures
- Transport and lift ready steel assemblies
- Bolt-up, installation-sequenced steel systems
All assemblies are detailed with dimensional accuracy, transport considerations, and installation sequencing in mind
Structural Steel First
Self-Performed Structural Steel. Fabrication-Led Prefabricated Execution.
Whitmore Steel’s prefabrication approach is built on self-performed structural steel fabrication—driving dimensional control, quality consistency, and predictable installation across the modular process.
This approach enables:
- Earlier fabrication and controlled release sequencing
- Predictable connection geometry
- Cleaner coordination with MEP systems
- Tolerance control verified under Whitmore's AISC-certified quality program
- Reduced risk during installation on constrained or operating sites
How We Deliver
Whitmore Steel operates under a delegated-design prefabricated delivery model:
Structural steel fabricated and assembled by Whitmore Steel
Structural Engineer of Record engaged through established third-party partners
Factory Acceptance Testing (FAT) performed prior to shipment
No field modifications without Whitmore Steel approval
Ideal Applications
Whitmore Steel prefabricated assemblies are best suited for:
- Mission critical and data center environments
- Healthcare facilities and hospital expansions
- Industrial and utility infrastructure
- Education and institutional buildings
- Projects where schedule certainty and site constraints are critical
* Fabrication nationwide | Erection executed regionally through project-specific staffing aligned with GC delivery plans
FAQ
How does Whitmore Steel deliver prefabricated projects?
Whitmore Steel fabricates structural steel assemblies and platforms in our AISC-certified facility and delivers them as installation-ready systems. Assemblies are coordinated with project teams, verified prior to shipment, and erected on-site to integrate with the permanent structure. These services are a direct extension of Whitmore Steel’s long-standing structural steel fabrication and erection experience, applied to applications requiring tighter coordination and controlled execution.
What prefabricated applications does Whitmore Steel specialize in?
Whitmore Steel specializes in prefabricated structural steel assemblies for mission critical and data center programs, hospitals, education facilities, and industrial infrastructure — where schedule certainty and minimized site disruption are critical.
How is seismic compliance addressed in prefabricated projects?
Structural systems are detailed in accordance with AISC standards and applicable seismic codes, with the Structural Engineer of Record engaged through the owner or project team to meet CBC and IBC requirements.
What schedule and cost benefits can project teams expect?
Off-site fabrication enables earlier release of structural scope, reduced site congestion, and more predictable installation—often accelerating schedules compared to conventional stick-built steel.
Can prefabricated steel assemblies integrate with existing or traditional construction?
Yes. Whitmore Steel coordinates connection geometry, tolerances, and sequencing to support hybrid projects involving existing structures or conventionally built systems.
Does Whitmore offer design-build services for prefabricated projects?
Yes—Whitmore Steel operates under a delegated design or design-assist model, collaborating with Architects and Engineers of Record engaged by the owner or GC.
Where does Whitmore Steel perform this work?
Whitmore Steel fabricates structural steel assemblies in AISC-certified facilities and executes erection through regionally aligned project teams, coordinated with GC delivery plans and project requirements