Cantilever Racking: When Do You Need It?

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.

Long Oversized Awkwardly shaped Loaded from the side

When does standard pallet racking not 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

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

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 should you 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

Lumber yards Steel and metal distribution Building material suppliers Manufacturing operations with long components

Single-sided vs. double-sided cantilever — what is the difference?

Cantilever systems can be configured as:

• Single-sided (against a wall)
• Double-sided (accessible from both sides in a row)

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.

What are the 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.

Indoor vs. outdoor cantilever — what changes?

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

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 is cantilever the wrong choice?

What is the real question to ask before choosing cantilever?

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.