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Quick Reference: Recommended Footcandle (fc) Levels by Application
Footcandle (fc) is a unit of illuminance that measures the amount of light reaching a surface. Use the following guidelines to determine appropriate lighting levels for common commercial and industrial spaces.
Warehouse & Distribution Centers
| Application | Recommended Illuminance |
|---|---|
| Warehouse Storage (Low Pick Rate) | 10 fc |
| Warehouse Storage (High Pick Rate / Picking Aisles) | 20–30 fc |
Tip: Higher footcandle levels improve visibility, picking accuracy, and worker safety in active storage areas.
Manufacturing Facilities
| Application | Recommended Illuminance |
|---|---|
| General Assembly | 30 fc |
| Fine Assembly / Inspection | 50–100 fc |
Tip: Precision tasks such as quality control and detailed assembly require significantly higher light levels to reduce eye strain and improve accuracy.
Automotive Service & Repair
| Application | Recommended Illuminance |
|---|---|
| Auto Repair Shops & Garages | 50 fc |
Tip: Adequate lighting helps technicians identify defects, perform repairs safely, and improve overall productivity.
Sports & Recreation Facilities
| Application | Recommended Illuminance |
|---|---|
| Gymnasium (Recreational Use) | 30 fc |
| Gymnasium (Competition Use) | 50–75 fc |
Tip: Competitive sports generally require higher illumination levels for player visibility, spectator experience, and potential video recording.
Parking & Outdoor Areas
| Application | Recommended Illuminance |
|---|---|
| Parking Lot (Open Lot, Basic Security) | 1–2 fc |
| Parking Lot (Commercial / Retail) | 2–5 fc |
Tip: Commercial parking areas often use higher light levels to enhance customer safety, security, and wayfinding.
Shipping & Receiving
| Application | Recommended Illuminance |
|---|---|
| Loading Docks | 20–30 fc |
Tip: Proper dock lighting improves visibility during loading and unloading operations, reducing accidents and handling errors.
At-a-Glance Summary
| Space Type | Target Footcandles |
|---|---|
| Low-Activity Warehouse Storage | 10 fc |
| Active Warehouse Picking Areas | 20–30 fc |
| General Manufacturing | 30 fc |
| Fine Manufacturing / Inspection | 50–100 fc |
| Auto Repair Facilities | 50 fc |
| Recreational Gyms | 30 fc |
| Competition Gyms | 50–75 fc |
| Basic Parking Lots | 1–2 fc |
| Commercial Parking Lots | 2–5 fc |
| Loading Docks | 20–30 fc |
Source: IES Lighting Handbook, 10th Edition (Illuminating Engineering Society).
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