Structural frames & platforms

Steel Frames, Mezzanines & Equipment Platforms for Commercial Facilities

Engineered structural frames, mezzanines, and equipment platforms designed for strength, stability, and safe access across warehouses, industrial plants, and commercial environments in Toronto & the GTA.

Weldrich and Steel Commercial Structural Steel Fabrication for GTA Builders & Contractors Projects

Engineered Steel Frames & Platforms Built for Commercial and Industrial Performance

Structural steel frames, mezzanines, and elevated platforms play a critical role in optimizing commercial and industrial spaces—supporting equipment, storage loads, production processes, and safe access for personnel. These systems must be engineered for predictable load distribution, long-term rigidity, and seamless integration with the building’s structural layout.

At Weld Rich & Steel, we design and fabricate steel frames, mezzanines, equipment platforms, and catwalk systems tailored to project-specific requirements and Ontario building standards. Our process includes engineering review, steel detailing, certified fabrication, and field installation to ensure accurate alignment, reliable load-bearing capacity, and safe circulation within high-activity environments. Built from structural-grade steel profiles and precision-welded assemblies, each frame or platform delivers the strength, stability, and operational efficiency modern facilities demand.

Structural mezzanines, frames & platform systems

What We Build

Steel frames, mezzanines, and elevated platforms must provide safe elevated access, reliable load-bearing performance, and seamless integration into commercial and industrial operations. Below are the engineered systems we fabricate to support storage, production workflows, and elevated work areas.

Structural Steel Mezzanines

Custom-engineered mezzanines designed to increase operational floor space in warehouses, industrial plants, and commercial facilities. Built as free-standing or structural systems, depending on load requirements and building layout, with integrated access components such as stairs, ladders, safety handrails, and gates.

Equipment Platforms & Machinery Support Decks

Heavy-duty platforms fabricated for HVAC units, processing equipment, compressors, mechanical assemblies, and production machinery. Engineered for concentrated loads, vibration control, and safe maintenance access.

Catwalks & Elevated Walkways

Narrow-span access systems used for inspections, maintenance, production oversight, and movement between elevated work areas. Fabricated with guardrails and safety features for CSA-compliant access.

Steel Frames for Multi-Level Structures

Structural framing systems for multi-level platforms, mezzanine extensions, and elevated storage decks. Designed for efficient assembly, predictable load transfer, and integration with existing steel frameworks.

Rack-Supported Platforms

Hybrid platforms supported by pallet racking or structural steel—ideal for high-bay warehouses and distribution centers. Maximizes vertical space without major building modifications.

Modular & Relocatable Platform Systems

Flexible platform assemblies engineered for facilities that require periodic reconfiguration. Ideal for manufacturing, packaging, and warehouse operations with evolving floor layouts.

Materials & Styles

Structural profiles, flooring systems & protective finishes

Steel frames, mezzanines, and elevated platforms must be fabricated using structural-grade steel profiles, engineered flooring systems, and protective finishes designed to withstand commercial and industrial loads.

Structural Steel Profiles
Material / Profile TypeCommercial UseKey Features
HSS Columns & Beams (Square, Rectangular)Primary support for mezzanines and platformsHigh strength-to-weight ratio, clean geometry, consistent load-bearing capacity
C-Channels & I-BeamsFraming for platform decks, catwalks, and support structuresEfficient for long spans and secondary framing; compatible with bolted/welded assemblies
Angle Iron & Bracing MembersLateral support and reinforcementUsed to stabilize elevated structures and resist seismic or vibration forces
Custom Welded FramesNon-standard layouts and multi-level systemsFabricated to project drawings for precise fit within existing facilities
Flooring & Grating Options
Flooring TypeIndoor UseIndustrial UseBenefits
Checker Plate Steel DeckingYesYesDurable, slip-resistant surface for mezzanines and machinery platforms
Open Steel GratingYesYesIdeal for ventilation, fire safety, and areas with liquids or dust; reduces load weight
Diamond Plate WalkwaysYesYesHigh traction for catwalks and elevated walkways
Composite or Wood Panels (On Steel Frame)YesLimitedLightweight, cost-effective option for non-industrial mezzanine applications
Protective Coatings & Finishes
FinishIndoorOutdoorBenefits
Standard Shop PrimerYesLimitedProvides corrosion resistance during fabrication and installation
Powder CoatingYesYesDurable, clean architectural finish suitable for high-visibility environments
Hot-Dip GalvanizingYesYesMaximum corrosion protection for industrial, warehousing, and moisture-prone areas
High-Performance Epoxy SystemsYesYesEnhanced resistance to chemicals and heavy-duty operational environments

Engineering & Compliance Notes

  • All steel components meet CSA G40.21 material requirements for structural steel in Canada.
  • Fabrication and welding are performed by CWB-certified welders.
  • Flooring and safety features are selected to support OBC and CSA safety standards for elevated work areas.
  • Systems can be designed as free-standing, structurally supported, or rack-supported, based on operational requirements.

Key considerations

Engineering, load requirements & safety compliance

Mezzanines, steel frames, and elevated platforms must be engineered to support operational loads, maintain safe circulation, and comply with commercial building and safety standards.

1. Structural Design & Load Capacity

Proper engineering determines how the platform handles uniform loads, concentrated equipment loads, vibration, and impact forces. Frame type (free-standing, structural-supported, or rack-supported) must match operational demands and the building’s structural conditions.

2. Building Code Compliance & Safety Standards

All mezzanines and elevated platforms must follow applicable Ontario Building Code and CSA safety requirements—including guardrail heights, fire safety clearances, egress routes, and floor loading ratings.

3. Integration With Existing Facility Layout

Platforms must be aligned with existing equipment, mechanical systems, workflow routes, and ceiling clearances. Proper planning ensures efficient access, safe movement of personnel, and minimal disruption during installation.

4. Access Points, Flooring & Safety Features

Circulation elements such as stairs, ladders, catwalks, safety gates, and non-slip flooring must be selected to support everyday operations. These components play a critical role in ensuring safe, code-compliant use of the elevated system.

Gallery

Recent steel frame & platform projects

Browse examples of completed mezzanines, equipment platforms, catwalks, and multi-level steel frames, fabricated and installed for commercial and industrial facilities across Toronto and the GTA.

Steel frames, mezzanines & platforms

FAQ

Do mezzanines or elevated platforms require a building permit in Ontario?

In many cases, yes. Projects that change floor area, load distribution, or egress routes typically require engineer-stamped drawings and a permit. We assist with engineering review and provide the documentation needed for approval.

Load ratings are engineered based on use—such as storage loads, machinery support, or personnel access. Typical commercial and industrial systems range from 60 psf to 250+ psf, depending on operational requirements.

Yes. We fabricate both fixed structural platforms and modular systems that can be expanded, reconfigured, or relocated to match evolving facility layouts.

We offer steel checker plate, open grating, diamond plate walkways, and composite decking. The right option depends on ventilation needs, slip resistance, equipment loads, and fire safety considerations.

Timeframes vary by project complexity. Standard mezzanines and platform structures typically require 1–3 weeks for fabrication, with installation scheduled to minimize disruption to ongoing operations.

For required access systems or code-compliant circulation to elevated work areas, explore our Industrial Stairs & Landings services. Browse all services on our Commercial Structural Steel Fabrication page.

Applications

Where steel frames & platform systems are used

Steel mezzanines, frames, and elevated platforms are widely used to expand operational space, support equipment, and improve workflow efficiency in commercial and industrial settings.

Common residential applications:

  • Warehouses and distribution centers requiring additional storage or work zones
  • Industrial plants and manufacturing facilities needing equipment platforms or
    multi-level access
  • High-ceiling commercial buildings where vertical space can be repurposed
    efficiently
  • Mechanical rooms and processing areas requiring elevated equipment decks
  • Production lines needing inspection catwalks or operator walkways
  • Facilities undergoing expansion, layout optimization, or workflow reconfiguration
  • Packaging, assembly, and fulfillment departments requiring multi-level work
    areas
  • Commercial interiors needing structural mezzanine additions or modular platforms

Regulatory Standards & References

Structural frames, platforms, and mezzanine systems are engineered to support operational loads, equipment, and safe circulation within commercial and industrial facilities, in accordance with applicable Ontario and Canadian regulations. All structural steel fabrication and installation align with the Ontario Building Code (OBC), Occupational Health and Safety Act (OHSA), and relevant CSA Group standards governing structural steel design, fabrication, and erection. Welding and fabrication are performed by CWB-certified welders, ensuring structural integrity, durability, and regulatory compliance for commercial projects.

Authoritative references:

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