Looking to upgrade your warehouse storage but getting stuck on all the technical jargon? You’re not alone. Whether you’re planning your first pallet racking installation or reviewing an existing layout, this plain-English glossary breaks down the essential terms you’ll encounter in warehouse storage and racking.
Each entry includes a simple definition and its practical use — designed for quick reference and easy decision-making.
A flexible racking system made up of horizontal beams and upright frames. Beam levels can be adjusted to suit different pallet sizes. Ideal for warehouses with mixed inventory.
The space between racking rows where forklifts travel. Aisle width depends on the type of forklift used:
Standard: 3.0–3.6 metres
Narrow Aisle: 2.0–2.6 metres
Very Narrow Aisle (VNA): 1.6–2.0 metres
The horizontal bar that connects two uprights to support pallets. Beam length and weight capacity must match your load type.
A racking system designed for long, awkward loads like timber, pipes, or steel sections. Uses arms that extend out from vertical columns, allowing full front access.
A protective barrier installed around the base of uprights to prevent impact damage from forklifts or pallets. Also called post protectors.
High-density storage system with rails that allow forklifts to enter the racking structure. Best for storing large quantities of similar items. Uses LIFO (last in, first out) rotation.
A sign attached to a racking bay stating the maximum weight capacity per beam level and bay. Required by health and safety regulations.
Wire mesh panels placed across beams to support non-palletised loads, improve airflow, and meet fire safety requirements.
A flat transport structure that supports goods in a stable fashion. Standard UK pallet size is 1200 mm x 1000 mm. Load type affects racking design.
A storage system that holds palletised goods on multiple levels. Used to maximise vertical space and improve warehouse efficiency.
High-density system where pallets are loaded onto inclined rails. Each new pallet pushes the previous one back. Ideal for FIFO or bulk storage.
The vertical steel frame in a pallet racking system. Anchored to the floor and supports horizontal beams.
Storage Equipment Manufacturers Association. Sets recognised safety standards for racking products and installers in the UK.
The maximum weight that can be evenly distributed across a shelf or beam. Exceeding the UDL can lead to structural failure.
A warehouse design that uses aisles narrower than 2 metres. Increases storage capacity but requires specialised forklifts like turret trucks.
The strategic arrangement of racking, walkways, workstations, and despatch zones to maximise space and improve workflow.
An alternative term for mesh decking. Offers fire safety advantages and visibility compared to timber boards.
Two racking bays placed against each other to form a double-sided row. Common in large warehouses to increase density.
| Criteria | Adjustable Pallet Racking (APR) | Drive-In Racking | Cantilever Racking | Mobile Racking | Push-Back Racking |
|---|---|---|---|---|---|
| Best For | Mixed inventory | Bulk storage of identical items | Long, awkward loads (pipes, timber) | Maximising limited floor space | Medium turnover, dense storage |
| Stock Access | Direct access to every pallet | LIFO (Last In, First Out) | Full front access | Direct access | LIFO/FIFO depending on setup |
| Space Efficiency | ★★★ | ★★★★ | ★★ | ★★★★★ | ★★★★ |
| Flexibility | ★★★★★ | ★★ | ★★★ | ★★ | ★★★ |
| Forklift Requirement | Standard forklift | Standard forklift | Forklift with long forks | Specialised guidance system | Standard forklift |
| Ideal For | General warehousing, eCommerce | Cold stores, bulk product | Timber yards, steel suppliers | Archive storage, pharma, high-value goods | Food & beverage, retail backstock |
If you have questions on the best type of warehouse pallet racking for your business, get in touch with our friendly team today.
