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Product Highlights
- Heavy-duty spiral design – Stable, compact solution for deep excavation access.
- Fast setup – Modular assembly installs in hours and relocates by crane.
- Weather-ready – Anti-slip treads and enclosed rails for safe use in wet or muddy conditions.
SKU WO89991z-2
The HERMEQ Spiral Tower Staircase is a modular, heavy-duty access solution designed for groundworks, utilities, and shoring. Built for fast, safe entry into deep excavations, trenches, and confined work zones, it provides ANSI/EN 12811-compliant access and outperforms ladders or improvised systems.
Its crane-liftable, modular design ensures safe vertical movement for operatives, tools, and materials in tight or uneven terrain.
The HERMEQ Spiral Tower Staircase provides a compliant, reliable solution for vertical access in excavation and trenching works. Built from galvanized steel, it offers superior durability, stability, and ease of use compared to ladders or makeshift platforms.
Key Features:
- Modular construction – Stackable up to 8 modules, reaching heights of 60.5 ft.
- Compact spiral footprint – Fits easily into narrow or restricted excavation zones.
- Safe stair surface – Anti-slip treads and enclosed handrails provide confidence in wet or muddy conditions.
- Crane-lift ready – Entire unit can be repositioned without dismantling.
- Two-way traffic – Allows safe, efficient passage of operatives and tools.
- Compliance assured – Meets ANSI/EN 12811 standards for temporary works and groundworks access.
Unlike ladders, the Spiral Tower Staircase minimizes trip hazards and congestion, ensuring safe, efficient workflow in excavation projects. Its modular nature makes it suitable for phased trenching, pipe laying, shoring, and reinstatement works. By providing a permanent-feeling, reusable access point, it reduces risk and increases productivity across worksites.
Specifications:
| Modules | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Height (ft) | 8.1 | 15.6 | 23.1 | 30.6 | 38.1 | 45.6 | 53.1 | 60.5 |
| Width (in) | 63 | |||||||
| Weight (lbs) | 676 | 1177 | 1678 | 2176 | 2676 | 3176 | 3675 | 4176 |
Applications:
- Safe vertical access into trenches, cofferdams, and sheet piling works
- Groundworks and utility excavation projects
- Temporary stair access for shoring and reinstatement tasks
- Confined space entry where ladders are unsafe or impractical
- Integration with temporary trench bridges or stairways
HERMEQ supplies a wide range of equipment for Working at Height, including Edge Protection Systems, Fall Arrest Systems, and Harnesses & Lanyards, conforming to all required US safety specifications and regulations.
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Contact our team via email sales@hermeq-usa.com or use our live chat feature between 8:00am & 17:00pm for help discovering our range.
The HERMEQ Spiral Tower Staircase is widely used across utilities, civil engineering, and infrastructure projects. With a footprint of just 63 in, it delivers compact access in narrow or congested worksites. Its crane-liftable modular system ensures fast deployment, reducing downtime while maintaining full compliance. For contractors managing multi-zone trenching, shoring, or pipe-laying, it’s a reliable alternative to ladders and scaffold towers.
- Material: Galvanized Steel
- Modules: 1–8
- Max Height: 60.5 ft
- Width: 63 in
- Weight: 676–4176 lbs depending on configuration
- Compliance: ANSI/EN 12811
What is the maximum height the Spiral Tower Staircase can reach?
Up to 60.5 ft with 8 modules.
Can multiple workers use it at once?
Yes. Two operatives can safely use each flight simultaneously.
Is it reusable?
Yes. Built from galvanized steel, it withstands repeated site use and relocation.
Does it need a license to install?
No. Installation can be completed in just a few hours by site teams following the provided manual.
Does it meet US safety standards?
Yes. It complies with ANSI/EN 12811 requirements for temporary works access systems.
