Order Picking & Packing

Order picking and packing are the backbone of warehouse fulfillment. These two processes account for more than half of all warehouse labor costs, and the accuracy of your work directly determines whether customers receive the right products on time. A single mispick can cost a company $20 to $60 in return shipping, replacement product, customer service time, and lost trust. This guide prepares you with the real-world skills, procedures, and efficiency techniques used in modern distribution centers and fulfillment operations.

Understanding the Order Fulfillment Cycle

Before diving into picking and packing, understand where these tasks fit in the overall flow:

1. Order received - A customer places an order online, by phone, or through a B2B system
2. Order released to warehouse - The WMS (Warehouse Management System) converts the order into pick tasks
3. Picking - Associates retrieve items from storage locations
4. Packing - Associates verify, protect, and box the items for shipment
5. Shipping - Packages are labeled, manifested, and staged for carrier pickup
6. Delivery - The carrier delivers to the end customer

Your role in picking and packing is steps 3 and 4. Errors at these stages cascade forward - a wrong item picked means a wrong item shipped, a return initiated, and a customer who may not come back.

Pick Methods and When They Are Used

Different warehouses use different picking strategies. The method your facility uses depends on order volume, product mix, warehouse layout, and staffing levels.

Discrete (Single Order) Picking

One picker handles one order at a time from start to finish. You receive a pick list, walk the warehouse, collect all items for that order, and bring them to the pack station.

When it works best:

• Low to moderate order volume (under 200 orders per shift)
• Large or complex orders with many line items
• New associates who are still learning the warehouse layout
• Operations where order accuracy is prioritized over speed

Typical pick rate: 60-80 lines per hour for an experienced picker

Batch Picking

One picker collects items for multiple orders (typically 4-12) in a single trip through the warehouse. Items are placed into a multi-compartment cart or tote, then sorted into individual orders at the pack station.

When it works best:

• High volume of small orders (1-5 items each)
• E-commerce fulfillment centers
• Operations where travel time is a significant percentage of total pick time

Typical pick rate: 100-150 lines per hour

Key skill: Keep orders separated in your cart. Use color-coded totes or numbered compartments. Mixing items between orders defeats the purpose of batch picking and creates errors.

Zone Picking

The warehouse is divided into zones, and each picker works only in their assigned zone. Orders travel from zone to zone (either physically on a conveyor or digitally through the WMS) until all items are collected.

When it works best:

• Large warehouses with diverse product types
• High-volume operations with many pickers working simultaneously
• Warehouses where certain zones require special skills or equipment (such as cold storage or hazmat areas)

Typical pick rate: 120-180 lines per hour per zone

Key skill: Complete your zone picks quickly and accurately so you do not become a bottleneck for other zones.

Wave Picking

Orders are grouped into timed waves based on shipping priority, carrier cutoff times, or destination. The WMS releases each wave to the floor, and pickers work the wave using discrete, batch, or zone methods.

When it works best:

• Operations with multiple carrier pickups throughout the day
• Warehouses that need to balance workload across shifts
• Facilities where certain orders have priority shipping

Pick-to-Light and Voice Picking

Modern warehouses use technology to guide pickers:

• Pick-to-light - LED displays at each shelf location show the quantity to pick. You press a button to confirm the pick. Extremely fast for high-density areas.
• Voice picking - You wear a headset and the system tells you the location and quantity verbally. You confirm by speaking back. Keeps your hands free for picking.
• RF scanning - A handheld scanner directs you to locations and verifies each pick by scanning the item barcode.

Regardless of the technology, the principles of accuracy are the same.

Step-by-Step Picking Procedure

Follow this process for every pick task:

1. Receive Your Assignment

Log into the WMS on your RF scanner, pick-to-voice headset, or workstation. The system assigns you a pick task, wave, or batch.

2. Gather Equipment

• Clean cart or tote
• RF scanner (charged) or headset
• Any required PPE for the zones you will enter (such as cold-storage gear)

3. Travel to the First Location

Follow the pick path the WMS provides. The system routes you through the warehouse in the most efficient sequence to minimize backtracking.

4. Verify the Location

Before picking, confirm you are at the correct location:

• Scan the location barcode on the rack, shelf, or bin
• Read the location code (such as A-04-B-03, meaning Aisle A, Row 4, Bay B, Level 3)
• If the scanner rejects the location, do not override it. You are in the wrong spot.

5. Pick the Item

• Read the full SKU on your pick task and match it to the item label. Do not rely on product appearance - many items look similar.
• Check the quantity requested. Count out the exact number.
• Scan the item barcode to confirm the pick. The system will beep or display a confirmation.
• Place items carefully in your tote or cart. Do not toss, drop, or stack heavy items on fragile ones.

6. Handle Exceptions

If something is wrong at the location:

• Item not found - Check adjacent locations. If still missing, flag the task as a short pick in the WMS. Do not substitute a different item.
• Quantity short - Pick what is available and flag the shortage. The WMS will create a backorder or assign the remaining quantity from another location.
• Damaged item - Do not pick damaged product. Flag it and report to your supervisor.
• Wrong item in location - Report the discrepancy. A wrong item in a bin means inventory is off, and someone else will pick the wrong thing if it is not corrected.

7. Complete the Pick

After all items for the order or batch are collected, the WMS directs you to the pack station or staging area.

Accuracy: The Non-Negotiable Standard

Industry standard for order accuracy is 99.5% or higher. Top-performing warehouses target 99.9%. Here is how to achieve it:

The Four-Point Verification:

1. Right location - scan or verify the bin/shelf address
2. Right item - match the SKU, not just the product appearance
3. Right quantity - count every unit, recount anything over five
4. Right condition - no damage, no expired product, no opened packaging

Common Causes of Mispicks:

• Picking from the wrong location because you skipped the location scan
• Grabbing the wrong size, color, or variant of a similar-looking product
• Miscounting quantities, especially loose items
• Picking from a location where someone previously put away the wrong item

When You Find an Error:

• If you catch your own mistake, correct it immediately
• If you find someone else's error (wrong product in a bin), report it to inventory control
• Never cover up an error by adjusting quantities or swapping items

Packing Station Setup and Workflow

A well-organized pack station keeps you fast and accurate. Arrange your station before starting:

• Packing materials - Boxes (assorted sizes), bubble wrap, air pillows, packing paper, poly mailers, tape, and tape gun within arm's reach
• Scale - For weighing packages to verify shipping charges
• Label printer - Connected and loaded with labels
• Packing slips - Printed or available from the system
• Quality check area - Space to spread out order items for verification

Step-by-Step Packing Procedure

1. Receive the Order at the Pack Station

The picked items arrive in a tote or on a cart. Scan the order barcode to pull up the packing slip on screen.

2. Verify Every Item

Spread the items out and match each one against the packing slip:

• Scan each item to confirm the SKU
• Verify the quantity of each line item
• Check for damage - look for dents, tears, stains, or broken seals
• Confirm variants - correct size, color, flavor, or model

If anything is wrong, flag the order. Do not pack and ship an incorrect order hoping the customer will not notice.

3. Select the Right Box or Mailer

Choose the smallest package that fits the items with 2-3 inches of space on all sides for cushioning:

• Corrugated boxes - For hard goods, fragile items, and multi-item orders
• Poly mailers - For soft, non-fragile items like clothing and accessories
• Padded envelopes - For small, semi-fragile items like phone cases or books
• Custom packaging - Some products ship in branded or fitted packaging

Oversized boxes waste packing materials, increase shipping costs (dimensional weight), and allow items to shift in transit.

4. Protect the Contents

• Fragile items - Wrap individually in bubble wrap. Each item should have at least two layers of protection. Keep fragile items away from box walls.
• Multiple items - Separate items so they do not rub or bang against each other
• Liquids - Bag liquid items separately in case of leaks. Place them upright with the cap area facing up.
• Heavy items - Place heavy items at the bottom of the box, lighter items on top

5. Fill Void Space

The "shake test" is your guide: gently shake the sealed box. If contents shift or rattle, add more fill.

• Air pillows - Fast, lightweight, and effective
• Crumpled packing paper - Versatile, recyclable, and inexpensive
• Bubble wrap - Best for lining the inside of boxes containing fragile items
• Foam inserts - For high-value or precision items

6. Include Documentation

• Place the packing slip inside the box where the customer can find it
• Add any promotional inserts, return labels, or care instructions as required
• For international shipments, include the commercial invoice and any customs forms

7. Seal and Label

• Apply packing tape across the center seam and both edge seams (H-tape pattern for heavy boxes)
• Print and apply the shipping label flat and centered on the largest face of the box
• Ensure the barcode is scannable - no wrinkles, no tape over the barcode, no overlapping labels
• Apply fragile or this side up stickers when appropriate

8. Stage for Shipping

Place the completed package in the designated staging area:

• Organize by carrier (UPS, FedEx, USPS, LTL)
• Separate by service level (ground, express, next-day)
• Keep the label visible for the shipping team to scan during manifesting

Pick Rate Targets and How to Improve

Pick rates are measured in lines per hour (LPH) or units per hour (UPH). Here are typical benchmarks:

Method	New Associate	Experienced	Top Performer
Discrete	40-60 LPH	70-90 LPH	100+ LPH
Batch	60-90 LPH	100-140 LPH	160+ LPH
Zone	80-120 LPH	130-170 LPH	200+ LPH

How to pick faster without sacrificing accuracy:

• Learn the warehouse layout - Know which aisles hold which product categories. The less time you spend searching, the more time you spend picking.
• Trust the pick path - Do not second-guess the WMS routing. It calculates the optimal sequence.
• Handle items once - Pick the item, place it in the tote, move on. Do not rearrange your tote mid-trip.
• Walk with purpose - Move briskly between locations but do not run. Running causes accidents and does not improve rates as much as you think.
• Pre-read your next pick - While walking, glance at the next location on your scanner so you know where you are headed.
• Minimize scanner fumbling - Hold the scanner in a consistent position. Learn to scan without looking at the trigger.

Quality Control Checkpoints

Many warehouses have a QC step where a second person verifies orders before they ship. Even if your facility does not have formal QC, build these checks into your own process:

• Random audit - Supervisors or QC staff will periodically open and check completed packages. Expect this and welcome it.
• Self-audit - After packing, take three seconds to glance at the packing slip and mentally confirm you packed every line.
• Weight check - Some systems compare the actual package weight to the expected weight. A significant difference triggers a recheck.
• Photo documentation - Some facilities photograph high-value orders before sealing as proof of correct packing.

Common Scenarios and How to Handle Them

Scenario: The item at the pick location does not match the SKU on your scanner.
Do not pick it. Scan the item to see what it actually is. Report the discrepancy to inventory control. Move on to your next pick.

Scenario: You are one unit short on a multi-unit pick.
Pick what is available. Flag the short in the WMS. The system will either create a backorder, direct you to an alternate location, or alert a supervisor.

Scenario: A customer order has a special instruction ("gift wrap," "include sample," etc.).
Follow the instruction exactly. If you are unsure how to fulfill it, ask your supervisor before shipping. Ignoring special instructions is a guaranteed customer complaint.

Scenario: You accidentally damage a product while picking.
Do not put it back on the shelf. Report the damage. Place the item in the damaged goods area. This keeps damaged product out of future orders.

Scenario: The packing station runs out of a box size you need.
Do not cram items into a smaller box or use an oversized box without cushioning. Alert your supervisor or supply runner. Take another order while waiting.

Safety in Picking and Packing

• Lifting - Bend at the knees, keep your back straight, hold items close to your body. Ask for help with items over 50 pounds.
• Repetitive motion - Picking and packing involve repetitive bending, reaching, and scanning. Stretch at the beginning of your shift and during breaks. Rotate tasks if possible.
• Cart and tote handling - Do not overload carts. An overloaded cart is hard to steer and tips over easily.
• Sharp objects - Use box cutters with retractable blades. Cut away from your body. Replace dull blades.
• Slip hazards - Watch for packing materials, shrink wrap, and spilled product on the floor. Clean up immediately.

KPIs You Will Be Measured On

• Pick accuracy - Number of correct picks divided by total picks. Target: 99.5%+
• Pick rate - Lines or units per hour. Targets vary by method and warehouse.
• Pack rate - Packages completed per hour. Typical: 20-40 packages per hour depending on order complexity.
• Damage rate - Percentage of shipments with damage claims. Target: under 0.5%.
• On-time completion - Percentage of orders picked and packed before the shipping cutoff. Target: 99%+

Tips from Experienced Warehouse Associates

• "Accuracy first, speed second. Speed comes naturally as you learn the layout. Errors follow you."
• "Keep your work area clean. A cluttered pack station leads to mislabeled packages and lost items."
• "When in doubt, ask. A 30-second question beats a $50 return."
• "Wear comfortable shoes with good support. You will walk 8-12 miles on a busy shift."
• "Stay hydrated. Keep a water bottle at your station. Dehydration slows you down and causes mistakes."
• "Learn the top 50 SKUs in your zone by sight. You will handle them every day and recognizing them instantly saves time."