Mezzanine Floors, Open and Racking Areas

Mezzanine Floors, Open and Racking Areas

Mezzanine floors are a good way to utilise floor space and it is not uncommon to see multiple levels in modern warehouses. Mounting heights are significantly reduced so wider optics are required. The density of fittings is also likely to increase so mounting luminaires to self-contained pre-wired trunking can speed up installation time, whilst also allowing for flexibility should the layout of the space change.

For recommended lux levels please see CIBSE : SLL Lighting Guide 1 - The Industrial Environment (2012, updated 2018)

Illumination Levels

Application Minimum maintained mean illuminance (lux) Illuminance uniformity (minimum/average)
Goods storage where identification requires only limited perception of detail 100 0.40
Goods storage where identification requires perception of detail 150 0.40
Continuously occupied storage areas where identification requires only limited perception of detail 200 0.40
Continuously occupied storage areas where identification requires perception of detail 300 0.60
Automatic high bay rack stores: Gangway: unmanned 20 0.40
Automatic high bay rack stores: Gangway: manned 150 0.40
Automatic high bay rack stores: Gangway: Control station 150 0.60
Packing and despatch 300 0.60
Loading Bays 150 0.40
Storage rack face* 200 0.40

* Calculation to be made on the vertical surface, portable lighting may be used.

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