New pallet racking can increase storage capacity, but the right design depends on what you store, how often you need to reach it, and the equipment that serves it. Start by measuring your pallet loads and mapping inventory movement, then compare rack types against those needs. Check aisle access, building constraints and safety requirements before approving a layout. This helps prevent a common planning mistake: adding pallet positions while making replenishment, picking or forklift travel less efficient. A supplier can develop a layout, but your team needs to provide accurate operating information and verify that the proposed system fits the site.
Estimate capacity from the inventory you need to hold, rather than from the number of positions that appear to fit on a drawing. Review stock levels over time, including seasonal peaks, inbound staging and any reserve stock kept outside the main storage area. Separate the total number of pallets from the number of distinct product lines: a large quantity of a few products can suit a different system from the same quantity spread across many products.
For each pallet type, record its dimensions, loaded weight, condition and any overhang. Include the tallest or heaviest loads, not only the typical ones. These details affect the proposed bay arrangement, beam levels and load ratings. If products are stored in different pallet sizes, establish whether the system must accommodate all of them or whether inventory can be grouped by pallet type.
Also identify how stock is accessed. Fast-moving goods may need convenient positions close to picking or dispatch, while slow-moving stock may be suitable for less accessible locations. Consider whether orders require access to individual pallets or whether products are generally moved in larger, predictable batches. These operating patterns influence the value of high storage density versus immediate access to each pallet.
Standard selective pallet racking is a common starting point because operators can access individual pallet positions from an aisle. More compact systems can increase storage density, but they usually change how pallets are loaded, retrieved or rotated. The table compares typical trade-offs; the right arrangement depends on the system design and the way your warehouse works.
| System | Access pattern | Often suits | Main trade-off |
|---|---|---|---|
| Selective racking | Direct access to each pallet position from an aisle | Warehouses with many product lines or frequent access to individual pallets | Requires aisles between rack rows, which can reduce storage density |
| Drive-in racking | Forklifts enter storage lanes to place or retrieve pallets | Large quantities of similar products stored in batches | Access within a lane is less flexible, and forklift movement inside the structure needs careful control |
| Double-deep racking | Two pallet positions deep, typically served by equipment that can reach the rear position | Operations seeking more density while retaining access by product line | Rear pallets are less directly accessible and may require specialised handling equipment |
| Push-back racking | Pallets occupy multiple positions deep on a system of carts or rails | Batch storage where several pallets of a product can be stored together | Access sequence is constrained; confirm how it fits stock rotation and replenishment |
| Pallet flow racking | Pallets move along a slightly inclined track from the loading side towards the retrieval side | Operations that can replenish from one side and pick from the other | Needs suitable pallet loads and consistent operating practices; confirm the intended stock rotation |
Selective racking is worth considering when product variety and direct access matter more than maximum density. Drive-in, push-back and flow systems can make better use of space for suitable inventory patterns, but each introduces operating constraints. Double-deep storage can be a compromise if the business can support the required equipment and manage access to rear positions. Ask the designer to explain how each option affects usable pallet positions, aisle requirements, replenishment and picking—not just the headline storage capacity.
A rack layout must work with the trucks and people that use it. Before agreeing to a drawing, check the equipment type, load dimensions, lifting height, turning needs and the clearances required for safe operation. Aisle width is not a stand-alone design choice: it depends on the truck, the load, the rack arrangement and the warehouse conditions. Have the proposed layout checked against the equipment specifications and actual operating tasks.
Trace the route of a pallet from receiving to its final location, then from storage to picking, packing or dispatch. Note where forklifts cross pedestrian routes, where orders wait for staging and where replenishment could interrupt picking. If new racking blocks a turning area, narrows a route or moves stock farther from a busy work zone, its added capacity may come with longer handling times.
Include space for more than the rack structure. Receiving and dispatch areas, order-picking locations, charging or parking areas for equipment, pedestrian access and emergency routes may all affect the usable layout. Check how the proposed rows relate to doors, columns, building services, lighting, sprinklers and other fixed features. A layout that fits on paper may need revision if it interferes with access or site operations.
Ask for the assumptions behind the proposed capacity. For example, clarify which pallet sizes, load weights, beam levels and storage positions the design uses. If the proposal assumes a particular forklift or pallet orientation, make sure that matches actual practice. A small change in inventory or equipment can affect whether a layout remains suitable, so record the design basis for future reviews.
Racking is a structural storage system, so its suitability depends on the loads, configuration, building and installation—not simply on whether the components are new. Have the system designed and installed by appropriately qualified professionals, using accurate information about stored loads and site conditions. Where relevant, confirm structural, seismic, fire and building requirements with local professionals familiar with the warehouse and applicable rules.
Check the floor and building structure as part of the planning work. The designer needs to understand the conditions at the proposed rack locations, including any constraints affecting supports or anchorage. Do not assume that a floor suitable for general warehouse traffic is automatically suitable for a particular racking arrangement. The appropriate assessment depends on the building and the system being proposed.
Plan for everyday hazards as well as structural design. Forklift impacts, loads placed incorrectly, damaged pallets and changes made without review can affect safe operation. The layout should provide workable access and protect routes and rack ends where the site assessment indicates protection is needed. Staff should know how loads are to be placed and what to do if a rack component or pallet is damaged.
Request clear documentation at handover, including the approved layout, design and loading information, installation details and operating instructions. Make sure load notices are visible and reflect the installed configuration. Establish how the site will monitor damage and arrange inspections or repairs under an appropriate maintenance process. Do not alter beams, frames, anchors or other components without approval from a qualified person responsible for the system’s design.
The purchase price is only one part of the decision. Compare proposals on a consistent basis and clarify what is included, such as design work, delivery, installation, protection components, documentation and staff instruction. Also account for any equipment changes, floor or building work, relocation of existing stock and temporary disruption during installation. These items can vary with the site and project scope, so request them as explicit inclusions or exclusions rather than relying on assumptions.
Consider ongoing operating costs as well. A denser system may require different handling equipment or more disciplined replenishment. A layout that increases travel or creates extra transfers can add labour and equipment use even if it holds more pallets. Ask suppliers to distinguish installed capacity from practical operating capacity, and assess the proposal against the work your team actually performs.
Plan the installation sequence with warehouse operations. Decide which areas can be cleared, how inventory will be protected or relocated, and how receiving and dispatch will continue while work is underway. Before reopening an installed area, confirm that the system matches the approved layout and that staff understand any changes to routes, access or storage rules.
Start with the maximum inventory you need to hold, then account for product variety, pallet sizes, stock rotation and the access required for picking and replenishment. Include staging and operational areas in the layout rather than treating every open floor area as storage. A rack designer can translate your inventory profile into a proposed layout, but the result is only as reliable as the information supplied.
No. Higher density can reduce direct access to individual pallets or change the equipment and handling process. It is most useful when inventory patterns suit the system and the gain in storage makes up for those constraints. Compare access and throughput as well as pallet positions.
Not necessarily. The equipment must be suitable for the proposed aisle arrangement, load, lift height and storage configuration. Confirm compatibility with the equipment supplier and the racking designer before committing to a layout.
Provide pallet dimensions and loaded weights, inventory quantities, product mix, stock-rotation requirements, equipment details and a plan of the warehouse. Include building constraints and describe how goods move through receiving, storage, picking and dispatch. Flag any loads or operating conditions that differ from the norm.
Changes to beam levels, bays, components or load arrangements can affect the design and rated capacity. Get the system reviewed by a qualified person before making a change, and update the relevant load information and staff instructions if the approved configuration changes.
Good new pallet racking starts with accurate load and inventory information, then balances storage density against access, equipment fit and safe movement. Compare systems against the way your warehouse handles goods, verify site and structural requirements, and agree on design assumptions before ordering. That preparation helps ensure the added capacity supports daily operations rather than creating new bottlenecks.
