Bolt together metal stairs: steel bolted access stair systems
Pre-engineered standard stairs with an easy-to-assemble erection bolt design.
Benefits of bolted access stairs
✔ Same business day pricing and drawings
✔ Simple assembly on-site, even in compact spaces
✔ Cost-effective solution for retrofits and renovations
✔ Knock-down design ships flat
✔ No welding or expensive equipment required for installation
Code compliance
✔ OSHA-compliant stairs |
✔ IBC-compliant stairs |
Stairs for structural steel construction and large-scale projects
Our commercial steel stairs are a complete outsource solution for steel welded egress stair systems that includes estimating, design, detailing, and dedicated project management.
Additional products
Create a custom access solution with platforms and supports designed to easily integrate with our bolted access stairs.
Platforms
Legs
Cross bracing
OSHA-compliant bolted access stairs
Applications
✔ OSHA-compliant access
✔ Industrial egress
✔ Industrial equipment access
✔ Crossover systems
✔ Industrial secondary access
✔ Mezzanine access
✔ Dock stair
✔ Catwalk access
Specifications and options for OSHA-compliant bolted access stairs
| DIMENSIONS | MINIMUM | MAXIMUM |
| Stair height | 18" | 240" |
| Stair angle (stair heights up 123") | 25° | 50° |
| Stair angle (stair heights 124" and up) | 29° | 50° |
| Riser height | 4" | 10" |
| Rail height | 30" | 43" |
| Baluster spacing (spherical clearance) | 3¾" | 36" |
| Tread width (inside stair width) | 24" | 48" |
NOTE: Minimum/maximum dimensions may vary based on stair use and applicable code. |
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Handrails/guardrail specifications
✔ Constructed of 1½" OD tube capable of withstanding 200# load
✔ Adjustable baluster spacing (within specified code)
✔ Press punched baluster ends
✔ Low-density polyethylene molded end caps
✔ Optional steel end caps are available
Stringer specifications
✔ Constructed of 10" or 12" steel channel (based on stair dimensions)
✔ Balusters bolt into stringers using included hardware
Finish options
✔ Standard powder coat colors
✔ Custom powder coat colors
✔ Hot-dip galvanized
Tread options
✔ Carbon steel construction
✔ Available in standard widths of 24", 30", 36", and 48"
✔ Also available in custom widths
✔ Optional back pans are available
Diamond plate
Solid tread surface with raised diamond pattern to provide traction
Concrete pan
Arrives ready for site-poured concrete; diamond plate nosing
Bar grate
Skid-resistant, serrated grating surface; diamond plate nosing
Grip tread
Aggressive non-skid, serrated grating surface; diamond plate nosing
IBC-compliant bolted access stairs
Applications
✔ IBC-compliant access stairs
✔ ADA-compliant access stairs
✔ Egress stairs
Specifications and options for IBC-compliant bolted access stairs
| DIMENSIONS | MINIMUM | MAXIMUM |
| Stair height | 18" | 144" |
| Stair angle | Variable | Variable |
| Riser height | 5" | 7" |
| Tread depth | 10" | 11½" |
| Top landing depth | 4" | 4" |
| Top reveal | 1" | 36" |
| Front reveal | ¼" | 1½" |
| Guardrail height | 42" | 42" |
| Handrail height | 30" | 38" |
| Baluster spacing | 3¾' | 21" |
| Tread width | 36" | 60" |
NOTE: Minimum/maximum dimensions and angle restrictions ranges will vary based on stair width and tread type. Contact us for more information. |
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Tread options
✔ Carbon steel construction
✔ Available in standard widths of 24", 30", 36", and 48"
✔ Custom width are also available
Diamond plate
Solid tread surface with raised diamond pattern to provide traction
Concrete pan
Arrives ready for site-poured concrete; diamond plate nosing
Smooth plate
Solid, smooth surface designed for the installation of carpet or other flooring
Value-engineered options
Tread enhancements with non-slip and sound-dampening properties
Handrails/guardrail specifications
✔ Designed to meet specified code and field conditions of each project
✔ Default includes guardrail with handrail on both sides
✔ Option to omit one guardrail and mount handrail to a wall
✔ Standard full baluster infill
✔ Optional panel infill
Full baluster infill
Optional panel infill
Stringer specifications
✔ Constructed of 10" or 12" steel channel (based on stair dimensions)
✔ Balusters/rail supports bolt into stringers using included hardware
Finish options
✔ Standard powder coat colors
✔ Custom powder coat colors
✔ Hot-dip galvanized
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