Everything You Need to Know About Cantilever Racking
If you've been advised that cantilever racking would suit your warehouse, but you're not quite sure what it involves, you're in the right place. As a specialist supplier with years of hands-on experience helping warehouses, trade counters, and manufacturing sites optimise their storage, we've put together this practical guide to explain exactly what cantilever racking is, how it works, and whether it's the right solution for your operation.
What is cantilever racking?
Most conventional pallet racking relies on vertical uprights that frame each bay — useful for palletised goods, but a real obstacle when you need to store long, irregularly shaped, or oversized items. Cantilever racking solves that problem by replacing enclosed bays with horizontal arms that project outwards from a central column. Because there's no front upright blocking access, items of virtually any length can slide on and off freely.
The design originates from the cantilever principle used in structural engineering — the same concept behind a diving board or a bridge overhang, where a beam is anchored at one end and bears load along its unsupported length. Applied to warehouse storage, this means you get an open, unobstructed face that standard racking simply can't offer.
Cantilever racking vs. conventional pallet racking: at a glance
| Feature | Cantilever Racking | Conventional Pallet Racking |
|---|---|---|
| Best for | Long, bulky, or irregular items | Boxed, palletised, uniform goods |
| Front obstruction | None — fully open face | Vertical uprights limit width |
| Forklift access angles | Wide — approach from multiple angles | Typically one fixed approach per bay |
| Customisability | High — adjustable arm heights & lengths | Moderate — beam levels adjustable |
| Typical load types | Timber, piping, sheet metal, vehicles | Cartons, drums, wrapped pallets |
| Floor space efficiency | Excellent — vertical use of space | Excellent — especially with narrow aisles |
Who is cantilever racking for?
Cantilever racking is a strong fit for a wide range of industries — from builders' merchants and timber yards to automotive dealerships and steel stockholders. Below are the three scenarios where our customers find it most valuable.
1. You need to store long or bulky items
Cantilever racking was essentially built for this job. Timber lengths, steel sections, copper pipe, MDF sheets, and similar products can be stored along the full depth of the arms with no structural element interrupting their span. The open design also means operatives can assess stock condition, lengths, and quantities at a glance, which speeds up picking significantly on a busy site.
Beyond building materials, cantilever racking is commonly used for vehicle storage. Multiple cars can be racked on a single unit, stacked safely and accessed by forklift, a solution used by vehicle logistics companies, dealerships with space constraints, and car storage facilities.
2. You have underutilised vertical space
Floor-level clutter is one of the most common causes of reduced throughput and avoidable accidents in warehouse environments. Cantilever racking takes stock off the floor and moves it upwards, which clears walkways, improves sightlines, and makes forklift movements safer and more predictable.
Because cantilever arms can be accessed from a wide range of approach angles, unlike closed bays — the system works well even in warehouses where aisle widths are not uniform. This flexibility is something our team will assess with you as part of any site consultation.
3. You want a configurable, future-proof system
No two storage operations are identical, and cantilever racking reflects that. We supply units in a range of heights and widths, with arm lengths and load ratings matched to your specific stock profile. Accessories such as dividers, backstops, and protective post guards can be added to extend functionality further.
As your business grows or your stock mix changes, the system can be reconfigured — arms repositioned, bays extended, or additional columns added — without starting from scratch. That adaptability has a real long-term value that fixed storage solutions simply can't match.
Expert tip: When specifying cantilever racking, always account for your heaviest likely load per arm rather than your average load. Overloading arms (even occasionally) is the leading cause of cantilever system failures. Our team will help you calculate the right arm rating for your application before you order.
Safety and compliance considerations
Like all racking systems, cantilever units should be installed to the manufacturer's specification and inspected regularly in line with HSE guidance (HSG76) and the SEMA Code of Practice for the Use of Static Racking. Key points to keep in mind:
- Load notices should be displayed on every unit, stating the maximum arm load and bay load.
- Column base plates must be correctly anchored to the floor slab — specification depends on slab thickness and concrete grade.
- Damaged arms or columns should be taken out of use immediately and replaced before the system is reloaded.
- Annual inspections by a SEMA-approved racking inspector (SARI) are recommended for heavy-use installations.
If you're unsure about any aspect of compliance for your site, our team can advise — and we can point you toward qualified inspectors in your area.
Talk to our team
We've helped hundreds of businesses specify and install cantilever racking that genuinely improves how their warehouse operates — not just fills space. If you'd like to discuss your requirements, get a quote, or ask a technical question, get in touch with our team today. We'll give you straightforward, experience-backed advice with no pressure to buy.
