Keeping it Cool in Colorado: The Best Cold Storage Rack Solutions

Cold Storage Rack Systems to Maximize Freezer and Refrigerated Warehouse Efficiency

Consumer demands are evolving, and food producers and distributors in Colorado are under pressure to respond quickly. Choosing the right cold storage rack system is essential for organizing freezer and refrigerated spaces efficiently. The Apex team specializes in cold storage rack solutions designed to tackle the unique challenges of refrigerated warehousing, and here is the 411 on what they recommend when designing a cold storage space. 

What Makes a Pallet Rack System Ideal for Cold Storage?
Operating a cold storage or freezer warehouse requires systems that maximize space while maintaining high efficiency and productivity. With refrigerated warehouse space being so costly, there’s no room for wasted capacity or performance compromises. A cold storage rack system must seamlessly handle stock rotation, withstand extreme temperatures, and ensure smooth inventory movement.

Below is an overview of storage designs, materials, and systems best suited for productive and efficient cold storage environments.

Structural vs. Roll-Formed: A Hot Take on Choosing the Right Cold Storage Rack

Both roll-formed and structural steel pallet racks offer strength, durability, and reliability for warehouse storage. However, cold and freezer storage environments demand additional safety and performance considerations. Choosing the right rack type requires evaluating how well the system can endure harsh temperatures and withstand the fast-paced demands of cold storage operations. A well-designed cold storage rack system must be engineered specifically for these challenging conditions to ensure optimal performance and safety.

There’s a common misconception that structural racks are required in freezer storage because they’re inherently stronger. In reality, both roll-formed and structural racks can handle the capacity demands of frozen food storage. However, structural racks are more commonly used in freezer and cooler facilities due to the higher turn rates of perishable goods. Frequent handling increases the likelihood of forklift impacts, and structural racks are better suited to withstand these tough conditions while maintaining performance and safety.

Pallet Flow Rack

Pallet flow racks are gravity-driven systems designed to support first-in-first-out (FIFO) inventory rotation, helping food suppliers meet strict perishable date requirements and industry standards. Pallets are loaded onto wheeled or roller lanes from a rear charge aisle and glide forward to a separate discharge aisle for picking.

This design ensures seamless inventory rotation, minimizes congestion during loading and picking, and promotes accurate SKU selection. Pallet flow systems can also be optimized for carton picking, allowing items to flow directly to a conveyor or cart at the front. Once an empty pallet is removed, ready reserve stock automatically moves into place, replenishing the pick face.

Deep-Reach Rack

Deep-reach pallet rack, also known as double-deep rack, is a two-deep selective racking system that doubles pallet storage capacity for each SKU while consolidating aisle space. This system requires the use of a specialized deep-reach forklift to load and retrieve pallets efficiently.

The system above shows an offset cant leg frame, providing additional forklift clearance at the aisle face to minimize the risk of column damage. Double-deep pallet racks can be constructed from either roll-formed or structural steel components, offering flexibility based on your storage and durability needs.

Drive-In and Drive-Thru Racks

Drive-in and Drive-thru pallet racks are cost-effective solutions for high-density pallet storage, ideal for facilities looking to maximize storage within a compact footprint. These systems can accommodate anywhere from two to ten pallets deep per lane, with forklifts placing pallets onto horizontal rails by driving directly into the rack system.

The key difference between the two designs lies in access points. Drive-in racks allow forklifts to load and retrieve pallets from a single entry point, making them suitable for last-in-first-out (LIFO) inventory management. Drive-thru racks, on the other hand, feature separate entry and exit points, enabling first-in-first-out (FIFO) inventory rotation. This makes drive-thru racks particularly advantageous for freezer storage, as they better support date-sensitive products requiring consistent stock rotation.

Push-Back Rack Systems

Push-back rack systems are a versatile dynamic storage solution for cold storage and freezer applications. Pallets are loaded and retrieved from a single aisle, making push-back racks ideal for last-in, first-out (LIFO) inventory rotation. Each lane contains nested carts that glide on inclined rails. The first pallet is placed on the top cart, and subsequent pallets push back the previous ones to access the carts underneath.

Push-back systems are commonly built for 3-4 pallet depths but can be configured for deeper storage. Each SKU is assigned to its own lane, which increases picking speed and accuracy. Push-back racks are a popular choice for food operations requiring numerous pick faces.

Protecting Your Cold Storage Rack from Damage

Protecting your rack system from equipment impacts and ensuring it can withstand washdown and sanitizing processes is essential for long-term durability. Safeguarding posts and columns with customized safety accessories minimizes repair costs and prevents downtime.

Safety accessories such as row-end protectors, column protectors, and heavy-duty horizontal struts are crucial for maintaining rack integrity. These guards must be tailored to fit the freezer and cold storage rack system they protect. Choosing the appropriate guard depends on three key rack and facility specifications:

• Upright design
• Aisle width
• Forklift type and its compatibility with specific guard styles

Heating Up Cold Storage with Automation

Freezer and cold storage facilities are gaining attention not only due to surging consumer demand and expanding product variety but also because of rapid advancements in technology. Automation has become essential, driven by the need for speed and the challenges of recruiting labor willing to work in extreme conditions. Smart automation provides an effective solution, enabling faster, more efficient order fulfillment with fewer workers through customizable, scalable systems.

Automation also addresses potential health and safety risks associated with prolonged exposure to cold environments. From semi-automated to fully automated systems, smart technology seamlessly integrates into warehouse operations, managing tasks such as inventory storage, order fulfillment, SKU tracking, slotting, and more

Automated Pallet Shuttle Systems

Pallet shuttle systems are a popular automated solution for high-density storage in freezer and cold storage facilities. These deep-lane systems use a low-profile electric cart to move pallets from the loading aisle into designated storage bays within the rack.

To retrieve a pallet, the shuttle transfers it either to the opposite side of the system, similar to pallet flow, or back to the original loading side, resembling push-back functionality. From there, the pallet can be extracted using material handling equipment such as cranes, forklifts, or conveyors, depending on the operation’s setup.

This system offers the same selectivity and first-in-first-out (FIFO) functionality as pallet flow but eliminates the need for pitched flow rails. By doing so, it reduces the required rack height and eliminates the risk of pallet hang-ups.

Keep It Cool with Apex 

The Apex team is here to help you optimize your freezer and cold storage rack systems, ensuring maximum efficiency and achieving your throughput goals. We provide a full-service approach, including innovative warehouse system design, project management, professional installation, maintenance, and repair services.

Contact Apex today to schedule your free consultation!