Updated: 5th March 2026
In any commercial or public building, providing a safe and reliable evacuation route is a critical part of fire safety planning. When internal escape routes are limited or additional exit capacity is required, a fire escape staircase provides an essential secondary means of evacuation.
Fire escape staircases are designed to allow occupants to exit a building quickly and safely during an emergency. Installed either externally or internally, these staircases provide clear, accessible escape routes that support building safety strategies and help organisations meet their legal obligations.
At Heightsafe, we design, supply, and install fire escape staircases for buildings across the UK. Our systems are tailored to the requirements of each site, ensuring safe evacuation routes while maintaining compliance with UK fire safety regulations.
A fire escape staircase is a dedicated emergency exit stairway designed to allow people to evacuate a building safely in the event of a fire or other emergency.
These staircases are commonly installed on the exterior of buildings, providing a direct route from upper floors to ground level. In some cases, they may also be incorporated into the building structure as protected internal stairwells.
Fire escape stairs are designed to remain safe and accessible during emergency conditions and must meet specific requirements relating to structural integrity, accessibility, and fire safety.
Protecting Building Occupants
The primary purpose of a fire escape staircase is to provide a safe evacuation route during an emergency. In situations where smoke, fire, or blocked exits prevent access to internal escape routes, an external staircase can provide a critical alternative path to safety.
Clear and reliable escape routes help reduce panic during evacuations and allow occupants to leave the building quickly.
Compliance with Fire Safety Regulations
UK legislation requires building owners and duty holders to ensure safe evacuation routes are available.
Relevant regulations include:
Installing a compliant fire escape staircase helps organisations meet these legal responsibilities while improving overall building safety.
Supporting Emergency Response
Well-designed escape staircases also help emergency services access buildings more effectively. By providing clear routes and external access points, fire and rescue teams can operate more safely during an incident.
Different building layouts and safety requirements call for different types of fire escape stairs.
External Fire Escape Staircases
External staircases are the most common type of fire escape. Installed on the outside of the building, they allow occupants to exit directly from upper floors to ground level.
These staircases are often constructed from galvanised steel and designed to withstand harsh weather conditions while remaining structurally sound.
Internal Fire Escape Staircases
Internal fire escape stairs are enclosed within fire-resistant structures designed to protect occupants from smoke and flames during evacuation.
These stairwells are typically part of the building’s main fire safety design and are often pressurised or ventilated to prevent smoke ingress.
Spiral and Helical Fire Escape Stairs
In buildings with limited space, spiral or helical staircases may be used as emergency exits where permitted by design regulations. These stairs provide a compact evacuation route while still meeting relevant safety standards.
Installing a well-designed fire escape staircase provides several important benefits:
A properly designed fire escape staircase includes several important safety features.
Durable Construction Materials
Fire escape stairs are typically manufactured from strong materials such as galvanised steel or aluminium, providing durability and resistance to corrosion.
Anti-Slip Stair Treads
Slip-resistant treads help maintain safe footing during evacuation, even in wet or icy conditions.
Safety Handrails and Guardrails
Handrails and guardrails help guide occupants during evacuation and prevent accidental falls from the staircase.
Weather Protection and Finishes
External staircases may include protective coatings or galvanised finishes to ensure long-term performance in outdoor environments.
Safety Gates and Access Points
Where required, access gates or controlled entry points may be incorporated to ensure the staircase is used appropriately while remaining accessible during emergencies.
Heightsafe specialises in safe access and work at height systems across the UK. Our experienced team supports clients throughout every stage of a fire escape staircase project.
Our services include:
We work with organisations across commercial, industrial, and public sector environments to create safe and compliant access solutions.
If your building requires safe and compliant emergency exit routes, a professionally designed fire escape staircase can help protect occupants and meet fire safety requirements.
Contact Heightsafe today to arrange a site survey or discuss a tailored fire escape staircase solution for your building.
Fire Safety Legislation
Fire escape staircases must comply with the Regulatory Reform (Fire Safety) Order 2005, which places responsibility on building owners and duty holders to ensure adequate fire safety measures are in place.
Building Regulations and Approved Document B
Approved Document B provides guidance on fire safety within buildings, including escape routes, stair design, and evacuation planning.
Key considerations include:
Design Considerations
When designing fire escape staircases, factors such as building height, occupancy levels, and expected evacuation loads must be considered to ensure safe and efficient evacuation.
Site Survey and Risk Assessment
Every fire escape staircase project begins with a detailed assessment of the building and its fire safety requirements. This includes evaluating occupancy levels, escape routes, and structural considerations.
Bespoke Staircase Design
Because every building is different, fire escape staircases are typically designed to suit the specific layout and operational needs of the property.
Custom designs ensure the staircase integrates safely with the building structure and existing evacuation routes.
Integration with Other Safety Systems
Fire escape staircases often work alongside other fire safety measures, including:
Together, these elements create a comprehensive emergency evacuation strategy.
Professional Design and Fabrication
Heightsafe works with experienced fabricators to produce staircases that meet structural requirements and fire safety standards.
Structural Safety and Load Capacity
Fire escape staircases must be capable of supporting large numbers of occupants during an evacuation. Structural calculations ensure the staircase can safely withstand these loads.
Compliance and Certification
All installations are completed in accordance with relevant building regulations and safety standards, ensuring the staircase performs as intended during emergencies.
Like all safety infrastructure, fire escape staircases should be inspected regularly to ensure they remain safe and operational.
Routine inspections help identify:
Regular maintenance helps ensure the staircase remains reliable in the event of an emergency.
A fire escape staircase is an emergency exit route designed to allow occupants to evacuate a building safely during a fire or other emergency.
They are required when additional escape routes are necessary to meet fire safety regulations or when internal escape routes are insufficient.
Yes, external staircases are commonly used as emergency escape routes, provided they meet building regulations and fire safety requirements.
The required width depends on the number of occupants and the building’s evacuation strategy, as outlined in building regulations.
Yes. Regular inspections ensure the staircase remains structurally sound and free from obstructions.
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