Perforated Metal Staircases for All Industries
Designed to integrate with wider structural systems, metal staircases can be tailored to suit internal or external installations. As an experienced firm, Graepels supplies metal staircases for a broad range of non-consumer applications, including steel stairs for mezzanine installations that create additional office or storage space within industrial units. Depending on the environment, the use of metal stairs outdoor configurations may be specified to meet site conditions.
Today, metal staircases are widely specified in industrial and commercial environments where safe, durable and space-efficient access between levels is required. Commonly used within factories, warehouses and commercial buildings, metal staircases provide reliable vertical circulation in settings where performance and compliance are critical.
Uses and Applications of Metal Staircases
Metal staircases are typically installed where strength, stability and long-term reliability are essential. They are commonly used across industrial and commercial settings, including:
- Access between floors within factories and warehouses
- Mezzanine installations in industrial units to increase usable space
- External fire escapes and emergency egress routes
- Plant rooms, service platforms and maintenance access
- Commercial buildings requiring durable internal stair access
This versatility allows metal staircases to be incorporated into both permanent structures and adaptable building layouts.
Perforated Stairs
Safedeck Steps & Stairs with Anti-Slip Edge
Industrial folding Steps
Retrofitting Steps & Added Grip
Graepels manufacture perforated strips for an anti-slip edge. These can be added to the stair nosing as a cover or edge on the existing step.
For Public and Industrial sectors Graepels offer a variety of different perforations specific to their application. The front edges are smooth, and the folds are welded with lateral fixing holes.
All Steps are designed for 5kN/m2 uniformly distributed load and 1.5 kN over 200 x 200 mm concentrated load. Steps or stair treads with higher load capacities are available on request.
Please note Graepels can manufacture custom stair threads and goings on request as well as accompanying balustrade infill.
Perforated Edging Strip
Perforated Nosing (Added to Step)
Upturned Step Edge
Colour Grip
Metal Stairs Outdoor and Indoor Options
Both inside and out, metal staircases can be manufactured using a range of materials, with steel stairs often selected for their strength and load-bearing capability. Material choice is influenced by whether the staircase is intended for indoor or outdoor use, along with factors such as environmental exposure and frequency of use.
Manufacturing processes are selected to achieve consistent geometry and reliable performance. Staircases can be produced to suit specific floor heights, layouts and access requirements, with options available for integrating platforms, landings and safety features. Where required, components such as metal ladder rungs or perforated flooring systems can be incorporated into the design.
Metal Staircases Project Support and Supply
Metal staircases can be supplied for individual installations or as part of larger access and mezzanine systems. Support is available throughout the specification process:
- We advise on suitable staircase layouts and material options.
- We manufacture stair components to suit defined dimensions and site conditions.
- We supply staircases designed to integrate with mezzanines and access platforms.
- We can incorporate perforated flooring systems such as Safedeck where appropriate.
This approach allows metal staircases to be supplied in line with technical requirements and intended use.
Performance and Design Considerations
When specifying metal staircases, safety and usability are key considerations. Stair geometry, tread design and underfoot grip must support safe movement in both everyday use and emergency situations. For external installations, steel stairs outdoor options must perform just as reliably in exposed conditions as metal stairs indoor designs do.
Design flexibility allows metal staircases to integrate with surrounding structures, including mezzanine floors, handrails and access platforms. This ensures compatibility across the wider installation while maintaining structural integrity.
STANDARD TYPE 70 [CAN REPLACE GRID STEPS]
Standard Dimensions. *Other dimensions available upon request.
| D* (MM) | H1/H2* (MM) | B* (MM) | L* (MM) | N* (MM) |
| 2.0/2.5 | 40/70 | 240 | 600-1,000 | 120 |
| 2.0/2.5 | 40/70 | 270 | 600-1,000 | 150 |
| 2.0/2.5 | 40/70 | 300 | 600-1,000 | 180 |
STANDARD TYPE FLAT [PARTICULARLY COMPACT & LIGHTER WEIGHT]
Standard Dimensions. *Other dimensions available upon request.
| D* (MM) | H1/H2* (MM) | B* (MM) | L* (MM) | N* (MM) |
| 2.0/2.5 | 50 | 240 | 600-1,000 | 127 |
| 2.0/2.5 | 50 | 270 | 600-1,000 | 157 |
| 2.0/2.5 | 50 | 300 | 600-1,000 | 187 |
Metal Type: DD11 Raw, DD11 Hot Dip Glavanised, DX 51 D Pre-Galvanised, Stainless Steel, EN AW-5754
Platform Construction: to access platforms and raised floors in industrial facilities, allowing for safe access to equipment and machinery.
Drainage Covers: for covers for drainage systems, allowing water to flow through while preventing debris and objects from entering. And for walking on for bunkers and pits with cohesive loose goods such as grains or ground particles.
Catwalks and Mezzanines: utilized to create catwalks and mezzanine structures for accessing elevated areas in warehouses, factories, and commercial buildings.
HVAC Grilles: Gratings are used as grilles and screens for ventilation systems in buildings and industrial facilities.
Overall, metal gratings offer strength, durability, and versatility, making them essential components in various industries for safety, access, drainage, ventilation, and structural support purposes
Safety and Durability: Perforated metal staircases and treads offer excellent traction, reducing the risk of accidents caused by slippery surfaces. They are also durable and resistant to wear and corrosion, ensuring long-term performance even in harsh environments.
Ventilation and Light Transmission: The perforations in metal staircases and treads promote airflow and ventilation, preventing the buildup of moisture and odors in enclosed spaces. Additionally, they allow natural light to pass through, brightening up stairwells and adjacent areas.
Customisation Options: Perforated metal staircases and treads can be customised in terms of hole size, spacing, and pattern to meet specific design and functional requirements. This customisation allows for flexibility in design while ensuring the stair components are tailored to the project’s needs.
Universal Step
Graepels non slip stair treads suitable for outdoor stairs or for areas where a high slip resistance is required.
Universal steps and stair treads offer excellent anti-slip and drainage. These steps use two perforation types; countersunk (pressed perforations -downturned) and upturned perforations providing added grip for the user.
Garden Step
The pattern and perforation type of the ‘garden’ safedeck pattern offers high drainage and an anti slip surface for safety and security.
The term “Graepel Garden” refers to its possible applications within the private and public sectors. ‘Garden’ can also be applied in the industrial sector. It is suitable for barefoot use. Upturned and down-turned perforations offer a degree of anti skid and drainage.
Pearl Step
Graepels Pearl step is ideal for indoor use, the perforation type is suitable for underfoot.
Pearl steps and stair treads are comfortable underfoot. There are no ‘open perforations’ on the pearl pattern hence there is no drainage. Pearl steps are available hot dip galvanized.
Stabil Step
Graepels Stabil non slip stair tread is an ideal solution for areas where a high slip resistance is required. The serrated edging offers high grip.
The prominent characteristic of Stabil are the upward perforations, which are 45mm long, and raised with serrated edges. With one of the highest slip resistances within the Safedeck range, enormous drainage and transverse stiffness, Stabil is your choice for outdoor applications including onshore and offshore sectors.