Shed Lighting Planner Calculator Australia

Estimate fitting count, nominal spacing, beam diameter, maintained lux and load for one private shed zone.

Shed zone

Shed size, fitting output and mounting geometry

Enter one shed lighting zone with the fitting output, mounting height, beam angle and maintained-light assumptions. The result gives count, spacing, beam and load for early planning.

Measured length of the controlled zone.

Measured width of the controlled zone.

Maintained lux target for the task or workplane.

Published output for one luminaire.

Input power for one luminaire.

Height from floor to fitting.

Height of the assessed surface.

Published beam angle for the fitting.

Allowance for light reaching the workplane.

Allowance for ageing, dirt and lumen depreciation.

Formula

count = ceiling((area x target lux) / (UF x MF x lumens per fitting)); nominal spacing = sqrt(area / count); connected load = count x watts per fitting

The shed zone uses the lumen method for count, then checks beam diameter and nominal spacing from mounting geometry. Connected load remains a lighting load note only.

VariableTechnical meaningDesign check
Shed length and widthMeasured private shed zone.Split storage, bench and work areas if they differ.
Target luxPlanning illuminance target for the named shed task.Keep as a user-entered estimate.
Fixture lumens and wattsOutput and load for one exact luminaire.Do not size light from watts alone.
Mounting and workplane heightEffective height for beam spread.Benches and platforms shorten the throw.
UF and MFDelivery and maintained-output assumptions.Dusty sheds usually need conservative factors.

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