Corridor Lighting Calculator

Design lighting for hallways, corridors, and egress paths. Calculates fixture count, spacing, and compliance with IESNA and NFPA standards for different occupancy types.

Corridor Dimensions

Length 120 ft

Width 6 ft

Ceiling Height 9 ft

Occupancy Type

Fixture Type

Mounting: Recessed / Surface

Controls

Results

Corridor area—

Target illuminance—

Fixtures required—

Fixture spacing—

Max spacing (1.5×MH)—

Total wattage—

Power density (LPD)—

ASHRAE 90.1 corridor—

Energy savings (controls)—

—

fixtures

Count

—

ft OC

Spacing

—

W/ft²

Power density

—

fc avg

Illuminance

Lighting corridors and egress paths

Corridors need even, comfortable light that guides people through without harsh bright-to-dark transitions. Target levels are modest — often 100–200 lux for general corridors, higher where they double as work or waiting areas — but uniformity and the transition to adjacent spaces matter most for comfort and safety. Space fixtures so the light overlaps evenly, avoid glare in the line of sight, and don’t let a corridor be much darker than the rooms opening off it, since the eye struggles with abrupt changes. Egress and exit paths also carry code-required minimum levels and emergency-lighting obligations, so check the applicable building and life-safety codes.