Choosing the Right Steel Stair System for Your Facility
When facility managers and project engineers plan industrial access installations, the first major decision comes down to construction method: bolt-together or welded steel stairs. Both approaches deliver safe, code-compliant access. The difference lies in how quickly you can install, how much you will spend, and how easily you can adapt the system later.
This guide breaks down the strengths and weaknesses of each method. You will learn where bolt-together systems save time and money, where welded construction offers advantages, and how to decide which approach fits your next project.
What Are Bolt-Together Steel Stairs?
Mechano Max Bolt-together steel stairs use pre-engineered components that ship ready to install. Stairs are completely built in the Mechano Max facility and are disassembled minimally for cost effective palletized shipping . Each modular stairs kit arrives pre-cut, pre-galvanized and partially assembled . Installation crews fasten components on site using standard hand tools. No welding, no cutting, no grinding and no painting are required.
At Mechano Max, our stair systems use the Hilti MT framing system, which carries ICC-ES approval (ESR-5019) under AISI S100-16 and CSA S136-16 standards. Every design meets the National Building Code of Canada 2020 (NBC2020). Engineer stamped drawings can be provided if required so your team can verify compliance before the first bolt turns.
The “Bolt and Go” approach means installation happens in hours rather than days. A typical industrial stair run that might take a welding crew three to five days can be assembled in a few hours with bolt-together components.
What Are Welded Steel Stairs?
Welded steel stairs are fabricated by fusing raw steel members together. This happens either in a shop (prefabricated welded) or entirely on site. The process requires certified welders, welding equipment, protective gear and heavy lifting equipment if the stairs are prefabricated off site . After welding, joints often need grinding, priming and coating or painting to resist corrosion.
Welded construction creates permanent joints. Once a weld cools, that connection is not coming apart without cutting. For architecturally exposed stairs in commercial buildings, this permanence delivers a clean, seamless look that some designers prefer.
However, the trade-offs are significant. Welded installations require hot work permits, fire watch protocols, and ongoing inspections during construction. Certified welders in Canada charge between $60 and $125 per hour, and a full stair installation can run 6 to 10 hours of welding labor alone (Source: Industry labor surveys, 2024-2025).
Structural Integrity and Load Capacity
Both bolt-together and welded stairs must meet the same building code requirements. Industrial stairs must meet uniform live load and concentrated load requirements as per the National Building Code of Canada 2020 (NBC2020). The top rail of any handrail system must withstand a load of 200 lbs (890 N) applied in any direction, and a concentrated load of 225 lbs (1.0 kN) at any point along its length. Mid-rail and toe kick requirements are specified at lower load ratings than the top rail, consistent with NBC2020 requirements
Bolt-together systems like those from Mechano Max use structural-grade galvanized steel channels with engineered bolt patterns. The Hilti MT system achieves its rated capacity through precision-drilled holes and high-strength bolted connectors . Quality control happens at the factory, not on site, which means every connection point is verified before it leaves the shop.
Welded joints create a continuous metal connection . Both methods meet or exceed code requirements for standard industrial applications. The key difference is that bolt-together systems achieve this without the variability of on-site welding quality.
According to the American Institute of Steel Construction (AISC) specifications, bolted connections using properly specified connectors and fasteners provide predictable, repeatable strength. Each bolt can be torque-checked and verified. Welded joints require individual weld testing, which adds time and cost to quality assurance.
Installation Speed and Downtime
Installation time is where bolt-together stairs deliver their biggest advantage. Industry data shows bolt-together assembly can be up to 40 percent faster than welded construction (Source: Modular Building Institute, 2024). For facility managers, faster installation means less production downtime and lower labor costs.
Consider a typical scenario. A manufacturing plant needs a new stair access to equipment . With welded construction, the process looks like this:
- Schedule a certified welding crew. Lead times can be long : Quality welders are always in demand
- Obtain hot work permits and arrange fire watch
- Clear the work area of combustible materials
- Weld, grind, and inspect each joint (three to five days on site)
- Apply corrosion protection (priming, painting or galvanizing)
- Final inspection before use
With bolt-together modular stairs from Mechano Max, the same project follows a much shorter path:
- Review and approve design drawings from Mechano Max. Drawings can be engineer stamped if required
- Mechano Max completely builds your modular stairs in their shop. They partially disassemble the stairs for cost effective ,palletized shipping anywhere in Canada
- Receive your partially assembled modular stair kit on site. Detailed assembly instructions are included
- Anyone can assemble with basic hand tools in a few hours. No special training, welding , cutting or grinding. Adjustable , bolted connections make it easy to level your stairs
- One-time quality check with a torque wrench
- Immediate use
No hot work permits. No fire watch. No certified welders on the payroll. Your own maintenance crew can handle the installation, which eliminates contractor cost and scheduling delays entirely.
Cost Comparison
When you compare total installed cost, Mechano Max bolt-together stairs win every time over welding . You should consider the full project spend, including labor, permits, downtime, fabrication and installation costs. If changes are required down the road , all modular components can be reused . Welded stairs are often scrapped
Labour Costs
Labour is where the gap widens. Mechano Max Bolt-together stairs can be assembled by anyone with basic hand tools. No welding, cutting , grinding or painting . Simple One time quality control with a torque wrench. Adjustable components make site levelling fast & easy.
Welded construction demands certified welders at $60 to $125 per hour. If welded stairs are pre-fabricated off site, heavy lifting equipment is required to transport and install the stairs For welded construction, labor costs are higher when you factor in welder rates, permit costs, and inspection time.
Permitting and Compliance Costs
Welded installations require hot work permits, fire safety plans, and ongoing welding inspections. These add both direct fees and administrative overhead. Mechano Max Bolt-together systems arrive partially assembled with detailed assembly instructions and one-time quality control verification. No welding permits or inspections are needed during installation.
Total Project Cost
When you add up materials, labor, permits, downtime, and inspection costs, bolt-together stairs typically deliver 20 to 30 percent lower total project costs compared to welded alternatives for standard industrial applications (Source: Modular Building Institute, 2024). The savings grow with project complexity because the labor and permitting differences compound.
Corrosion Protection and Durability
Industrial environments are tough on steel. Moisture, chemicals, and temperature swings accelerate corrosion. How you protect the steel matters as much as the steel itself.
Bolt-together systems from Mechano Max use galvanized steel components, suitable for Indoor or Outdoor applications . Galvanizing applies a zinc coating that metallurgically bonds to the steel, providing decades of corrosion protection without ongoing maintenance. The galvanizing happens at the factory, where process conditions are tightly controlled for consistent coating thickness.
Welded stairs present a corrosion challenge at every joint. The intense heat of welding destroys any factory-applied coating within the heat-affected zone. After welding, each joint must be cleaned, primed, and re-coated on site. This field-applied protection is never as consistent or durable as factory galvanizing. Over time, welded joints are often the first points where corrosion appears.
For outdoor installations or facilities with corrosive environments, bolt-together galvanized components deliver significantly longer service life with lower maintenance requirements. Mechano Max systems are built for both indoor and outdoor use across Canada, from coastal facilities to northern oil and gas sites.
Maintenance and Repairs
Some industrial stairs may eventually need maintenance or repairs if they are damaged by a forklift or other equipment . The question is how much time and money that maintenance will cost.
With Mechano Max bolt-together systems, repairs are straightforward. If a tread, handrail, or stringer section gets damaged, your team can unbolt the affected component and replace it with a new one. No cutting, no welding, and no repainting. Spare components can be kept on site for fast turnaround. The modular design means you can also reconfigure the stair layout if your facility layout changes.
Welded repairs are far more involved. Repairing a damaged welded stair section requires cutting out the damaged area, preparing the surfaces, welding in a replacement piece, grinding the joint smooth, and reapplying corrosion protection. This process takes significantly longer and requires a certified welder. For facilities trying to minimize downtime, welded repairs can be a costly disruption.
Reconfigurability and Relocation
Industrial facilities change. Production lines move, equipment gets relocated, and floor plans get reorganized. Your access infrastructure needs to keep up.
Bolt-together stairs are inherently modular. You can disassemble a stair system, relocate it, and reassemble it in a new configuration. Components can be reused across multiple installations over their service life. This adaptability protects your capital investment and reduces waste when your facility evolves.
Welded stairs are permanent. Once installed, relocating a welded stair system means cutting it apart, which destroys the original welds and often damages the surrounding steel. You are essentially scrapping the old system and building a new one. Your original investment is lost.
For facilities that anticipate layout changes or that use semi-permanent and temporary access needs, bolt-together construction is the clear choice. Mechano Max systems are designed from the ground up for adjustability and relocation.
When to Choose Bolt-Together Steel Stairs
Bolt-together construction is the right choice for most industrial and commercial applications. Consider bolt-together stairs when:
- You need fast installation to minimize facility downtime
- Your maintenance team or maintenance contractor will handle installation (no welding certifications required)
- Corrosion resistance is critical (outdoor, chemical, or coastal environments)
- You may need to relocate or reconfigure the stairs in the future
- You want to avoid hot work permits and welding inspections
- You need engineer-stamped, code-compliant documentation
- Long-term maintenance costs are a priority
For a closer look at how modular bolt-together platforms work in practice, see our guide on bolt-together platforms: benefits and applications. For details on stair and walkway systems specifically, visit our stairs, walkways and crossovers service page.
The Bottom Line for Facility Managers
For industrial and commercial applications across Canada, bolt-together steel stairs deliver measurable advantages over welded construction. Lower total project costs. Faster installation that keeps your facility running. Factory galvanized components that resist corrosion for decades. Modular designs that adapt when your needs change. And the ability to assemble everything with your own labour forces using basic hand tools.
Welded stairs still serve a purpose for architectural or highly specialized installations. But for the vast majority of industrial access needs, bolt-together systems deliver better value, faster results, and lower long-term ownership costs.
For more on prefabricated stair systems and their advantages in Canadian industrial settings, read our guide on prefab metal stairs: manufacturing and installation advantages. To learn how Mechano Max approaches rapid deployment of modular access systems, explore our express assembly solution.
Ready to specify bolt-together steel stairs for your next project? Call +1 403 397 7926 for custom-engineered modular access solutions from Mechano Max, or request your free quote online.
