To improve warehouse efficiency, first identify where work slows down or errors occur—from receiving through shipping—then address the root cause before buying software or automation. A practical improvement plan balances throughput, inventory accuracy, space and labor use, customer service, and safe execution; no single layout, system, or technology is right for every facility.
How can you measure warehouse efficiency?
Start by mapping the flow of goods and information through receiving, put-away, storage, picking, packing, and shipping. Accurate records of inventory quantities and locations help those activities work together. The Association for Supply Chain Management (ASCM) describes a warehouse management system (WMS) as software that manages and optimizes warehouse workflows and storage (ASCM’s WMS overview).
Establish a baseline using the same definitions and measurement periods you will use after changes. Useful facility-level indicators include:
- Inventory and order accuracy
- Dock-to-stock time and throughput by process
- Picking travel, labor demand, and rework
- Space use, congestion, and replenishment frequency
- Safety incidents and ergonomic concerns
These are practical measures for diagnosing a facility, not benchmarks prescribed by the sources cited here. Break results down by process, shift, product group, or order type where possible. A single total can hide the constraint—for example, faster picking may not increase shipments if packing or dispatch is the bottleneck. ASCM recommends assessing current operations and identifying root causes of poor performance before selecting improvements (WMS guidance; warehouse operations guidance).
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Which warehouse practices should you improve first?
Standardize work and organize the floor
Use 5S as a workplace-organization approach: make tools, materials, locations, and handoffs easy to identify and keep in order. Clarify how work moves between receiving, storage, picking, packing, and shipping so that employees do not have to guess where an item or task belongs. Include security and sustainability in operational reviews alongside productivity, as ASCM recommends (ASCM warehouse operations guidance).
Before changing storage, traffic routes, or work areas, check applicable requirements and facility-specific controls. A change that reduces walking can still create blocked aisles, unsafe crossings, or poor access.
Review slotting and travel
Slotting is the assignment of products to storage and pick locations. Where the order profile supports it, placing faster-moving items nearer shipping can reduce travel. Revisit assignments when seasonality, promotions, or demand spikes change what employees pick most often. Consider item size and weight, replenishment frequency, access, and congestion together rather than optimizing for distance alone.
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Dense storage can have ergonomic trade-offs. OSHA’s grocery-storage eTool notes that multiple slotting and dense placement can increase bending and elevated reaching, and identifies aisle congestion as a hazard. That guidance is specifically relevant to grocery storage tasks, not a complete ergonomic standard for every warehouse (OSHA grocery warehousing: storage).
How can you reduce picking time and errors?
First determine whether the problem is unnecessary travel, poor location records, replenishment delays, unclear work instructions, or a downstream handoff. Then test a focused change against the baseline. For example, review whether frequently ordered products are in accessible locations, whether replenishment keeps pick faces stocked, and whether employees can confirm the correct item and quantity at each step.
Clear location labels and consistent procedures can make errors easier to prevent and investigate. Barcode scanning or RFID labeling may help connect physical goods to digital inventory records, but the tools must fit the facility’s workflow and existing systems. ASCM describes barcode and RFID tools as options that may integrate with WMS and ERP or other software (ASCM WMS overview).
After a change, review accuracy, travel, replenishment, congestion, and safety together. A faster pick is not a genuine improvement if it increases mis-picks, strains workers, or shifts delays to packing.
Is a warehouse management system worth it?
A WMS can help record where goods are stored, guide picking, and coordinate work from receipt through dispatch. Whether it is worthwhile depends on the facility’s demonstrated needs: the workflows to control, the level of location and quantity accuracy required, the systems already in place, and the effort needed to implement and maintain the software. The cited sources do not establish a universal return on investment.
Before choosing a WMS, document the workflows and reporting needs it must support, how it will connect with existing ERP, scanning, or transport systems, and what training and implementation support employees will need. ASCM recommends selecting a system based on operations, integrating it with existing software, training employees, and monitoring and upgrading the system over time (ASCM WMS guidance).
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Compare options using facility-specific criteria rather than a generic ranking:
- Workflow coverage and inventory/location accuracy requirements
- Compatibility with existing software and equipment
- Order profile, peak variability, space, and travel constraints
- Implementation, staff training, maintenance, and support
- Safety and ergonomics, scalability, and total cost over the expected operating period
When should you consider warehouse automation?
Consider automation only after identifying a specific constraint it is meant to address. ASCM’s warehouse resilience guidance describes automated storage and retrieval systems, goods-to-person systems, conveyors, guided vehicles, mobile robots, and sortation as possible approaches. Their suitability depends on the facility’s space, handling needs, order flow, and operating conditions; the cited sources do not establish a generally reliable payback period or show that every warehouse benefits.
Evaluate the use case, order profile and peak variability, integration requirements, maintenance, labor effects, and worker training before committing. OSHA cautions that conveyors, labelers, pallet wrappers, and industrial robots can introduce hazards if poorly integrated, and that workers need awareness of robot hazards. OSHA also notes that efficiency tools can bring new hazards (OSHA warehousing hazards; OSHA robotics safety). Build hazard controls and safe operating procedures into planning rather than treating them as a post-installation task.
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Why should safety be part of the efficiency plan?
Safety affects whether a process can operate reliably, not just whether it meets a separate compliance target. Review powered equipment, hazardous energy, electrical systems, automation, worker access, and ergonomic strain when changing layouts or workflows. OSHA’s guidance covers these hazard areas (warehousing hazards).
For context, the U.S. Bureau of Labor Statistics reported a 2024 total recordable injury and illness rate of 4.8 cases per 100 full-time workers for warehousing and storage (NAICS 493), compared with 2.3 for private industry overall. These are U.S. industry-wide rates, not predictions for an individual employer (BLS nonfatal injury and illness tables). The BLS series notes a classification break beginning in 2023, so comparisons across that boundary should be made cautiously.
How should you review and sustain improvements?
Train employees on changed procedures and systems, then compare results with the baseline using the same definitions and measurement periods. Look beyond the target metric for unintended effects: inventory errors, congestion, ergonomic strain, rework, or safety events. If performance does not improve, revisit the root cause rather than adding another tool by default.
ASCM recommends training during WMS integration and ongoing monitoring and upgrades. It also describes a self-paced Supply Chain Warehousing Certificate developed with Prologis; check ASCM’s current course details and terms directly to decide whether it suits your team (ASCM Supply Chain Warehousing Certificate).
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