Static racking just can't compete on density or rotation control. As e-commerce and 3PL operators expand their US footprint in 2025, demand for engineered, certified flow-rack systems has climbed sharply. Here's what's driving that shift, and who's building the systems worth considering.
TL;DR
- Pallet flow racking uses gravity-fed rollers or rails for FIFO storage and high-density storage
- Evaluate manufacturers on engineering support, steel quality, certifications, and installation/service capability
- Leading US manufacturers for 2025: RackUSA, Ridg-U-Rak, Steel King, Frazier Industrial, and UNARCO
- Don't rely on certifications alone; verify the exact product family covered by R-Mark or ANSI MH16.1
Overview of Pallet Flow Racking in the US Warehousing Industry
Pallet flow racking is a sloped system of rollers or rails that moves pallets automatically by gravity. Operators load on one end and pick from the other, enforcing FIFO rotation without manual reshuffling.
The North American pallet-racking system market was valued at roughly $3.46 billion in 2024, with projections reaching $5.84 billion by 2031. Pallet flow sits inside that growth as the go-to format for food, beverage, pharma, and 3PL operators who need density and rotation control at once.
The manufacturers below are ranked on their ability to design, engineer, and install pallet flow systems that hold up under real warehouse conditions, not just spec sheets.
Top Pallet Flow Rack Manufacturers in the United States (2025)
We evaluated each company on five factors: engineering capability, manufacturing capacity, certifications, safety compliance, and service reach across US operations.
RackUSA
RackUSA has manufactured storage racks since 1972, operating out of Gómez Palacio, Durango, Mexico, with commercial offices and warehouses in Laredo, Houston, and Los Angeles serving the US market. The company's pallet-flow dynamic racking is built for full-pallet storage, high-turnover inventory, and strict FIFO rotation.
What sets RackUSA apart is its turnkey project model: engineering, installation, and maintenance are bundled with product purchases rather than sold as standalone services. That means facility layout, load analysis, and PE-stamped drawings can be folded into a single project scope instead of separate line items.
| Category | Details |
|---|---|
| Manufacturing | Plant in Gómez Palacio, Mexico; US-based offices in Laredo, Houston, and Los Angeles handle distribution and commercial operations |
| Certifications | MHI member; R-Mark certified (Certified System #5190) for cold-formed steel racking under ANSI MH16.1-2023 |
| Service Scope | Engineering, installation, and maintenance bundled into product and turnkey project purchases |
Ridg-U-Rak
Family-owned since 1942, Ridg-U-Rak is one of North America's largest pallet rack manufacturers, with three facilities in North East, Pennsylvania totaling over 400,000 square feet.
Its gravity flow rack line supports lanes up to 15 positions deep, using rollers and brake systems to control pallet speed. For operations in earthquake-prone regions, the company's Pellegrino Seismic System addresses lateral load requirements that standard racking often overlooks.
Key strengths:
- Annual production capacity above 130 million pounds of storage rack
- AWS and CWB welding-process certifications
- Product range spans gravity flow, selective, drive-in, and full pick modules
Steel King Industries
Founded in 1970 and headquartered in Stevens Point, Wisconsin, Steel King runs manufacturing facilities in Wisconsin and Rome, Georgia. Every product, including its SK3400 pallet flow system, uses 100% US-sourced steel.
The SK3400 uses inclined flow rails, rollers, and self-energized speed controllers so pallets advance automatically as loads are removed. Steel King states this design delivers nearly 90% more storage density than selective racking, a manufacturer claim worth verifying against your specific layout.
Credentials and capabilities:
- Welders qualified to AWS D1.1/D1.3 standards
- R-Mark certified manufacturer with Certified Welding Inspectors on staff
- Single-source consistency across flow racks, drive-in, pushback, cantilever, and mezzanines
Frazier Industrial Co.
Established in 1949, Frazier operates ten manufacturing facilities across the US, Canada, and Mexico. Its pallet flow systems use 100% hot-rolled structural steel, a durability advantage over roll-formed alternatives that some competitors rely on.
Frazier's flow rack line accounts for load weight, center of gravity, and pallet condition through configurable options:
- Poly wheels for lighter, cleaner pallet loads
- Steel wheels for heavier industrial applications
- Wide rollers and specialty tracks for irregular pallets
- Speed controllers to prevent shingling and product damage
The company backs this with in-house design software and dedicated engineering teams, plus RMI R-Mark program certification.
UNARCO Material Handling
UNARCO has designed structural and roll-formed racking for over 60 years, running three manufacturing facilities in Springfield, Tennessee; Lewisville, Texas; and Pandora, Ohio.
Its pallet flow systems use heavy-duty skate wheels on sloped shelves, with pitch control, end stops, and braking systems supporting lanes up to 20 pallets deep. UNARCO serves everything from mid-size distribution centers to Fortune 500 clients needing custom-engineered solutions.
| Category | Details |
|---|---|
| Experience | 60+ years in engineered storage systems |
| Manufacturing | Advanced powder coat paint lines for finish durability |
| Compliance | Follows 2023 RMI Specification (ANSI MH16.1); holds original RMI R-Mark for frame and beam capacity charts |
How We Chose the Best Pallet Flow Rack Manufacturers
The most common buyer mistake? Comparing quotes on price alone while ignoring engineering support, seismic compliance, or fire code coordination. A cheaper system that fails a local inspection, or worse, underperforms under load, costs far more in downtime and rework.
We weighted five factors against real operational outcomes:
- Manufacturing capacity — Facilities with higher throughput typically deliver shorter lead times on custom configurations
- Steel quality — Hot-rolled structural versus roll-formed steel affects long-term durability under heavy cycling
- Safety certifications — MHI/RMI membership and R-Mark certification signal ANSI MH16.1 compliance; confirm the exact product family covered
- Engineering and design support — PE-stamped drawings and seismic analysis reduce retrofit risk after installation
- Installation and maintenance network — Ongoing support determines how quickly safety issues get caught and fixed
RMI's updated seismic and stability methodology was adopted into the newest International Building Code in 2024, so older engineering assumptions may no longer hold up in an inspection. Confirm which code edition your manufacturer designs against before signing off on drawings.
Conclusion
The right pallet flow rack partner should match your facility's layout, throughput targets, and growth plans, not just come in under budget. A system that looks identical on paper can behave very differently once it's loaded with real pallets and real SKU variance.
Before you finalize a vendor, confirm they can deliver on:
- Ongoing safety and maintenance support after install
- Seismic and fire code compliance for your facility
- Cross-border service if you expand into Mexico or Central America
RackUSA offers turnkey engineering, installation, and maintenance support for pallet flow projects across the US and Mexico, built around facility-specific load and layout requirements. Explore RackUSA's pallet flow rack systems to see how the design process works for your operation.
Frequently Asked Questions
What is pallet flow racking used for?
Pallet flow racking supports high-density FIFO storage, making it ideal for perishables, date-sensitive inventory, and operations with high SKU turnover. It's common in food, beverage, and pharmaceutical distribution.
How much does pallet flow racking cost compared to selective racking?
Pallet flow racking costs more upfront due to rollers, rails, and speed controllers. Over time, it typically pays off through better space density and reduced labor for stock rotation.
What industries benefit most from pallet flow systems?
Food and beverage, pharmaceuticals, and high-turnover distribution centers see the biggest gains, largely due to strict rotation requirements and throughput demands.
How is pallet flow racking different from push-back racking?
Pallet flow racks load on one end and unload from the other, enforcing FIFO. Push-back racks load and unload from the same end, operating as a LIFO system better suited for lower-turnover SKUs.
What certifications should a pallet flow rack manufacturer have?
Look for RMI/ANSI MH16.1 compliance, MHI membership, and R-Mark certification. Ask specifically which product family the certification covers, not just whether the company holds one.
Can pallet flow racks be customized for different pallet conditions and sizes?
Reputable manufacturers offer configurable roller or rail systems adjusted for pallet quality, load weight, and lane depth. Confirm specific weight ranges and pallet tolerances during the engineering phase, since these vary by project.
