Pallet Flow Racks
Gravity-Fed Efficiency for High-Density FIFO Storage
What Are Pallet Flow Racks?
Pallet flow racking systems—also known as gravity flow racks—use inclined roller lanes that let pallets move forward automatically by gravity as front pallets are removed. They provide high-density, first-in, first-out (FIFO) storage that’s ideal for perishable goods, high-turn inventory, and continuous production lines.
At Vertical Storage USA, we engineer pallet flow racks that balance throughput, density, and product rotation—customized for your load weights, pallet types, and operating environment.
Key Advantages
FIFO Inventory Control
Recover aisles and fill vertical cube for big gains in pallet positions.
High-Density Storage
Choose drive-in (LIFO) or drive-thru (FIFO) based on inventory rotation.
Maximum Throughput
Perfect for production runs, staging, and reserve storage.
Reduced Travel Time
Tailored rail heights, entry guides, and pallet stops.
Low Maintenance
Fewer aisles, more storage in the same footprint.
How It Works
Best Fit Applications
Cold Storage & Freezers
Food Distribution
Manufacturing Lines
Pharmaceutical & Medical
Retail Distribution Centers
Pallet Flow Racks vs. Other Racking Types
| Feature | Pallet Flow | Drive-In | Push-Back | Selective |
|---|---|---|---|---|
| Access Type | FIFO | LIFO | LIFO | Direct |
| Density | High | Very High | High | Low |
| SKU Variety | Medium | Low | Medium | High |
| Aisle Count | Reduced | Minimal | Reduced | Highest |
| Best Use | Perishable goods, FIFO | Reserve storage | Medium rotation | Mixed SKUs |
Frequently Asked Questions (FAQs)
What is a pallet flow rack system?
A pallet flow rack—also known as a gravity flow rack—uses inclined roller lanes that allow pallets to move forward automatically as each front pallet is removed. This creates true FIFO (first-in, first-out) inventory rotation, maximizing throughput and reducing aisle space in warehouse storage optimization layouts.
How does a pallet flow rack work?
Each lane is built with rollers, brakes, and entry guides that let pallets roll forward smoothly by gravity. When a front pallet is picked, the next pallet automatically moves into position.
What makes pallet flow racks ideal for FIFO storage?
Because pallets load from the back and discharge from the front, pallet flow racks naturally maintain FIFO rotation—perfect for cold storage, food and beverage, and pharmaceutical operations where product date tracking is critical. Unlike push-back racking, which operates on a LIFO principle, pallet flow guarantees first-in-first-out movement.
What industries benefit most from pallet flow racks?
This system is common in cold storage warehouses, food distribution centers, and pharmaceutical facilities where continuous picking is essential. It also integrates seamlessly with AS/RS systems and vertical lift modules to streamline production and shipping zones.
How deep can a pallet flow lane be?
Flow lanes can be configured 2 to 20+ pallets deep, depending on your load capacity and required turnover rate.
Our warehouse design experts use advanced modeling to optimize rail pitch, roller spacing, and braking systems for your operation.
What pallet types work best in pallet flow racks?
Standard GMA 48×40 pallets or any four-way entry pallet with intact bottom deck boards will work best. For older or mixed pallets, consider adding warehouse storage accessories like pallet stops or entry guides to ensure smooth travel across the rollers.
How do pallet flow racks control pallet speed?
Each flow lane uses brake rollers or speed controllers that manage descent as pallets move forward. This maintains steady flow and prevents damage to goods or rack components.
If you’re sourcing replacement parts, explore used equipment and systems for compatible roller and brake assemblies.
Used & Refurbished Options
Looking to expand on a budget?
Check our Used Equipment & Systems for certified flow rack lanes, rollers, and safety accessories—all inspected and ready for installation.
Start Your Project
Ready to improve product rotation and storage density?
Let Vertical Storage USA design a gravity-driven pallet flow system tailored to your warehouse.
