Pallet Flow Racking

Last updated: August 23, 2026

How Pallet Flow Racking Works

System Components

• Inclined lanes: Roller or wheel tracks with gentle slope
• Loading side (high end): Pallets enter from rear of system
• Picking face (low end): Pallets exit at front for retrieval
• Speed controllers: Brake mechanisms prevent excessive acceleration
• Pallet separators: Ensure single-pallet advancement
• End stops: Prevent pallets from rolling off picking face

Operation Sequence

1. Forklift loads pallet onto high end of lane
2. Gravity moves pallet down incline toward picking face
3. Speed controllers regulate descent speed
4. Pallet stops at picking position
5. Order picker removes pallet from low end
6. Next pallet automatically advances to picking face

FIFO Inventory Rotation

Automatic First-In, First-Out

Pallet flow systems enforce FIFO rotation by physical design. First pallet loaded is always first pallet picked, eliminating operator error and ensuring proper rotation.

• Perishable goods: Food, pharmaceuticals, and time-sensitive products
• Date-coded inventory: Lot tracking and expiration management
• Quality control: Prevents old inventory from getting buried
• Compliance: Regulatory requirements for product rotation

Density and Efficiency Advantages

Space Utilization

Pallet flow combines high-density storage with fast picking access. Eliminates picker travel into lanes while maintaining multiple pallets per SKU in depth.

• Deep lane storage: Multiple pallets per lane reduce floor space per pallet position
• Reduced aisle count: Fewer pick aisles than selective racking
• Vertical utilization: Multiple flow levels per bay
• Cube efficiency: High storage density for high-volume SKUs

Picking Speed

• No travel into lanes: All pallets present at pick face
• Automatic replenishment: Next pallet immediately available
• Faster cycle times: Reduced forklift movement versus drive-in systems
• Order fulfillment: High-throughput picking operations

Lane Configuration

Lane Depth Options

Flow lanes typically hold multiple pallets in depth. Deeper lanes increase density but require longer loading/unloading cycles.

• Shallow lanes: Faster replenishment for high-velocity SKUs
• Moderate depth: Balanced density and replenishment frequency
• Deep lanes: Maximum density for bulk storage with slower turnover

Roller vs Wheel Tracks

Roller lanes: Steel rollers provide smooth, consistent flow. Higher cost but better long-term durability.

Wheel tracks: Plastic or urethane wheels reduce noise and vibration. Lower cost but may require more frequent maintenance.

Best Applications

Ideal for Pallet Flow

• Perishable products: Food, beverages, pharmaceuticals requiring FIFO
• High-volume SKUs: Fast-moving products with many pallets per item
• Order picking operations: High-throughput distribution centers
• Cold storage: Maximize expensive refrigerated space
• Manufacturing supply: Component feeding to production lines

Poor Fit for Pallet Flow

• Diverse slow movers: Many SKUs with few pallets each
• Variable pallet sizes: Mixed dimensions don't flow consistently
• Unstable loads: Poorly wrapped or uneven pallets may tip on incline
• Low-volume operations: Cost and complexity not justified for slow throughput

System Requirements

Pallet Specifications

• Bottom deck: Full bottom boards required for roller engagement
• Pallet condition: Good repair, no broken or protruding boards
• Load stability: Secure wrapping to prevent shifting on incline
• Weight limits: Lane capacity based on pallet weight and lane depth

Maintenance Requirements

• Roller/wheel inspection: Check for damage, wear, and free rotation
• Speed controller function: Verify braking mechanisms operate properly
• Track alignment: Ensure straight lanes without binding
• Lubrication: Regular maintenance of moving parts
• Debris removal: Keep lanes clear of pallet fragments and wrapping

Pallet Flow vs Other Systems

Frequently Asked Questions