Warehouse Pallet Rack Types Explained: Identification Guide for Buyers

Looking to optimize your warehouse storage but not sure which pallet rack system is right for your needs? This comprehensive pallet rack identification guide will walk you through the most common types of pallet racking, their key features, and ideal use cases. From selective racking to drive-in, push back, and pallet flow systems, understanding the differences can help you improve space utilization, enhance operational efficiency, and make better purchasing decisions. Whether you’re upgrading an existing storage facility or setting up a new warehouse, this guide provides the essential knowledge to identify and choose the right racking solution for your business.

Selective Pallet Racking

Most common type

Structure: Uprights + horizontal beams; one pallet deep

Identification features:

Easy access to every pallet

Single-deep configuration

Adjustable beam heights

Best for: General warehousing, high selectivity, FIFO (First In, First Out)

Drive-In / Drive-Through Racking

Structure: Continuous lanes, no individual beam levels

Identification features:

Forklifts drive directly into the rack system

Rails instead of beams support pallets

Drive-In (single entry); Drive-Through (entry on both ends)

Best for: High-density storage, low SKU variety, LIFO (Last In, First Out)

Push Back Racking

Structure: Sloped rails with carts or trolleys

Identification features:

Pallets rest on nested carts that push back as new pallets are added

Typically 2–6 pallets deep

Best for: High-density storage, limited selectivity, LIFO

Pallet Flow (Gravity Flow) Racking

Structure: Sloped roller tracks

Identification features:

Loads enter on one side and move to the other by gravity

First pallet in is the first pallet out

Best for: FIFO inventory, perishable goods, high-volume

Cantilever Racking

Structure: Vertical columns with horizontal arms (no front upright)

Identification features:

Open front design

Suitable for long, bulky items like pipes or lumber

Best for: Long or irregular-shaped items

Double-Deep Racking

Structure: Similar to selective racking, but two pallets deep

Identification features:

Requires a deep-reach forklift

Higher density than selective but less access

Best for: Moderate selectivity and storage density

Structural vs. Roll-Formed Racking

Roll-formed: Lighter-duty, teardrop or slotted connection styles

Structural: Made from hot-rolled steel, bolted connections, heavier-duty