Order picking is widely reported to account for 50% to 55% of total warehouse operational costs. Identifying the right picking strategy can have a significant impact on the bottom line.

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Why is choosing an order picking strategy so important?

An integral process in warehouse management, the speed and accuracy of order picking is essential to achieving seamless workflow and higher level business objectives including productivity, customer satisfaction, and ultimately profitability. Uncertain labor and increasing warehouse operation costs prioritize effective resource management of people and processes. Inefficient order picking processes waste valuable time and resources, working against warehouse leaders’ strategies and making operational goals unattainable or expensive to achieve.

Order picking is widely reported to account for 50% to 55% of total warehouse operational costs. Consequently, identifying the right picking strategy can have a significant impact on the bottom line, with the potential to increase both warehouse productivity and profitability. Key performance indicators (KPIs) such as throughput, order accuracy, and order cycle time should be set and tracked, making adjustments as needed.

Goals of an effective picking process:
  • Reduce cycle time
  • Increased and sustained order accuracy
  • Minimal inventory damage/loss
  • Higher customer satisfaction
  • Maximize human productivity safely
  • Minimize non-value-added activities


Businesses can use a variety of order picking methods and types to create the best strategy to support an efficient, profitable operation. Certain methods may be more efficient than others depending on a number of warehouse operations factors:

  • Size of facility
  • Product type and quantity of SKUs
  • Order to Ship Service Level Agreements (SLAs)
  • Order Profile and Volume


Warehouse order picking strategies should be customized to fit your business’s unique fulfillment needs and goals with aims to increase throughput and reduce cycle time and costs. Evaluating the advantages and disadvantages of various picking methods and supporting technologies can help to determine the right method or combination of methods that provide the greatest benefit to your business.

Order Picking Methods

01  Zone Picking

Zone picking, or pick and pass picking, organizes the warehouse into several discrete zones, with dedicated order pickers assigned to work within a specific zone and only picking SKUs within that zone. Multiple zones, which may include both storage and picking zones, are created on the warehouse floor. Orders may pass through several zones for completion and consolidated for shipping if multiple SKUs throughout the warehouse are required.



02 — Discrete Picking

Also known as single order picking, discrete order picking is the most common and oldest picking method used in warehouses. Typically referring to a printed pick list, one worker compiles each piece of necessary inventory in the order, one line at a time. Once the order is complete it is packed and sent for shipping.



03 — Batch Picking

Batch picking, or multi-order picking, enables workers to pick multiple SKUs from multiple orders at the same time. The orders are grouped into small batches and the worker is given a pick list that includes items in a batch and picks one SKU at a time for a batch of multiple orders. Batch picking works best for companies with orders that have a small number of SKUs.



04 — Wave Picking

Wave picking allocates workers to a specific inventory or storage zone where picking is done at specific times during the day. Wave picking organizes and groups orders by common criteria, such as similar SKUs in similar zones in the warehouse and similar shipping deadlines. Orders are picked in a batch and released at certain times throughout the day in waves that align with shipping activity and timelines, so warehouse managers can better schedule resources aligned with shipping deadlines or shift productivity goals. Wave picking can be performed similar to discrete order picking or like batch picking, and works best for warehouses with a larger amount of SKUs and variable product sizes.



05 — Cluster Picking

In cluster picking the picker will simultaneously pick various SKUs to complete multiple orders, working with a cart that is loaded with a different tote or shipping container per order. Cluster picking works best for small or medium sized product as multiple orders are handled on one cart.



Technology To Support Order Picking Productivity

Optimizing order picking can have a significant impact on customer experience and profitability. An individual or a combination of order picking methods can be tailored and implemented in manual operations to streamline fulfillment. The efficiency and accuracy of these order picking methods can be enhanced with technology such as automated mobile robots (AMRs) that can work alongside people and across zones to boost productivity and worker satisfaction.

IAM Robotics’ powerful new person-to-goods solution combines proprietary software with mobile robots to dramatically increase operational efficiency and eliminate downtime in warehousing, distribution, and fulfillment centers. See how IAM Robotics is lighting and leading the way in a new era of order fulfillment.

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