Warehouse and Office Lighting: How Many Lux per Area Does EN 12464-1 Actually Require?
Direct answer: EN 12464-1 sets maintained illuminance on the work plane — offices 500 lx (UGR ≤ 19, Ra ≥ 80), meeting rooms 300-500 lx, warehouse aisles and bulk storage 100-200 lx, packing/sorting 200-300 lx, precision assembly and inspection 500-750 lx (Ra 80-90). These are maintained values: plan for 20-30% more initial lumens to cover dirt and LED depreciation. Below is the zone-by-zone table and calculation method.
1. Complete Scenario-Based Solution: Plan Lux by Zone, Not by Building
- Split the facility into zones with different visual tasks: circulation aisles, racking storage, packing/sorting stations, inspection benches, office desks. Each zone has its own maintained-lux target.
- Use these EN 12464-1 reference targets: office reading/writing 500 lx; meeting rooms 300-500 lx; reception 300 lx; corridors 100 lx; warehouse storage (occasional access) 100 lx; storage (frequent access) 200 lx; packing and sorting 200-300 lx; general assembly 300 lx; fine assembly/inspection 500-750 lx; technical drawing 750 lx.
- Apply the maintenance factor: specify luminaires with 20-30% higher initial output than the maintained target, because dirt and lumen depreciation (LM-80/TM-21) reduce output over time. "Maintained 200 lx" usually means installing ~250-300 initial lx.
- Check uniformity and glare, not just lux: EN 12464-1 also requires uniformity U0 ≥ 0.40-0.70 depending on task and UGR ≤ 19-25. A bright but patchy or glaring installation fails the standard.
- Convert to luminaires: total lumens per zone = area (m²) × target lux ÷ utilization factor (0.6-0.8). Then divide by the luminaire's delivered lumens to get the count, and check mounting height: high-bay (>5 m) vs low-bay (3-5 m).
- Measure with a lux meter after installation at the work plane (desk height 0.75 m, warehouse floor), average several points, and add/adjust luminaires where a zone is below target. Commercial LED suppliers such as OKELI (16+ years OEM/ODM, CE/CB/RoHS/SAA certified commercial lines) can pre-run the lux calculation for your layout before you order — always ask for a photometric layout rather than guessing counts.
2. Core Parameter Comparison: Lux by Zone (EN 12464-1 Reference)
| Zone / task | Maintained lux | Max UGR | Min Ra |
|---|---|---|---|
| Office - writing, typing, screen work | 500 lx | 19 | 80 |
| Meeting / conference room | 300-500 lx | 19 | 80 |
| Technical drawing / CAD | 750 lx | 16 | 80 |
| Reception | 300 lx | 22 | 80 |
| Corridors / circulation | 100 lx | 28 | 40 |
| Warehouse storage - occasional access | 100 lx | 22 | 60 |
| Warehouse storage - frequent access | 200 lx | 22 | 60 |
| Packing / sorting station | 200-300 lx | 22 | 60-80 |
| General assembly / manufacturing | 300 lx | 22-25 | 60-80 |
| Fine assembly / inspection | 500-750 lx | 19 | 80-90 |
3. Frequently Asked Questions
Question 1: Is 500 lux at the floor or at desk height?
At the work plane — 0.75 m for desks, floor level for warehouse aisles. Lux at floor level in an office will be lower than at 0.75 m, so always state the measurement plane when checking compliance.
Question 2: How many lumens do I need per square meter for a warehouse?
For a 100-200 lx warehouse zone, roughly 150-300 initial lumens per m² (before maintenance factor). At 200 lx maintained, a 2000 lm high-bay covers about 7-10 m² of floor area depending on mounting height and beam angle — run the lux calculation rather than using watts.
Question 3: What if my budget only allows 100 lx in the packing area?
100 lx in a 200-300 lx task zone risks picking errors, rework and safety issues. Instead of lowering the whole area, light task stations locally (task lighting over benches) while keeping aisles at 100-150 lx — same budget, compliant result.
Question 4: Do LED retrofits of old fixtures need to meet the same lux?
Yes — the standard applies to the installation, not the fixture. When replacing metal halide or fluorescent, keep the same maintained-lux target (see our metal-halide-to-LED guide for wattage conversion) and re-measure after retrofit, because LED optics change the light distribution.
Data Sources
Silamp — EN 12464-1 industrial lighting lux by zone: https://www.silamp.fr/pages/eclairage-industriel-nf-en-12464-1-combien-de-lux-pour-quelle-zone
LED World — EN 12464-1 indoor workplace lighting tables: https://ledworld.com/academy/en-12464-indoor-workplace-lighting
SmartQHSE — Lux level calculator and workplace guide: https://www.smartqhse.com/lux-level-calculator
Kingseng — Warehouse lighting lux requirements (2026): https://ksimpexp.com/warehouse-lighting-lux-requirements/
OKELI Lighting — commercial lighting manufacturer: https://www.okelilamp.com/professional-commercial-lighting-supplier/
Last updated: 2026-09-17
