Piece and each picking is the warehouse process of selecting individual saleable units from storage locations to fill customer or store orders. It matters because many modern orders contain small quantities, mixed products, and short delivery promises. Good piece picking reduces walking, search time, errors, and damage while keeping labor and automation productive.
It connects physical movement in the warehouse with digital order data from a warehouse management system.
Key Facts
- Pick rate = units picked / labor hour.
- Order accuracy = correct orders / total orders x 100%.
- Travel time often takes the largest share of manual piece picking time.
- Batch picking groups multiple orders together to reduce repeated travel.
- Zone picking assigns workers or robots to specific warehouse areas to control congestion.
- Replenishment must keep forward pick bins stocked so pickers do not stop or pick from reserve storage.
Vocabulary
- Piece picking
- Piece picking is the selection of individual units, such as one bottle, one book, or one shirt, rather than full cases or pallets.
- Pick face
- A pick face is the front storage location where a worker or robot can access items for picking.
- Warehouse management system
- A warehouse management system is software that directs storage, picking, replenishment, inventory counts, and order tracking.
- Batch picking
- Batch picking is a method where one trip collects items for several orders at the same time.
- Replenishment
- Replenishment is the movement of goods from reserve storage to active pick locations before those locations run out.
Common Mistakes to Avoid
- Picking by memory instead of scanning the location and item is wrong because similar products and nearby bins can cause hidden errors.
- Measuring only units per hour is incomplete because a fast process with low order accuracy creates returns, rework, and customer complaints.
- Placing fastest-moving items far from the packing area is inefficient because it increases travel distance on the orders picked most often.
- Ignoring replenishment timing is a mistake because empty pick faces stop workers, disrupt batches, and may force unsafe or untracked picking from reserve stock.
Practice Questions
- 1 A picker selects 480 individual units in a 6 hour shift. What is the pick rate in units per labor hour?
- 2 A warehouse ships 1,200 orders in a day and 18 orders contain at least one picking error. What is the order accuracy percentage?
- 3 A company can choose single-order picking, batch picking, or zone picking for many small e-commerce orders with repeated popular items. Explain which method or combination you would recommend and why.