Types of Racking System in Warehouse: Your Complete Guide to Optimized Storage-Guangshun

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Types of Racking System in Warehouse: Your Complete Guide to Optimized Storage

Source:Guangshun
Update time:2025-07-29 14:15:14

In the relentless pursuit of warehouse efficiency and space optimization, racking systems stand as the undisputed backbone. Understanding the various types of racking system in warehouse environments is paramount for any operation aiming to maximize both vertical cube utilization and horizontal floor space. These systems are far more than just metal frameworks; they are the critical infrastructure that dictates inventory flow, accessibility, and ultimately, operational success.

The evolution of warehouse racking types has mirrored the changing demands of logistics – accommodating diverse product ranges, integrating with automation, and providing scalable solutions for ever-increasing storage needs. Choosing the right types of racking system in warehouse directly impacts inventory control accuracy, handling speed, and cost-effectiveness. This guide delves deep into the most common and effective types of warehouse racking, equipping you to make informed decisions for your specific operational requirements.

types of racking system in warehouse

What is a Racking System?

Fundamentally, a racking system consists of modular structures, typically constructed from durable steel, designed to store industrial products. These products are usually held on pallets, within boxes, or in bins. Unlike static shelving, warehouse racking systems are engineered to withstand intensive use and are specifically compatible with material handling equipment like forklifts and automated guided vehicles (AGVs). They are the essential framework within warehouses, distribution centers, and production facilities, transforming open floor space into organized, high-density storage zones. The selection among the different types of racking system in warehouse depends heavily on the nature of the goods stored and the operational workflow.

Key Advantages of Implementing Warehouse Racking Systems

Investing in the right types of racking system in warehouse operations delivers significant competitive advantages:

Enhanced Inventory Control: Well-organized racking systems streamline all warehouse processes. They enable superior tracking and visibility from goods receipt through storage, order picking, and finally, shipping. Knowing exactly where every SKU is located is fundamental to accuracy and efficiency.

Increased Storage Density: Modern warehouse racking types, especially high-density solutions, allow vast quantities of inventory to be concentrated within the same available footprint. This is crucial as warehouse space is often a major cost center.

Optimized Space Utilization: Floor space is finite and expensive. Racking systems unlock the potential of vertical space, turning unused height into valuable storage capacity. Designing a layout with the appropriate types of racking system in warehouse is significantly more cost-effective than expanding the facility footprint.

Improved Accessibility & Flow: Different types of racking system in warehouse cater to different access needs (FIFO, LIFO, direct access) and product flows, ensuring that goods can be stored and retrieved efficiently, minimizing travel time and handling efforts.

Safety and Durability: Professionally designed and installed racking systems, manufactured from high-quality materials and complying with safety regulations, provide a safe and robust storage environment, protecting both inventory and personnel.

Critical Factors for Choosing the Right Warehouse Racking

Selecting the optimal types of racking system in warehouse is not a one-size-fits-all decision. It requires careful analysis of several key factors:

Unit Load Characteristics: The size, dimensions, weight, and type (pallets, boxes, bins, long goods) of your inventory are the primary determinants. Knowing the maximum load per pallet position and overall dimensions is non-negotiable.

Warehouse Infrastructure: Assess the available floor space, ceiling height, floor load capacity, column spacing, and door locations. The height of your facility is particularly decisive for maximizing vertical storage potential with taller racking systems.

Inventory Accessibility Needs: Determine how often SKUs are accessed (turnover rate) and the required picking method (case pick, pallet pick). Do you need direct access to every pallet (selective), or is high-density storage with deeper lanes acceptable? Is FIFO or LIFO inventory rotation critical?

Material Handling Equipment (MHE): The racking system must be fully compatible with your existing or planned forklifts, reach trucks, or automated systems. Consideration includes aisle width requirements and lift heights.

Budget & ROI: Evaluate both the initial investment and the long-term operational savings and durability. Some types of racking system in warehouse (like automated or high-density mobile) may have higher upfront costs but offer superior space savings and efficiency gains, leading to a faster payback period.

Consulting with experienced storage and warehouse design experts is highly recommended to navigate these factors and select the best types of racking system in warehouse for your unique needs.

types of racking system in warehouse

Exploring the Major Types of Racking System in Warehouse

Warehouse racking systems can be broadly categorized based on their primary function and the type of goods they store. Here's an in-depth look at the most prevalent types of racking system in warehouse:

Pallet Racking Systems

These racking systems are designed specifically for storing unitized loads on pallets, accessed using forklifts or other MHE. They range from highly accessible solutions to high-density configurations.

Selective Pallet Racking

Description: The most common and versatile of all types of racking system in warehouse. Pallets rest on horizontal load beams supported by vertical upright frames. Aisles are wide enough for forklift access to every single pallet location.

Advantages: 100% direct access to every SKU and pallet. High visibility. Easy installation and reconfiguration. Compatible with a vast range of SKUs and pallet sizes. Excellent for fast-moving goods.

Best For: Warehouses with a large variety of SKUs requiring frequent, individual access.

Drive-In / Drive-Thru Racking

Description: A high-density racking system where forklifts drive directly into the rack structure to store and retrieve pallets. Drive-In has access from one side only (LIFO inventory). Drive-Thru has access from both ends (FIFO inventory).

Advantages: Maximizes storage density by eliminating numerous aisles. Cost-effective high-density solution for large volumes of similar product.

Considerations: Requires specialized forklifts and skilled operators. Slower access times compared to selective racking. LIFO (Drive-In) or FIFO (Drive-Thru) restriction. Best suited for homogeneous products with lower rotation needs.

Best For: Bulk storage of seasonal items, beverages, or products with long shelf life where density is a priority over individual pallet access.

Pallet Flow Racking (Gravity Flow)

Description: A dynamic, high-density racking system operating on FIFO principle. Pallets are loaded onto inclined rails or wheels at the high end of a lane. Gravity causes them to flow smoothly to the front pick face as the lead pallet is removed.

Advantages: Automatic stock rotation (FIFO). High storage density. Reduced risk of product obsolescence. Excellent throughput for high-volume SKUs.

Considerations: Higher initial cost than static racking. Requires consistent pallet quality and weight. Slope and braking systems need careful design. Primarily FIFO.

Best For: High-volume, fast-moving SKUs, perishable goods (food, beverage), manufacturing lines, and applications where strict FIFO rotation is essential.

Push Back Racking

Description: A high-density racking system storing pallets 2-5 deep per lane, accessible from a single aisle. Pallets rest on nested carts riding on inclined rails. Loading a new pallet pushes the previous pallets back in the lane. Retrieving the front pallet allows the next one to roll forward.

Advantages: High density (deeper storage than selective) while still offering access from one aisle. Good selectivity – multiple SKUs can be stored in different lanes along the same aisle (LIFO per lane). Better accessibility than Drive-In for deeper lanes.

Considerations: LIFO per lane. Higher cost than selective racking. Requires consistent pallet specs. Cart maintenance potential.

Best For: Medium to high-volume SKUs where density is needed but multiple picks per lane are common. Ideal for wholesale, retail distribution, and cooler/freezer applications.

Double Deep Racking

Description: An extension of selective racking, where two pallets are stored deep per bay. Requires specialized forklifts (reach trucks with double-deep reach capability) to access the second pallet position.

Advantages: Increases storage density (nearly double selective) within the same aisle footprint compared to selective racking. Simpler and often lower cost than Push Back or Pallet Flow for 2-deep storage.

Considerations: No direct access to rear pallet – front pallet must be moved first. Requires specialized reach trucks. Slightly slower access times than selective racking. Reduced selectivity.

Best For: Warehouses needing higher density than selective racking offers, with moderate SKU variety per bay and suitable MHE. Often integrated into semi-automated systems like the Exotec Skypod.

Mobile Racking (Mobile Aisle Systems)

Description: This innovative racking system mounts entire rows of racking onto motorized mobile bases that move along embedded floor tracks. Aisles are opened only when needed by moving the adjacent rack rows.

Advantages: Offers the density of drive-in racking (or greater) while providing direct access to every pallet position like selective racking. Maximizes floor space utilization dramatically (can achieve up to 80-85% storage density).

Considerations: Highest initial cost among conventional pallet racking systems. Requires robust flooring and power infrastructure. Access to a specific aisle requires moving racks, introducing a slight delay. Safety systems are critical.

Best For: Environments with extremely high-value real estate (e.g., cold storage, archives, urban warehouses), storing high-value or low-turnover goods, or where maximizing cube utilization is the absolute priority.

Picking & Shelving Systems

These types of racking system in warehouse are optimized for storing smaller items, cartons, and bins, often facilitating manual order picking activities.

Carton Flow Racking (Gravity Flow for Cases)

Description: Similar principle to Pallet Flow, but scaled for cartons, totes, or boxes. Uses inclined roller tracks or wheels. Loaded from the rear, items flow forward by gravity to the pick face.

Advantages: Automatic product rotation (FIFO). High picking density and ergonomics – pickers remain at one location. Reduces walking and picking time significantly.

Best For: High-volume order picking of individual items or cases (e-commerce, retail replenishment).

Static Shelving (Light/Medium/Heavy Duty)

Description: Versatile shelving units for storing bins, boxes, or loose items. Classified by load capacity per shelf level (Light Duty: < 500kg, Medium Duty: 500-1000kg, Heavy Duty: >1000kg).

Advantages: Flexible, easy to assemble and reconfigure. Cost-effective for smaller items and manual picking. Good visibility.

Best For: Small parts storage, maintenance supplies, work-in-progress (WIP), document archives, and slower-moving items. Heavy-duty versions handle substantial weights.

Multi-Tiered (Mezzanine) Shelving

Description: Integrates shelving with structural platforms (mezzanines) supported by the racking itself or separate structures, creating multiple levels of storage and/or work areas.

Advantages: Exploits vertical cube extremely effectively. Creates additional floor space for storage or operations without expanding the building footprint.

Best For: Warehouses with ample height needing significantly more storage or operational space. Useful for consolidating picking operations.

Specialized Racking Solutions

Certain types of racking system in warehouse are designed for unique product shapes or specific industry needs.

Cantilever Racking

Description: Features strong vertical columns with horizontal arms extending outward. No front columns obstruct access. Designed for long, bulky, or irregularly shaped items.

Advantages: Unobstructed loading/unloading. Flexible arm heights. Ideal for awkward loads.

Best For: Lumber, pipes, tubing, sheet materials, furniture, carpets, rolls (paper, wire), and other lengthy or bulky items. Common in hardware, building supplies, and manufacturing.

Reel Racking (Coil Racking)

Description: Specialized racking systems designed specifically to safely store heavy coils or reels (e.g., steel, paper, cable, wire) vertically or horizontally. Often includes specialized cradles or supports.

Best For: Metal service centers, paper mills, cable manufacturing, and any industry handling heavy coils.

The diverse landscape of types of racking system in warehouse offers powerful solutions for nearly every storage challenge. From the ubiquitous versatility of selective racking to the space-maximizing power of mobile racking and the dynamic efficiency of flow systems, each type plays a vital role. Understanding the mechanics, advantages, and ideal applications of these different warehouse racking types is fundamental to designing a high-performing logistics operation.

There is no single "best" racking system. The optimal choice hinges on a meticulous analysis of your specific inventory profile, operational workflow, throughput requirements, available space, and budget. By carefully evaluating the factors outlined and potentially consulting with warehouse design and storage specialists, you can identify and implement the types of racking system in warehouse that will unlock maximum efficiency, safety, and profitability for your unique business needs. Investing time in selecting the right racking infrastructure is an investment in the long-term success and scalability of your warehouse operations.


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