Warehouse Emergency Lighting Design Guide
Emergency lighting in a warehouse needs to do much more than simply provide a few illuminated exit signs. A properly designed system should help employees, contractors and visitors move safely through the building if the normal lighting supply fails.
Warehouses can make emergency lighting design particularly challenging. High ceilings, tall pallet racking, large open areas, mezzanine floors, loading bays and frequently changing layouts can all affect where emergency luminaires need to be positioned and how effectively they illuminate escape routes.
The current UK code of practice is BS 5266-1:2025, which provides recommendations and guidance covering the design, installation and wiring of emergency lighting systems. Warehouse emergency lighting should also be considered alongside the premises’ fire risk assessment and overall evacuation arrangements.
For businesses requiring professional fire and security support, William Hale can help with the design, installation and ongoing maintenance of emergency lighting systems for commercial premises.
What Does Warehouse Emergency Lighting Need to Achieve?
The fundamental purpose of emergency lighting is to provide illumination when the normal lighting supply fails.
Government workplace fire safety guidance states that evacuation arrangements should include emergency lighting where it is needed, along with clearly marked escape routes, adequate exits and appropriate staff training.
For a warehouse, the design therefore needs to consider how occupants will move from their working position towards a place of safety.
| Design Area | Main Objective |
|---|---|
| Escape routes | Help occupants travel safely towards exits |
| Emergency exits | Make final exits identifiable |
| Changes in level | Highlight potential trip and fall hazards |
| Stairways | Provide adequate illumination for safe descent |
| Intersections | Help people identify the correct route |
| Open areas | Reduce confusion and assist movement |
| Fire equipment | Help important equipment remain identifiable |
| High-risk areas | Support safe shutdown or evacuation where appropriate |
| External escape areas | Assist movement away from the building |
Emergency lighting design should therefore start with the building and its escape strategy rather than simply deciding how many fittings to purchase.
Start With the Warehouse Fire Risk Assessment
A good emergency lighting design should be informed by the warehouse fire risk assessment.
Government guidance specifically addresses factories and warehouses and is intended for employers, managers, occupiers and owners responsible for these types of premises.
The designer needs to understand factors such as:
- Number of employees
- Shift patterns
- Visitors and contractors
- Warehouse dimensions
- Escape route locations
- Fire exit positions
- Mezzanine floors
- Storage arrangements
- High-bay racking
- Machinery
- Loading and dispatch areas
- Areas with particular hazards
- External escape routes
Designing the emergency lighting without understanding these features can result in a system that looks adequate on a drawing but performs poorly in the real warehouse environment.
High-Bay Racking Needs Special Consideration
Racking is one of the biggest issues when designing emergency lighting for warehouses.
An empty warehouse can appear extremely open. However, once rows of tall pallet racking are installed, the building changes dramatically.
Racking may:
- Obstruct light
- Create long aisles
- Hide exit signs
- Restrict sightlines
- Change escape routes
- Create areas of shadow
- Make fittings more difficult to access
Emergency lighting should therefore be designed around the final warehouse layout, wherever possible.
Installing a generic emergency lighting system before the racking layout has been determined can create additional work later.
Emergency Lighting Between Warehouse Aisles
Warehouse aisles may effectively become escape routes, particularly where employees regularly work between storage racks.
The designer needs to consider whether occupants can move safely through these areas when the main lighting fails.
For example, a worker operating halfway along a long picking aisle may need to travel towards a cross-aisle before reaching a recognised escape route.
The system therefore needs to consider the journey occupants actually make.
| Warehouse Feature | Design Question |
|---|---|
| Long picking aisle | Can occupants see where to travel? |
| Cross-aisle | Is the route direction obvious? |
| Tall racking | Does it block emergency illumination? |
| End-of-aisle exit sign | Can it be seen from working positions? |
| Temporary stock | Could it obstruct emergency lighting? |
| Narrow aisle | Is sufficient illumination reaching floor level? |
Warehouse design should never assume that light will travel freely through tall storage systems.
Positioning Emergency Exit Signs
Exit signage forms an important part of the evacuation system.
Signs should be positioned so that people can identify the direction they need to travel, particularly where the correct escape route is not immediately obvious.
In a warehouse environment, the height and position of signs require particular attention because pallet racking and stock can easily interfere with sightlines.
A sign mounted in an apparently logical position when the building is empty could become completely hidden once storage racks are filled.
Signs should therefore be considered at:
- Final exits
- Changes in escape direction
- Junctions
- Corridor intersections
- Stairways
- Mezzanine escape routes
- Areas where an exit is not immediately visible
The design should make the route intuitive rather than expecting employees to remember it when the building is dark and an emergency is taking place.
Designing Emergency Lighting for Mezzanine Floors
Mezzanine floors add another level of complexity.
Workers located on an upper mezzanine need to reach stairs safely before continuing towards a final exit.
The emergency lighting design may therefore need to account for:
- Routes across the mezzanine
- Stair approaches
- Staircases
- Changes in floor level
- Directional signs
- Routes underneath the mezzanine
- Enclosed rooms constructed on the mezzanine
- The final route towards an external exit
A mezzanine that changes use should also trigger a review.
For example, an area originally intended for occasional storage could later be converted into permanent picking stations, offices or packing areas.
The emergency lighting arrangements should reflect how the space is currently occupied.
Loading Bays Need Their Own Design Review
Loading and dispatch areas can be complicated environments during a mains lighting failure.
There may be:
- HGVs
- Forklift trucks
- Loading platforms
- Dock levellers
- Roller shutters
- Pallet stacks
- Pedestrian walkways
- Changes of level
Emergency escape routes should remain identifiable even when the loading bay’s normal lighting is unavailable.
Designers should also consider whether loading operations could regularly obstruct signs or luminaires.
A fitting located above a storage position may be technically well placed when the position is empty but significantly less useful when tall pallets are stored beneath it.
Where Should Emergency Luminaires Be Positioned?
There is no universal warehouse layout that dictates an identical fitting position for every building.
The correct locations depend on the escape routes and risk assessment.
Typical areas requiring particular consideration include:
| Location | Reason for Consideration |
|---|---|
| Fire exits | Help occupants identify the way out |
| Staircases | Safe movement between levels |
| Changes in level | Reduce trip and fall risks |
| Escape route intersections | Clarify direction |
| Changes of direction | Help people follow the route |
| Fire alarm call points | Assist identification where required |
| Firefighting equipment | Assist identification where required |
| Open areas | Support movement and reduce confusion |
| High-risk areas | Enable appropriate emergency actions |
| External routes | Help occupants move towards safety |
The design should be based on calculated lighting performance rather than simply spacing fittings evenly across the ceiling.
Open-Area Emergency Lighting
Large warehouse floors can contain substantial open areas.
Open-area emergency lighting, sometimes historically referred to as anti-panic lighting, is intended to provide enough illumination to help people orientate themselves and move towards an escape route.
This may be particularly relevant in:
- Packing areas
- Goods-in areas
- Dispatch zones
- Production areas
- Open storage spaces
- Large picking areas
A complete design needs to consider both defined escape routes and larger areas occupied by workers.
Emergency Lighting Around Fire Safety Equipment
Certain safety equipment may also need to remain visible during a normal lighting failure.
Depending on the premises and system design, this may include:
- Fire alarm call points
- Fire alarm control panels
- Fire extinguishers
- Other firefighting equipment
- First-aid equipment where relevant
- Refuge communication points where applicable
Emergency lighting should form part of the wider fire safety system rather than being treated as an isolated lighting installation.
William Hale provides commercial fire and security services, allowing emergency lighting requirements to be considered alongside other important fire safety systems.
Maintained vs Non-Maintained Emergency Lighting
One design decision is whether emergency luminaires should operate continuously or only when the normal lighting supply fails.
Maintained emergency lighting remains illuminated during normal operation and continues operating from its emergency power source when the mains supply fails.
Non-maintained emergency lighting normally remains off and switches on following failure of the normal lighting supply.
The appropriate solution depends on the location, use of the building and overall design strategy.
| Type | Normal Operation | During Power Failure |
|---|---|---|
| Maintained | Illuminated | Remains illuminated |
| Non-maintained | Normally off | Illuminates automatically |
| Combined arrangement | Depends on system design | Emergency element operates |
Warehouses may contain different types within the same building depending on operational needs.
Consider Emergency Lighting Duration
Emergency luminaires are designed to operate from an alternative power source when the normal supply fails.
The required duration needs to be considered as part of the design and specification.
This is important because emergency lighting does not simply need to turn on; it needs to remain operational for the period required by the applicable design and evacuation strategy.
Battery performance also becomes a long-term maintenance consideration because batteries deteriorate over time.
The system should therefore be designed with future testing and maintenance in mind.
Designing for Warehouse Height
High warehouse ceilings create a common design challenge.
Installing a powerful emergency fitting at great height does not automatically mean suitable illumination will reach the working or escape-route level below.
Designers need to consider:
- Mounting height
- Luminaire performance
- Beam distribution
- Spacing
- Racking obstruction
- Floor-level illumination
- Access for installation
- Access for future maintenance
A warehouse emergency lighting design should therefore be based on suitable lighting calculations and product performance data.
Guessing fitting positions based purely on appearance can result in under-lit areas or unnecessary numbers of luminaires.
Do Not Forget Future Maintenance Access
Emergency lighting has to be tested and maintained after installation.
This means the most technically convenient position from a lighting perspective should also be assessed from a practical maintenance perspective.
If every fitting requires complicated high-level access, future maintenance may become unnecessarily disruptive and expensive.
Access considerations may include:
| Issue | Design Consideration |
|---|---|
| High ceilings | How will fittings be reached? |
| Narrow aisles | Can suitable access equipment enter? |
| Fixed machinery | Could it prevent future access? |
| Racking | Will stock need removing for servicing? |
| 24-hour operations | When can maintenance be performed? |
| Loading areas | Can work be carried out without disrupting vehicles? |
Designing for maintainability can reduce difficulties over the lifetime of the emergency lighting system.
Think About Testing at the Design Stage
Emergency lighting systems require ongoing testing.
A well-designed system should make testing manageable rather than creating unnecessary disruption every month.
The design can consider:
- Test switch locations
- Identification of circuits
- Individual fitting references
- System zoning
- Automated testing options where appropriate
- Access to indicators
- Recording procedures
On a large distribution centre containing many emergency luminaires, these details can make a substantial difference to long-term facilities management.
Warehouse Layout Changes Can Invalidate the Original Design
One of the biggest mistakes warehouse operators can make is assuming that emergency lighting remains suitable indefinitely because it was compliant when installed.
Warehouses frequently change.
New racking may be installed, picking routes altered, mezzanines constructed or machinery moved.
Each significant change can influence emergency lighting.
A review should therefore be considered when there are changes such as:
- New high-bay racking
- New mezzanine floors
- Warehouse extensions
- New internal walls
- Altered escape routes
- New machinery
- Changes to loading areas
- Increased occupancy
- Changes in building use
The emergency lighting design should continue to reflect the building as it actually operates.
New Warehouse Emergency Lighting vs Retrofitting
Designing emergency lighting for a new warehouse is generally different from upgrading an existing building.
With a new development, the system can be coordinated with:
- Electrical installation
- Fire alarm systems
- Racking
- Building layout
- Mezzanines
- Escape routes
- Loading operations
A retrofit needs to work around existing infrastructure.
| New Installation | Retrofit |
|---|---|
| Design can begin from plans | Existing conditions must be surveyed |
| Cabling can be coordinated | New cables may require alternative routes |
| Racking can be considered early | Existing racking may restrict access |
| Equipment positions can be planned | Existing fittings may need relocation |
| Installation can align with fit-out | Work may occur around live operations |
Neither approach should be based on a one-size-fits-all specification.
Why Professional Warehouse Emergency Lighting Design Matters
Warehouse emergency lighting combines fire safety, electrical installation, lighting performance and practical building operations.
A professional design can examine the premises as a complete system rather than treating every emergency luminaire independently.
BS 5266-1:2025 specifically provides guidance relating to emergency lighting design, installation and wiring, while government fire safety guidance requires responsible persons to consider measures such as emergency lighting where needed for safe evacuation.
This is particularly important in large or complex warehouses where small design mistakes can potentially create substantial dark areas or confusing escape routes.
What Should Be Included in a Warehouse Emergency Lighting Design Review?
A detailed design review might consider:
| Design Element | Review Question |
|---|---|
| Building layout | Does the design reflect the actual warehouse? |
| Escape routes | Are all routes properly considered? |
| Racking | Does it obstruct illumination or signs? |
| Mezzanines | Are upper and lower areas covered? |
| Exits | Are final exits clearly identifiable? |
| Open areas | Is suitable emergency illumination provided? |
| High-risk areas | Has the risk assessment identified specific requirements? |
| Loading areas | Are pedestrian escape routes adequately considered? |
| External routes | Can occupants continue safely away from exits? |
| Testing | Can the system be tested efficiently? |
| Maintenance | Can fittings be safely accessed? |
| Future changes | Is there scope for reasonable adaptation? |
How Much Does Professional Warehouse Emergency Lighting Design Cost?
The cost depends on the size and complexity of the building.
A small warehouse with simple escape routes will normally require considerably less design and installation work than a major distribution centre with high-bay racking, multiple mezzanines and extensive operational areas.
Professional warehouse emergency lighting projects can run into several thousand pounds, while large, complicated installations may reach £10,000–£20,000+ or substantially more depending on the equipment, access and installation requirements.
Price should not be the only deciding factor.
A cheaper proposal based on minimal assessment may not represent the same scope as a professionally designed system involving detailed planning, suitable commercial equipment, installation, testing, commissioning and ongoing support.
For a safety-critical system, whole-life performance and reliability should be considered alongside initial expenditure.
Building Emergency Lighting Into the Wider Fire and Security Strategy
Emergency lighting works alongside other warehouse fire safety measures.
The wider strategy can include:
- Fire detection
- Fire alarms
- Escape routes
- Fire doors
- Emergency signage
- Emergency lighting
- Firefighting equipment
- Evacuation procedures
- Staff training
Treating all of these elements as connected systems can produce a more coordinated approach to warehouse fire safety.
Emergency lighting only becomes noticeable when the normal lighting fails, but that is precisely when its design matters most.
For warehouses requiring professional support with emergency lighting and wider commercial fire and security systems, William Hale can assess the premises and develop a solution based on the warehouse layout, escape arrangements and operational requirements.
Warehouse Emergency Lighting Design Guide
Emergency lighting in a warehouse needs to do much more than simply provide a few illuminated exit signs. A properly designed system should help employees, contractors and visitors move safely through the building if the normal lighting supply fails.
Warehouses can make emergency lighting design particularly challenging. High ceilings, tall pallet racking, large open areas, mezzanine floors, loading bays and frequently changing layouts can all affect where emergency luminaires need to be positioned and how effectively they illuminate escape routes.
The current UK code of practice is BS 5266-1:2025, which provides recommendations and guidance covering the design, installation and wiring of emergency lighting systems. Warehouse emergency lighting should also be considered alongside the premises’ fire risk assessment and overall evacuation arrangements.
For businesses requiring professional fire and security support, William Hale can help with the design, installation and ongoing maintenance of emergency lighting systems for commercial premises.
What Does Warehouse Emergency Lighting Need to Achieve?
The fundamental purpose of emergency lighting is to provide illumination when the normal lighting supply fails.
Government workplace fire safety guidance states that evacuation arrangements should include emergency lighting where it is needed, along with clearly marked escape routes, adequate exits and appropriate staff training.
For a warehouse, the design therefore needs to consider how occupants will move from their working position towards a place of safety.
| Design Area | Main Objective |
|---|---|
| Escape routes | Help occupants travel safely towards exits |
| Emergency exits | Make final exits identifiable |
| Changes in level | Highlight potential trip and fall hazards |
| Stairways | Provide adequate illumination for safe descent |
| Intersections | Help people identify the correct route |
| Open areas | Reduce confusion and assist movement |
| Fire equipment | Help important equipment remain identifiable |
| High-risk areas | Support safe shutdown or evacuation where appropriate |
| External escape areas | Assist movement away from the building |
Emergency lighting design should therefore start with the building and its escape strategy rather than simply deciding how many fittings to purchase.
Start With the Warehouse Fire Risk Assessment
A good emergency lighting design should be informed by the warehouse fire risk assessment.
Government guidance specifically addresses factories and warehouses and is intended for employers, managers, occupiers and owners responsible for these types of premises.
The designer needs to understand factors such as:
- Number of employees
- Shift patterns
- Visitors and contractors
- Warehouse dimensions
- Escape route locations
- Fire exit positions
- Mezzanine floors
- Storage arrangements
- High-bay racking
- Machinery
- Loading and dispatch areas
- Areas with particular hazards
- External escape routes
Designing the emergency lighting without understanding these features can result in a system that looks adequate on a drawing but performs poorly in the real warehouse environment.
High-Bay Racking Needs Special Consideration
Racking is one of the biggest issues when designing emergency lighting for warehouses.
An empty warehouse can appear extremely open. However, once rows of tall pallet racking are installed, the building changes dramatically.
Racking may:
- Obstruct light
- Create long aisles
- Hide exit signs
- Restrict sightlines
- Change escape routes
- Create areas of shadow
- Make fittings more difficult to access
Emergency lighting should therefore be designed around the final warehouse layout, wherever possible.
Installing a generic emergency lighting system before the racking layout has been determined can create additional work later.
Emergency Lighting Between Warehouse Aisles
Warehouse aisles may effectively become escape routes, particularly where employees regularly work between storage racks.
The designer needs to consider whether occupants can move safely through these areas when the main lighting fails.
For example, a worker operating halfway along a long picking aisle may need to travel towards a cross-aisle before reaching a recognised escape route.
The system therefore needs to consider the journey occupants actually make.
| Warehouse Feature | Design Question |
|---|---|
| Long picking aisle | Can occupants see where to travel? |
| Cross-aisle | Is the route direction obvious? |
| Tall racking | Does it block emergency illumination? |
| End-of-aisle exit sign | Can it be seen from working positions? |
| Temporary stock | Could it obstruct emergency lighting? |
| Narrow aisle | Is sufficient illumination reaching floor level? |
Warehouse design should never assume that light will travel freely through tall storage systems.
Positioning Emergency Exit Signs
Exit signage forms an important part of the evacuation system.
Signs should be positioned so that people can identify the direction they need to travel, particularly where the correct escape route is not immediately obvious.
In a warehouse environment, the height and position of signs require particular attention because pallet racking and stock can easily interfere with sightlines.
A sign mounted in an apparently logical position when the building is empty could become completely hidden once storage racks are filled.
Signs should therefore be considered at:
- Final exits
- Changes in escape direction
- Junctions
- Corridor intersections
- Stairways
- Mezzanine escape routes
- Areas where an exit is not immediately visible
The design should make the route intuitive rather than expecting employees to remember it when the building is dark and an emergency is taking place.
Designing Emergency Lighting for Mezzanine Floors
Mezzanine floors add another level of complexity.
Workers located on an upper mezzanine need to reach stairs safely before continuing towards a final exit.
The emergency lighting design may therefore need to account for:
- Routes across the mezzanine
- Stair approaches
- Staircases
- Changes in floor level
- Directional signs
- Routes underneath the mezzanine
- Enclosed rooms constructed on the mezzanine
- The final route towards an external exit
A mezzanine that changes use should also trigger a review.
For example, an area originally intended for occasional storage could later be converted into permanent picking stations, offices or packing areas.
The emergency lighting arrangements should reflect how the space is currently occupied.
Loading Bays Need Their Own Design Review
Loading and dispatch areas can be complicated environments during a mains lighting failure.
There may be:
- HGVs
- Forklift trucks
- Loading platforms
- Dock levellers
- Roller shutters
- Pallet stacks
- Pedestrian walkways
- Changes of level
Emergency escape routes should remain identifiable even when the loading bay’s normal lighting is unavailable.
Designers should also consider whether loading operations could regularly obstruct signs or luminaires.
A fitting located above a storage position may be technically well placed when the position is empty but significantly less useful when tall pallets are stored beneath it.
Where Should Emergency Luminaires Be Positioned?
There is no universal warehouse layout that dictates an identical fitting position for every building.
The correct locations depend on the escape routes and risk assessment.
Typical areas requiring particular consideration include:
| Location | Reason for Consideration |
|---|---|
| Fire exits | Help occupants identify the way out |
| Staircases | Safe movement between levels |
| Changes in level | Reduce trip and fall risks |
| Escape route intersections | Clarify direction |
| Changes of direction | Help people follow the route |
| Fire alarm call points | Assist identification where required |
| Firefighting equipment | Assist identification where required |
| Open areas | Support movement and reduce confusion |
| High-risk areas | Enable appropriate emergency actions |
| External routes | Help occupants move towards safety |
The design should be based on calculated lighting performance rather than simply spacing fittings evenly across the ceiling.
Open-Area Emergency Lighting
Large warehouse floors can contain substantial open areas.
Open-area emergency lighting, sometimes historically referred to as anti-panic lighting, is intended to provide enough illumination to help people orientate themselves and move towards an escape route.
This may be particularly relevant in:
- Packing areas
- Goods-in areas
- Dispatch zones
- Production areas
- Open storage spaces
- Large picking areas
A complete design needs to consider both defined escape routes and larger areas occupied by workers.
Emergency Lighting Around Fire Safety Equipment
Certain safety equipment may also need to remain visible during a normal lighting failure.
Depending on the premises and system design, this may include:
- Fire alarm call points
- Fire alarm control panels
- Fire extinguishers
- Other firefighting equipment
- First-aid equipment where relevant
- Refuge communication points where applicable
Emergency lighting should form part of the wider fire safety system rather than being treated as an isolated lighting installation.
William Hale provides commercial fire and security services, allowing emergency lighting requirements to be considered alongside other important fire safety systems.
Maintained vs Non-Maintained Emergency Lighting
One design decision is whether emergency luminaires should operate continuously or only when the normal lighting supply fails.
Maintained emergency lighting remains illuminated during normal operation and continues operating from its emergency power source when the mains supply fails.
Non-maintained emergency lighting normally remains off and switches on following failure of the normal lighting supply.
The appropriate solution depends on the location, use of the building and overall design strategy.
| Type | Normal Operation | During Power Failure |
|---|---|---|
| Maintained | Illuminated | Remains illuminated |
| Non-maintained | Normally off | Illuminates automatically |
| Combined arrangement | Depends on system design | Emergency element operates |
Warehouses may contain different types within the same building depending on operational needs.
Consider Emergency Lighting Duration
Emergency luminaires are designed to operate from an alternative power source when the normal supply fails.
The required duration needs to be considered as part of the design and specification.
This is important because emergency lighting does not simply need to turn on; it needs to remain operational for the period required by the applicable design and evacuation strategy.
Battery performance also becomes a long-term maintenance consideration because batteries deteriorate over time.
The system should therefore be designed with future testing and maintenance in mind.
Designing for Warehouse Height
High warehouse ceilings create a common design challenge.
Installing a powerful emergency fitting at great height does not automatically mean suitable illumination will reach the working or escape-route level below.
Designers need to consider:
- Mounting height
- Luminaire performance
- Beam distribution
- Spacing
- Racking obstruction
- Floor-level illumination
- Access for installation
- Access for future maintenance
A warehouse emergency lighting design should therefore be based on suitable lighting calculations and product performance data.
Guessing fitting positions based purely on appearance can result in under-lit areas or unnecessary numbers of luminaires.
Do Not Forget Future Maintenance Access
Emergency lighting has to be tested and maintained after installation.
This means the most technically convenient position from a lighting perspective should also be assessed from a practical maintenance perspective.
If every fitting requires complicated high-level access, future maintenance may become unnecessarily disruptive and expensive.
Access considerations may include:
| Issue | Design Consideration |
|---|---|
| High ceilings | How will fittings be reached? |
| Narrow aisles | Can suitable access equipment enter? |
| Fixed machinery | Could it prevent future access? |
| Racking | Will stock need removing for servicing? |
| 24-hour operations | When can maintenance be performed? |
| Loading areas | Can work be carried out without disrupting vehicles? |
Designing for maintainability can reduce difficulties over the lifetime of the emergency lighting system.
Think About Testing at the Design Stage
Emergency lighting systems require ongoing testing.
A well-designed system should make testing manageable rather than creating unnecessary disruption every month.
The design can consider:
- Test switch locations
- Identification of circuits
- Individual fitting references
- System zoning
- Automated testing options where appropriate
- Access to indicators
- Recording procedures
On a large distribution centre containing many emergency luminaires, these details can make a substantial difference to long-term facilities management.
Warehouse Layout Changes Can Invalidate the Original Design
One of the biggest mistakes warehouse operators can make is assuming that emergency lighting remains suitable indefinitely because it was compliant when installed.
Warehouses frequently change.
New racking may be installed, picking routes altered, mezzanines constructed or machinery moved.
Each significant change can influence emergency lighting.
A review should therefore be considered when there are changes such as:
- New high-bay racking
- New mezzanine floors
- Warehouse extensions
- New internal walls
- Altered escape routes
- New machinery
- Changes to loading areas
- Increased occupancy
- Changes in building use
The emergency lighting design should continue to reflect the building as it actually operates.
New Warehouse Emergency Lighting vs Retrofitting
Designing emergency lighting for a new warehouse is generally different from upgrading an existing building.
With a new development, the system can be coordinated with:
- Electrical installation
- Fire alarm systems
- Racking
- Building layout
- Mezzanines
- Escape routes
- Loading operations
A retrofit needs to work around existing infrastructure.
| New Installation | Retrofit |
|---|---|
| Design can begin from plans | Existing conditions must be surveyed |
| Cabling can be coordinated | New cables may require alternative routes |
| Racking can be considered early | Existing racking may restrict access |
| Equipment positions can be planned | Existing fittings may need relocation |
| Installation can align with fit-out | Work may occur around live operations |
Neither approach should be based on a one-size-fits-all specification.
Why Professional Warehouse Emergency Lighting Design Matters
Warehouse emergency lighting combines fire safety, electrical installation, lighting performance and practical building operations.
A professional design can examine the premises as a complete system rather than treating every emergency luminaire independently.
BS 5266-1:2025 specifically provides guidance relating to emergency lighting design, installation and wiring, while government fire safety guidance requires responsible persons to consider measures such as emergency lighting where needed for safe evacuation.
This is particularly important in large or complex warehouses where small design mistakes can potentially create substantial dark areas or confusing escape routes.
What Should Be Included in a Warehouse Emergency Lighting Design Review?
A detailed design review might consider:
| Design Element | Review Question |
|---|---|
| Building layout | Does the design reflect the actual warehouse? |
| Escape routes | Are all routes properly considered? |
| Racking | Does it obstruct illumination or signs? |
| Mezzanines | Are upper and lower areas covered? |
| Exits | Are final exits clearly identifiable? |
| Open areas | Is suitable emergency illumination provided? |
| High-risk areas | Has the risk assessment identified specific requirements? |
| Loading areas | Are pedestrian escape routes adequately considered? |
| External routes | Can occupants continue safely away from exits? |
| Testing | Can the system be tested efficiently? |
| Maintenance | Can fittings be safely accessed? |
| Future changes | Is there scope for reasonable adaptation? |
How Much Does Professional Warehouse Emergency Lighting Design Cost?
The cost depends on the size and complexity of the building.
A small warehouse with simple escape routes will normally require considerably less design and installation work than a major distribution centre with high-bay racking, multiple mezzanines and extensive operational areas.
Professional warehouse emergency lighting projects can run into several thousand pounds, while large, complicated installations may reach £10,000–£20,000+ or substantially more depending on the equipment, access and installation requirements.
Price should not be the only deciding factor.
A cheaper proposal based on minimal assessment may not represent the same scope as a professionally designed system involving detailed planning, suitable commercial equipment, installation, testing, commissioning and ongoing support.
For a safety-critical system, whole-life performance and reliability should be considered alongside initial expenditure.
Building Emergency Lighting Into the Wider Fire and Security Strategy
Emergency lighting works alongside other warehouse fire safety measures.
The wider strategy can include:
- Fire detection
- Fire alarms
- Escape routes
- Fire doors
- Emergency signage
- Emergency lighting
- Firefighting equipment
- Evacuation procedures
- Staff training
Treating all of these elements as connected systems can produce a more coordinated approach to warehouse fire safety.
Emergency lighting only becomes noticeable when the normal lighting fails, but that is precisely when its design matters most.
For warehouses requiring professional support with emergency lighting and wider commercial fire and security systems, William Hale can assess the premises and develop a solution based on the warehouse layout, escape arrangements and operational requirements.
Designing Emergency Lighting for Cold Stores and Temperature-Controlled Warehouses
Cold stores and temperature-controlled warehouse environments can introduce additional design considerations.
Emergency luminaires installed in these areas need to be suitable for the conditions in which they will operate. Temperature, condensation and the general environment can all influence equipment selection and long-term reliability.
The design should also consider how employees would evacuate from the cold store if the normal lighting failed. Routes may pass through insulated doors, airlocks or other enclosed areas before reaching the main warehouse.
Important questions can include:
- Is the emergency lighting equipment suitable for the operating temperature?
- Are escape routes through temperature-controlled zones clearly illuminated?
- Are emergency exit signs visible when doors are open and closed?
- Could condensation or moisture affect fittings?
- Can luminaires be accessed for future testing and maintenance?
- Are any plant or compressor areas included in the emergency lighting assessment?
The right fitting specification is just as important as the fitting location. A product that performs well in an ordinary internal warehouse area may not necessarily be the right choice for a harsher environment.
Emergency Lighting for Automated Warehouses
Modern warehouses increasingly use automated storage and retrieval systems, conveyors, robotics and extensive materials-handling technology.
These systems can alter how people move through the building and can introduce significant fixed structures that affect emergency lighting distribution.
An automated warehouse may have relatively few employees in some storage zones, but maintenance engineers and contractors may still need access. Emergency lighting arrangements should therefore consider both normal occupancy and foreseeable access for maintenance or fault response.
| Automated Warehouse Feature | Design Consideration |
|---|---|
| Conveyor systems | Can they obstruct light or escape routes? |
| Automated racking | Are maintenance access routes covered? |
| Robotics zones | How will staff evacuate from controlled areas? |
| Machine guarding | Could it block sightlines to signs? |
| Control rooms | Are escape routes and exits clearly illuminated? |
| Maintenance walkways | Are changes in level adequately considered? |
Emergency lighting design should reflect the completed operational environment rather than simply the architectural shell.
How Lighting Calculations Support the Design
Professional emergency lighting design is not based purely on visual judgement.
Lighting calculations can help demonstrate whether the proposed fittings are likely to provide suitable illumination in the areas where it is required.
The calculation process can take account of factors such as:
- Mounting height
- Luminaire output
- Spacing between fittings
- Light distribution
- Escape route width
- Open-area dimensions
- Obstructions
- Racking and structural features
This is particularly valuable in large warehouses because simply adding more fittings does not automatically create a better design.
Too few fittings can create inadequate coverage, while excessive or poorly positioned fittings can increase installation and future maintenance costs without solving the underlying design problem.
A carefully planned system aims to place the right equipment in the right locations.
The Importance of As-Built Drawings and Records
Once an emergency lighting installation has been completed, accurate records can make future management considerably easier.
For a large warehouse, an as-built drawing or location plan can show where fittings, exit signs, test facilities and relevant circuits are positioned.
This information can be especially useful when the building contains dozens or even hundreds of emergency luminaires.
Good documentation can support:
- Routine testing
- Fault reporting
- Future alterations
- Maintenance planning
- Battery replacement
- Engineer visits
- Refurbishment projects
Individual fittings can also be given reference numbers so that faults can be identified precisely.
For example, EM-WH-B-024 is far more useful than a maintenance report that simply says “failed light near the back of the warehouse”.
Designing Emergency Lighting Around Expansion Plans
Warehouse businesses often grow quickly. A building that begins with several open storage zones may later gain additional racking, mezzanines, packing lines or office areas.
Where future changes are already known, discussing them during the emergency lighting design stage can be worthwhile.
It may not be practical or necessary to install equipment for a future layout that does not yet exist, but understanding the longer-term plan can help avoid unnecessary design decisions.
For example, if a mezzanine is planned for the following year, it may be sensible to consider how cabling routes, testing arrangements and the existing lighting strategy could be adapted later.
This can be particularly valuable in fast-growing distribution and fulfilment businesses where the internal layout changes regularly.
Emergency Lighting for External Warehouse Routes
The emergency lighting design should not necessarily stop at the final exit door.
Occupants may need to travel along external walkways, around corners, down steps or across enclosed yards before reaching a place of safety.
External routes can become especially difficult to navigate during darkness, bad weather or a complete local power failure.
Design considerations may therefore include:
| External Area | What to Assess |
|---|---|
| Exit door threshold | Is the immediate area visible? |
| External steps | Can users see changes in level? |
| Ramps | Is the route safely identifiable? |
| Walkways | Can people continue towards safety? |
| Enclosed yards | Are there hazards or obstructions? |
| Routes between buildings | Is the onward direction obvious? |
The overall objective is to ensure that people are not safely guided out of the warehouse only to encounter an unlit or hazardous external route immediately afterwards.
Emergency Lighting and Temporary Warehouse Changes
Not every warehouse change is permanent.
Peak trading periods can introduce temporary racking, overflow storage, cages, additional packing tables or seasonal work areas. These changes can still affect emergency lighting and escape signage even if they are only present for a few weeks or months.
Before a temporary layout goes live, facilities managers should consider whether it:
- Blocks emergency luminaires
- Obscures exit signs
- Narrows escape routes
- Changes pedestrian movement
- Creates new occupied work areas
- Introduces additional trip hazards
Temporary does not mean irrelevant from a fire safety perspective.
Reviewing Design After Installation
Commissioning should not be viewed as the end of the design process forever.
The emergency lighting system should be reviewed whenever the building changes in a way that could affect evacuation or illumination.
A practical review trigger table might look like this:
| Change | Design Review Recommended? |
|---|---|
| New mezzanine | Yes |
| Major racking alteration | Yes |
| Warehouse extension | Yes |
| New internal walls | Yes |
| Changed escape route | Yes |
| New automated equipment | Yes |
| Significant occupancy increase | Yes |
| Minor stock movement | Usually managed through routine checks |
This helps ensure that the emergency lighting continues to suit the warehouse that actually exists rather than the warehouse that was originally designed several years earlier.
Choosing a Professional Fire and Security Partner
Emergency lighting design is closely linked to wider fire safety arrangements, so using a professional fire and security company can make coordination easier.
A specialist can consider the relationship between emergency lighting, fire alarm systems, escape routes, signage and the practical operation of the warehouse.
When comparing proposals, businesses should look beyond the number of fittings and the headline price. A more comprehensive design may include detailed assessment, appropriate commercial-grade equipment, professional installation, testing, commissioning, documentation and ongoing maintenance support.
For a large warehouse, investing in a carefully designed system can also reduce the risk of costly alterations later because fittings have been positioned without sufficient consideration of racking, access or operational changes.
William Hale can support warehouse operators with professional emergency lighting design, installation and ongoing fire and security requirements, with solutions based around the specific layout and operating conditions of the premises.