Pallet flow racking system with gravity-fed rollers

Why Choose Pallet Flow Racking?

Pallet flow racking, also called pallet live storage, uses a gravity-inclined roller track to move pallets from the load end to the pick end automatically, achieving true first-in, first-out (FIFO) rotation without forklift repositioning. When a pallet is removed from the pick face, gravity moves all remaining pallets in the lane forward automatically, presenting the next pallet to the forklift. This eliminates the deep-lane travel required in drive-in rack systems and creates separate load and pick aisles that improve both safety and efficiency. Pallet flow is the preferred high-density system for any operation where product rotation matters. Food and beverage distributors, pharmaceutical warehouses, dairy and produce operations, and cold storage facilities all depend on FIFO rotation to manage expiration dates and maintain product quality. In these environments, pallet flow is not just a productivity tool. It is a product quality and compliance tool. Systems are configured in lanes from 2 to 20 or more pallets deep, with multiple lanes per tier and multiple tiers per bay. Rocky Mountain Warehouse Solutions designs pallet flow systems for facilities across the Mountain West, including freezer and cooler warehouses where high-density FIFO storage provides both operational efficiency and energy cost reduction. Every system includes a layout drawing, lane depth optimization based on your SKU profile and replenishment frequency, and a brake and speed controller specification to ensure pallets travel at a safe, controlled speed from the load end to the pick face.

  • True FIFO inventory rotation
  • Eliminates forklift travel in storage lanes
  • Higher density than selective racking
  • Separate load and pick aisles improve safety
  • Ideal for expiration-date-sensitive products
  • Gravity-powered: no electricity required
  • Depth from 2 to 20+ pallets
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Technical Details & Buying Guide

Pallet flow systems consist of a structural pallet rack frame, typically heavier gauge uprights and beams than standard selective rack to support the additional weight of the flow track hardware and deep pallet loads, and a gravity inclined roller lane at each level. The incline is typically 3/8 to 1/2 inch per foot of lane depth, providing enough gravity force to move loaded pallets at a controlled speed. Roller spacing is set based on pallet type and condition: closer spacing (every 4–6 inches) for damaged pallets or soft-bottom containers, or wider spacing (every 8–12 inches) for block pallets and standard GMA pallets.

Brake controllers are critical components in deep-lane pallet flow systems. Without braking, pallets on a long inclined lane would accelerate to dangerous speeds and impact the pallet stop at the pick face with damaging force. Lane brakes, typically spaced every 4–8 pallet positions, use a ratchet mechanism or weight-activated brake shoe to control pallet speed throughout the lane. Proper brake selection and placement is a key engineering task that ensures pallets arrive at the pick face at a safe, consistent speed regardless of pallet weight or lane depth.

Pallet compatibility is an important operational consideration. GMA pallets (48×40 inches), CHEP blue block pallets, and most standard wooden pallets work well in pallet flow systems. Plastic pallets, Euro pallets, and non-standard pallet sizes may require custom roller configurations or speed control adjustments. In freezer environments, ice formation on rollers and brake mechanisms requires stainless steel components and more frequent inspection to ensure the system functions reliably at sub-zero temperatures.

Pallet flow racking system with gravity-fed roller lanes
Forklift loading pallet into pallet flow system
Pallet flow rack lane with speed controller brakes

Industries We Serve

Food and beveragePharmaceuticalDistribution and logisticsCold storageE-commerce fulfillmentManufacturing

Common Use Cases

Perishable product rotation
High-velocity replenishment
Cross-docking operations
Cold storage maximization
Single-SKU deep-lane storage
FIFO pallet flow system in cold storage warehouse
Pallet flow racking in food distribution facility
High-density pallet flow system maximizing bay depth

Frequently Asked Questions

What is the difference between pallet flow and push-back racking?

Pallet flow is a FIFO system: pallets load from the rear and pick from the front, using gravity to advance the lane. Push-back is a LIFO system: pallets are pushed back by the next pallet loaded and retrieved from the same front face. Flow is preferred for date-sensitive products; push-back is ideal for large quantities of fewer SKUs where rotation is not critical.

Can pallet flow be used in a freezer warehouse?

Yes. Pallet flow is widely used in freezer and cooler warehouses because it maximizes storage density, reducing expensive refrigerated cubic footage, and allows FIFO rotation without forklifts traveling deep into frozen lanes. Freezer applications require stainless steel brake and roller components and more frequent maintenance inspection.

How many pallets deep can a pallet flow lane be?

Pallet flow lanes can be 2 to 20+ pallets deep. Practical lane depth depends on your pick frequency. Very deep lanes are efficient for high-volume single-SKU products that are replenished and depleted frequently, but less efficient for slow-moving SKUs where the lane may only turn over once a week.

What is a lane brake on a pallet flow system?

A lane brake is a mechanical device that controls pallet speed as it travels down the inclined lane. Without braking, heavy pallets would accelerate to dangerous speeds and impact the front stop with damaging force. Brakes are spaced at intervals throughout the lane to maintain a safe, consistent travel speed from load end to pick face regardless of pallet weight.

How do I determine the correct lane depth for my operation?

Lane depth is determined by your replenishment frequency and the number of pallets per SKU you want to hold in the system. A good rule of thumb is to design lanes to hold 1.5 to 2 times your average replenishment quantity, so lanes are never empty before the next replenishment cycle. We model lane depth based on your actual SKU velocities.

Pallet flow rack entry and exit aisle configuration
Pallet flow roller lane detail and brake assembly
Multi-level pallet flow system installation

Is Pallet Flow Racking Right for Your Facility?

  • Available options: New, certified used, and custom-configured systems
  • Installation: Professional installation and teardown by our trained crews
  • Layout support: CAD-based warehouse layout assistance included
  • Service area: Utah, Nevada, Idaho, Colorado, Arizona, Wyoming, and Montana
  • Response time: Quote within 1 business day. Site visits available.
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Our team of warehouse experts is ready to help you find the perfect solution for your facility. Contact us today for a free consultation and layout.

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