Plan warehouse task lighting around two things: what each fixed workstation does, and where the worker stands or faces while doing it. Plan circulation lighting around route patterns instead, because those routes can move when racks, storage, staging, or material flow change. Keep both on the same plan, but record them as separate assumptions.
That record feeds the lighting review. It does not prove that coverage is adequate. A project-specific photometric review decides coverage, and a travel path that is also an exit route needs its own check of the rules that apply.
Separate the Planning Anchor for Workstations and Travel Routes
A workstation stays a stable planning condition only while its task and working position stay the same. A travel route works differently. Its shape depends on the layout around it, so one floor-plan snapshot can't show where it may run next.
| Planning area | Planning anchor | Review trigger |
|---|---|---|
| Fixed workstation | Task and working position | Task or position changes |
| Changing travel route | Current and plausible paths | Layout change alters a mapped path |
In practice, this gives you two layers on one drawing. The workstation layer holds steady until someone changes the work. The route layer holds a set of scenarios, each tied to a layout decision. Both layers go to the same review later, because the reviewer needs to see where stations and routes sit next to each other in every scenario.
Record What Must Stay Stable at Each Workstation
A useful workstation record describes the task, not just the station's footprint. Write down these items for every fixed station:
- Task performed: name the actual work, such as packing, labeling, scanning, or inspecting. Two stations with the same footprint can serve very different tasks.
- Station location: mark the station's position on the plan, along with nearby racks, columns, or equipment.
- Working position and orientation: note whether the worker stands or sits, and which way they face while working.
- Task point and plane: Record where the work actually takes place and in what plane (horizontal or vertical), such as a bench top, a shelf face, or a label on the side of a carton.
- Changes that make the record stale: a new task, a rotated bench, or a worker who now faces another direction. Any of these can outdate the assumption even when the station hasn't moved.
Supplemental adjustable lighting can be evaluated where specific tasks require illumination beyond the general permanent layout, especially to keep glare down. If you think a station might need it, list that as its own review item instead of assuming the overhead layout covers it. When your stations fall into receiving, picking, packing, and staging, grouping them into warehouse task zones keeps each station record tied to the zone it serves.
Mark Current and Plausible Travel Routes
Show the route you have today and the routes you can reasonably expect. Then tie each alternative to the layout change that would create it. Work through the plan in this order:
- Mark the current route. Draw today's main forklift, pallet jack, and walking paths as solid lines labeled "current."
- Add each plausible variant as its own line. Name the change behind it, such as "Variant A: new rack row on the east wall" or "Variant B: staging lane moved to Dock 3." Leave off variants that nobody is planning or considering.
- Label what moved. Circle new obstructions, rack ends, shifted route edges, and any path segment that is also a designated exit route.
- Flag the changed areas for technical review. Each circled area is an open question about coverage, not a known lighting result.
The drawing tells the reviewer where conditions change. It does not tell anyone how much light reaches those spots. Rack faces and aisle ends deserve flags because warehouse aisle shadow patterns can leave them darker than the open floor, even under bright fixtures. A new rack row can turn an open path into an aisle with fresh shadow edges, so its variant line should show where those edges fall.
Review Task and Route Scenarios Together
The combined plan shows a reviewer what the lighting has to serve. Only project-specific photometric review can show whether a proposed layout actually serves it. Give the reviewer the current layout, each named route variant, and the station records together, then ask for every relevant scenario to be checked, not only today's floor plan.
This matters because a fixture layout that suits the current routes may be judged against a different set of obstructions once a variant is built. The overlay itself is not a coverage test. Don't read a clear-looking drawing as a passing result, and don't treat a flagged area as a failure until it has been reviewed.
Fixture photometric data is part of that review. If you want to follow the fixture side of the conversation, it helps to read an IES photometric file before comparing options. If you'd like us involved in the layout, include your annotated plan with a lighting design request so the station and route assumptions travel with it. Once the review points to a fixture type, you can compare candidates in our warehouse lighting collection.
Keep Exit-Route Requirements Separate From Ordinary Circulation
A travel path that serves as a designated exit route carries separate obligations, so mark it separately from ordinary circulation. Under OSHA exit-route lighting requirements, each designated exit route must be adequately lighted so an employee with normal vision can see along it. That rule covers exit routes only and does not set a lighting level for every aisle or forklift lane.
The same rule addresses repairs and alterations, which is where a layout change can become a safety stop. In workplaces covered by the rule, employees must not occupy the workplace during repairs or alterations unless the required exit routes stay available and existing fire protections are maintained, or until alternate fire protection with an equivalent level of safety is in place. Before a rack move or relighting project starts, confirm how each designated exit route will stay usable during the work.
State and local requirements, and the project's own documents, can add conditions beyond the federal rule. Confirm which requirements apply at your location with the authority having jurisdiction or your project professional. A planning overlay is not a compliance determination.
Set a Trigger for Reopening the Lighting Review
Keep a dated baseline plan that records the station tasks, working positions, and route lines the last review used. Before any layout change, compare the proposal against that baseline. Reopen the lighting review when a workstation's task or working position changes, or when a rack, storage, staging, or material-flow change alters a mapped route.
Here is how that looks in practice. An operations manager plans a new rack row that pushes forklift traffic from an open lane into a narrower aisle. The proposed route no longer matches the baseline line, so the manager sends that variant for review before the racks go in. A layout change that leaves every recorded task, position, and route line unchanged doesn't trip the trigger.
This is a change-control habit, not a code threshold. A tripped trigger means the old assumptions no longer describe the space. It does not, on its own, mean the existing lighting is inadequate.
FAQs
What belongs on a warehouse plan before a lighting review?
Mark each fixed station with its task, working position, and the plane where the work happens. Then draw current and plausible travel routes as separate labeled lines, and mark designated exit routes. Add the date so later changes can be compared against it.
Does a workstation need another review if the task changes but the station stays put?
Yes, treat it as a changed assumption. The original review was based on a specific task and working position. A new task or a new worker orientation can shift where and in which plane light is needed, even at the same spot on the floor.
Can one lighting layout serve both workstations and travel areas?
One installed layout can serve both, but only if the review checks both needs. Fixed stations are checked against stable task inputs, while routes are checked against each layout scenario you expect. For a smaller building where one area handles several jobs, our guide to lighting a small mixed-task warehouse covers mapping zones and task planes within a shared space.
How can I tell whether a travel path is also an exit route?
Check the facility's designated exit routes in its emergency and egress documents, and ask whoever maintains them. Exit-route status depends on that designation and on the rules that apply at your location. The fact that a path looks like a main aisle doesn't settle it.
