Pack Breaking vs Case Picking: Choosing The Right Fulfillment Method

Pack Breaking The warehouse process of opening or dividing larger packs into smaller pack sizes to meet demand.

Pack breaking and case picking are related but distinct fulfillment strategies. Both deal with moving product out of larger vendor packs, yet they serve different order profiles and have divergent labor, space, and systems requirements. Choosing between them—or combining both—depends on SKU mix, order granularity, throughput, and cost targets.

Key Operational Differences

Case picking moves full cases from inventory to orders without opening them; it suits B2B or store replenishment where orders match case quantities. Pack breaking physically opens cases and creates smaller sell units or mixed packs for consumer or e-commerce orders. Case picking minimizes touches and WMS transactions; pack breaking increases touches but enables single-unit and mixed-SKU fulfillment.

Impact On Labor, Space And Equipment

Case picking favors pallet flow lanes, fork trucks, and high-capacity pick faces; it consumes less labor minutes per unit shipped. Pack breaking requires dedicated workstations, labeling printers, scales, and often a QA station for counting and inspection. It also generates packaging waste and needs space for temporary staging of split quantities and repack materials.

Systems And Traceability Considerations

Case picking generally involves simple pick tickets and pallet-level scanning; pack breaking must record internal inventory splits and often carry lot or expiry information to the new pack. A WMS that supports case-splitting transactions, label templates, and lot-level traceability is essential when pack breaking products with regulatory or recall risk.

When To Use Each Method

• Use Case Picking: When orders are large or match case quantities—store replenishment, wholesale, or when minimizing touches matters most.
• Use Pack Breaking: When fulfilling e-commerce single-unit orders, creating retail-ready multipacks, or meeting retailer-specific inner-pack requirements.
• Use Both: Most mixed operations employ case picking for bulk replenishment and breakpack for direct-to-consumer orders.

Cost Comparison Example

Example: A distribution center ships 1,000 cases per day that break into 24,000 individual units. If 90% of downstream orders are case-level, case picking offers lower labor cost and less packaging waste. If 60% of downstream demand is single-unit e-commerce, keeping everything as case picks leads to repacking later or poor service—introducing pack breaking at the DC for the 60% will raise per-unit handling cost but reduce last‑mile time and parcel fees.

Layout And Flow Recommendations

• Segregate Areas: Put dedicated breakpack stations away from high-throughput case pick aisles to avoid congestion.
• Optimize Inventory Allocation: Maintain a small replenishment reserve of inner packs for frequent SKUs to avoid opening full cases for every order.
• Design For Waste Handling: Include compactors or recycling stations next to breakpack lines to manage cardboard and void fill efficiently.

Tips For Hybrid Operations

Use WMS rules to route orders: send full-case orders to case picking waves and single-unit or mixed orders to breakpack stations. Monitor KPIs separately—cases/hour for case picking and items/minute plus yield for pack breaking. Consider partial automation like case depalletizers or inline labelers to reduce manual touches on high-volume SKUs.

In short, the Pack Breaking process complements case picking when customer requirements diverge from vendor pack sizes. Applying the right method to each order type lowers total cost-to-serve and improves service consistency.