Anchoring
Anchor Bolts: Nominal Embedment vs. Effective Embedment
Why the embedment depth that resists load differs from the drilled depth — and how it affects anchor capacity.
Product Families
Racking Solutions for Every Level of the Supply Chain
From selective pallet rack to automated rack structures, every UNARCO RACKING system is engineered around your load profile, SKU velocity and building constraints — not pulled from a generic catalog.
Pallet Rack
Structural and roll-formed selective rack with 100% pallet accessibility — teardrop interchangeable, T-Bolt and heavy-duty structural options.
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Carton Flow
Gravity-fed roller and wheel lanes for split-case picking. FIFO rotation cuts walk time in e-commerce and retail fulfillment.
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Pallet Flow
High-density FIFO storage with dynamic gravity lanes — ideal for date-coded, perishable and high-throughput pallet SKUs.
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Push Back
Nested-cart LIFO storage that stores multiple pallets deep per lane while keeping every SKU face accessible from one aisle.
Learn MoreDrive-In / Drive-Thru
The densest pallet storage format. Lift trucks enter the structure on rails — ideal for bulk product and cold storage.
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Pick Modules
Multi-level picking structures that integrate carton flow, pallet flow, walkways and conveyor into one engineered system.
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Cantilever
Single- and double-sided arms for long, bulky loads such as lumber, pipe, bar stock and furniture.
Learn MoreAS/RS Systems
Tight-tolerance rack for unit-load, mini-load and VNA automation, engineered to the integrator’s equipment requirements.
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Retail Rack
Sales-floor pallet rack with merchandising accessories for home-improvement, warehouse clubs and big-box retail.
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Rack Repair
Engineered bolt-on repair kits restore damaged uprights in place — less downtime than full frame replacement.
Learn MoreSteel Mezzanines
Free-standing and rack-supported platforms that multiply usable floor area without relocating or expanding the building.
Learn MoreView the Full Product Range
Compare specifications, components and accessories across all UNARCO RACKING systems.
All Products Who We Are
Manufacturing the Widest Assortment of Engineered Pallet Racking for Nearly 70 Years
UNARCO RACKING manufactures structural and roll-formed pallet racking and engineered warehouse storage systems for distribution centers, e-commerce fulfillment, cold storage and retail. As pioneers of the pallet rack industry, we design complete systems — not just components.
Our customer base spans every level of the supply chain, including long-term partnerships with Fortune 500 companies. Every rack is fabricated in strict compliance with current RMI standards, and our engineers support each project from layout and seismic design to onsite project management and installation.
- RMI / ANSI MH16.1 compliant fabrication
- In-house project engineering
- Seismic & anchorage design
- Automated powder-coat paint lines
- Structural & roll-formed in one source
- Authorized distributor network
0+
Years of pallet rack manufacturing experience (nearly 70)
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Engineered storage product families from a single source
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Racks fabricated to current RMI specifications
F500
Fortune 500 partnerships across every industry
How We Deliver
From Layout to Live Operation: Our Engineered Project Workflow
A single accountable team reduces risk for overseas buyers and multi-site operators — every stage is documented and engineered.
Site & Load Analysis
Building drawings, clear height, pallet weights, SKU velocity and lift truck data.
Engineering & Seismic Design
Layout optimization, capacity calculation, slab and anchor embedment review.
Fabrication
Structural and roll-formed production to RMI specifications with automated powder coat.
Project Management
Scheduling, logistics and installation oversight by dedicated project engineers.
Lifecycle Support
Rack protection, inspection guidance and engineered repair for long-term safety.
Why UNARCO RACKING
The Benchmark of Engineered Storage Solutions
What procurement teams and warehouse engineers gain when they specify UNARCO RACKING.
Taking Care of Our CustomersThousands of satisfied customers rely on decades of project engineering experience.
Engineering Capabilities
Decades of highly engineered project experience to design the most efficient storage solution for your warehouse.
Learn MoreProject Management
Project engineers manage your pallet rack project from initial design to complete installation — one point of accountability.
Rack Protection
Column protectors, guard rails and durability add-ons that minimize impact damage and keep your operation safer.
Automated Paint Lines
Multi-million-dollar investment in state-of-the-art powder-coat lines delivers a uniform, long-lasting finish on every component.
Buyer’s Guide
Which Racking System Fits Your Inventory Profile?
An engineer’s quick comparison of density, selectivity and inventory rotation — the three factors that decide most racking specifications.
| System | Storage Density | Selectivity | Rotation | Best Suited For |
|---|---|---|---|---|
| Selective Pallet Rack | Moderate | 100% — every pallet | Any | High SKU counts, mixed velocity, general distribution |
| Push Back Rack | High | One SKU per lane face | LIFO | Medium-velocity SKUs with several pallets each |
| Pallet Flow Rack | Very High | One SKU per lane | FIFO | Food & beverage, date-coded and perishable goods |
| Drive-In / Drive-Thru | Very High | Low | LIFO / FIFO | Bulk storage, low SKU count, freezer and cold storage |
| Carton Flow Rack | High (case level) | Every SKU at pick face | FIFO | Split-case picking, e-commerce, pick modules |
| Cantilever Rack | Moderate | High | Any | Lumber, pipe, tubing, sheet goods and furniture |
| AS/RS Rack | Very High | Automated | System-controlled | High-throughput, labor-constrained or tall facilities |
Final selection should always be confirmed by a rack engineer using actual load data, building conditions and local seismic requirements. See pallet rack capacities for upright and beam load tables.
Insights & News
The Latest From UNARCO RACKING
Practical engineering guidance from our team on anchoring, seismic code changes and safe rack modification.
Engineering Data
Anchor Bolt Embedment Tables
Reference embedment values to help verify slab thickness and anchor selection for rack baseplates.
Foundations
Concrete Slab Importance in Rack Anchor Embedment
How slab thickness and condition determine whether anchors can develop their rated capacity.
Seismic
New Code Editions Increase Seismic Forces
What updated building code editions mean for rack design forces, frame selection and anchorage.
Rack Safety
Safely Adding Upright Frame Extensions
Engineering checks required before extending frames to gain vertical storage height.
Rack Safety
Mixing Rack Components from Different Manufacturers
Why mismatched beams and uprights can void rated capacities — and when it can be engineered safely.
Capacity
Removing Pallet Rack Bottom Beams to Double Stack Pallets
How changing beam elevations alters upright capacity, and what must be recalculated first.
Drive-In
Drive-In Column Safety
Protecting columns in lift-truck-entry systems where impact risk is highest.
Mobile Rack Warrior 
Rack Engineering Tools in Your Pocket
The UNARCO RACKING app for iPhone, Android tablets & smartphones
- Seismic Zip Code Search
- Upright & Beam Capacities
- Beam Capacity Calculator
- Rack Installation Instructions
- Engineering Glossary
- Standard Paint Colors
- Rack Photos
- Rack Safety Guidance
FAQ
Pallet Racking Questions from Global Buyers
Answers our engineers give most often to procurement managers and warehouse planners.
What standards does UNARCO RACKING pallet rack comply with?
All UNARCO RACKING pallet rack is fabricated in strict compliance with current Rack Manufacturers Institute (RMI) specifications (ANSI MH16.1), the recognized design standard for industrial steel storage racks.
What is the difference between structural and roll-formed pallet rack?
Structural rack is built from hot-rolled steel channel and bolted together, offering high impact resistance for heavy-duty, high-traffic or drive-in applications. Roll-formed rack is cold-formed from steel coil, lighter, faster to reconfigure and highly cost-efficient for selective storage.
Can UNARCO RACKING engineer racks for seismic regions?
Yes. Our engineers evaluate site-specific seismic data, current building code editions, slab thickness and anchor embedment to specify upright frames, beams, base plates and anchors that meet the required design forces.
Can damaged pallet rack be repaired instead of replaced?
In many cases, yes. Engineered bolt-on rack repair kits restore the capacity of damaged uprights in place, reducing downtime and avoiding the full unloading of bays, provided the repair is specified by qualified engineering.
What information should I prepare for a racking project review?
Prepare your building layout or CAD drawing, clear ceiling height, pallet dimensions and weights, SKU count and turnover, lift truck type and reach, fire sprinkler requirements and the project location for seismic evaluation. Send it to [email protected].
Need Help with a Custom Racking Solution?
We are the engineering experts. Share your layout and load data: [email protected]