Cantilever Racking: When Do You Need It?
Not all loads sit neatly on a 48x40 pallet.
If you’re storing long, bulky, or irregular materials, traditional pallet racking may create more frustration than efficiency. That’s where cantilever racking comes in.
Cantilever systems are specifically designed for materials that can’t be safely or efficiently stored on standard pallet beams.
What Is Cantilever Racking?
Cantilever racking is a storage system built with:
Vertical columns
Horizontal arms that extend outward
No front upright columns obstructing the load
Instead of pallets resting between front and rear beams, materials rest directly on projecting arms. The open front design allows forklifts to place and retrieve long loads easily.
This makes cantilever ideal for materials that are:
Long
Oversized
Awkwardly shaped
Loaded from the side
When Standard Pallet Racking Doesn’t Work
Traditional selective pallet racking works well for palletized loads with consistent dimensions.
But problems arise when you’re storing:
Lumber
Steel bar or pipe
Tubing
Furniture components
Sheet goods
Long crated materials
Trying to store these on pallet racking can lead to:
Overhang beyond beam supports
Instability or deflection
Unsafe load placement
Wasted vertical space
Damage from improper support
If your material extends significantly past standard beam depth, cantilever is often the safer and cleaner solution.
When You Should Consider Cantilever Racking
Cantilever makes sense when:
Your product length exceeds typical pallet depth (8 ft, 12 ft, 16 ft, or longer)
You need clear front access with no vertical obstruction
Loads vary in length but share similar weight profiles
You want faster loading and unloading of long materials
You are currently storing long items on the floor due to lack of proper racking
It is particularly common in:
Lumber yards
Steel and metal distribution
Building material suppliers
Manufacturing operations with long components
Single-Sided vs. Double-Sided Cantilever
Cantilever systems can be configured as:
Single-sided (against a wall)
Double-sided (accessible from both sides in a row)
The right choice depends on your layout and aisle design. Double-sided systems maximize density in the center of a warehouse, while single-sided units work well along perimeter walls.
Capacity and Engineering Considerations
Cantilever systems must be engineered based on:
Load length
Load weight per arm
Load distribution (uniform vs. point loading)
Arm spacing
Column height
Base design
Improper arm spacing or undersized columns can lead to excessive deflection or instability.
If you’re evaluating load capacity questions, review:
→ How Much Weight Can Pallet Racking Hold? (Load Capacity Explained)
→ What Are Point Loads vs. Uniform Loads in Racking?
Indoor vs. Outdoor Cantilever
Cantilever racking is frequently used outdoors for lumber and pipe storage.
Outdoor systems require:
Hot-dip galvanized finishes
Proper anchoring
Consideration for wind and environmental loads
If you’re storing materials outside, structural engineering becomes even more important.
When Cantilever Is the Wrong Choice
Cantilever is not ideal if:
You store primarily palletized goods
Your loads are short and uniform
You need high-density pallet storage
You require carton-level picking
In those cases, traditional systems like selective, push-back, or pallet flow racking may be more appropriate.
If you’re unsure what fits your operation:
→ What Kind of Racking Is Best for My Needs?
The Real Question
Cantilever racking isn’t about preference — it’s about geometry.
If your material can’t sit safely between two beams without overhang, cantilever is usually the correct structural solution.
The goal isn’t just storage — it’s safe, stable, efficient handling of long materials.
If you’re evaluating whether cantilever makes sense for your warehouse, we can walk through your load dimensions, weight, and layout to determine the right configuration.
Or give us a call at (630) 765-5476.