cibse recommended light levels

CIBSE Recommended Lighting Levels

CategoryArea / SpaceRecommended Lighting Level (Lux)
OfficesGeneral Office500
 Computer Workstations300–500
 Filing Rooms300
 Print Rooms300
 Drawing Offices500
 Drawing Boards750
 CAD Design Areas300–500
RetailSmall Retail Outlets500
 Supermarkets750
 Hypermarkets / DIY Superstores1000
 Garden Centres500
 Showrooms500–750
Industrial / EngineeringTool Shops300–750
 Arc Welding300
 Spot Welding500–1000
 Heavy Machine Assembly300
 Inspection and Testing500–2000
 Engraving, Polishing750
 Precision Work1000
 Jewellery Manufacture1500
 Aircraft Hangars (Maintenance)500–1500
 Aircraft Hangars (Inspection)2000–5000
 Workshops (Testing Area)1500
Food Production & AgricultureFood Storage150–200
 Food Sorting / Preparation300
 Critical Zones (Food Production)500
 Colour Inspection (Food)1000
 Livestock Buildings50
 Sick Pens / Calving Stalls / Feed Preparation200
Cold Stores & FreezersCold Store Aisles100–200
 Cold Store Open Areas300
 Freezer Aisles100–300
 Freezer Open Areas300
Distribution & StorageLoading Bays150–500
 Warehouse / Bulk Stores100
 Packing & Dispatch300
 Unpacking & Sorting Areas200
 Large Item Stores100
 Small Item Stores200
 Trade Counters500
Banks & Building SocietiesCounter Offices500
 Public Areas300
Staff Areas & UtilitiesChanging Rooms & Toilets100–150
 Restaurants & Canteens200
KitchensServing & Washing Up Areas300
 Food Preparation & Cooking Areas500
General AreasEntrance Halls & Lobbies200
 Enquiry Desks500
 Gatehouses200
Circulation AreasLifts100
 Corridors & Stairs100
 Escalators / Conveyors150
 Atria50–200
 Atria with Plants500–3000
 Entrances / Exits200
Communication / Service AreasSwitchboards300
 Post Rooms500
Building Services AreasBoiler Rooms100
 Control Rooms300
 Mechanical Plant Rooms150
 Electrical Plant Rooms100
Places of Public AccessibilityChurches & Village Halls300
Emergency LightingEscape Routes (Corridors)1–3
 Staircases3–5
 Exit Signage & Critical Areas10
Healthcare (from CIBSE LG2)Patient Rooms300–500
 Surgical Suites1000–3000
 Hospital Corridors (Day)200
 Hospital Corridors (Night)50
Cultural & Heritage SpacesWorks on Paper50–80
 Oil Paintings200–250
 Sculptures200–300
Educational FacilitiesClassrooms300–500
 Lecture Halls500
Display Screen AreasScreen Workstations300–500
Conservation-Critical ZonesArchival Storage50–100

 

 

Table 2. Emergency Lighting Levels

Emergency Lighting AreaRecommended Level (Lux)Notes
Escape Routes (Corridors)1–3Minimum illumination to safely guide occupants
Staircases3–5Enhanced lighting to clearly reveal steps
Exit Signage & Critical Areas10Ensures emergency signs and key points are visible

Visit for more detailed information on emergency lighting levels.

 

Additional Guidance

  • Workplace Lighting Balance:
    Modern guidance (as noted in the CIBSE Journal article) emphasizes balancing ambient and task lighting. For example, ambient office areas are typically maintained at 300–500 lux, while specific task areas (such as drafting or detailed workstations) may require 750 lux or more.

  • Important Note:
    These figures are recommended guidelines. Actual requirements may vary based on local standards, specific building use, and individual project needs. Always consult with a lighting designer or engineer to tailor solutions for your circumstances.

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