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Why Aisle Width Is Not the Only Factor
Choosing a Reach Truck for a narrow aisle warehouse starts with the warehouse layout, but aisle width alone does not determine whether a truck is suitable.
A professional selection should connect four conditions:
Pallet Size → Rack Configuration → Lift Height → Reach Truck Dimensions
A reach truck is designed for high-density indoor storage. Its baselegs and reach mechanism allow it to work closer to pallet racking than a conventional counterbalance forklift. Current manufacturer specifications show that reach truck configurations can vary substantially in capacity, battery voltage, overall width and maximum lift height.
For example, a warehouse with a 2.7 m aisle may appear suitable for a narrow-aisle forklift. However, if the pallets are oversized or the rack layout requires additional maneuvering clearance, the actual operating requirement may be greater.
Therefore, Lemo recommends starting with the complete handling condition, rather than selecting a truck from the aisle width alone.
Match the Reach Truck to Your Pallet and Rack
The pallet is one of the most important inputs for Reach Truck selection.
Before ordering, buyers should confirm:
Pallet length and width
Maximum pallet weight
Load center
Rack depth
Rack beam height
Single-deep or double-deep storage
Required fork length
Maximum fork height
Consider a warehouse using 1,200 × 1,000 mm pallets with high-bay selective racking. If the customer changes to a wider pallet while keeping the same aisle width, the original truck configuration may no longer provide sufficient maneuvering clearance.
This is why Lemo does not treat a Reach Truck as a standard-size product. Fork dimensions, reach configuration and operating clearance should be evaluated together with the warehouse rack.
Check Load Capacity at the Required Lift Height
One of the most common purchasing mistakes is selecting a Reach Truck only by its advertised capacity.
For example, a buyer may request a 2,000 kg Reach Truck because the heaviest pallet weighs 2,000 kg. But the real question is:
Can the truck safely handle 2,000 kg at the required lifting height and load center?
As lift height increases, the working capacity can differ from the nominal rated capacity. Load center, mast configuration and attachments can also affect the available capacity.
Suppose two warehouses both handle 1,800 kg pallets:
Warehouse A stores pallets at 3 m.
Warehouse B stores pallets at 9 m.
The nominal pallet weight is identical, but the truck configuration cannot automatically be assumed to be identical.
Lemo therefore recommends confirming the maximum load, load center, required lift height and capacity chart before selecting the model.
This approach is particularly important for high-bay applications, where the customer is using vertical space to increase storage density.
Calculate the Working Aisle, Not Just Truck Width
The phrase "narrow aisle" can be misleading.
A forklift being physically narrow does not automatically mean it can efficiently operate in a specific aisle. The calculation must consider the truck, pallet and required maneuvering clearance.
A simplified selection logic is:
Truck Head Length + Load Length + Required Clearance = Working Aisle Requirement
Actual aisle calculations depend on the stacking method and truck configuration. Toyota's published reach truck specifications, for example, calculate right-angle stacking aisle requirements according to load dimensions and clearance, and recommend additional clearance when easier maneuvering and throughput are required.
Example
Imagine a customer has:
1,200 mm pallet length
1,000 mm pallet width
2.8 m nominal aisle
High-bay rack
Frequent pallet put-away
The correct question is not simply:
"Can the Reach Truck fit into a 2.8 m aisle?"
The better question is:
"Can this specific Reach Truck safely enter, turn, reach the rack and retrieve this pallet within the available aisle?"
That distinction matters because reducing aisle width may increase storage density, but insufficient operating clearance can reduce maneuverability and productivity.
Current industry guidance also distinguishes standard narrow aisles from very narrow aisles; specialized VNA equipment may be more appropriate when aisles become significantly tighter than typical Reach Truck applications.
Choose the Battery for the Actual Duty Cycle
Battery selection should follow the warehouse's operating pattern.
A buyer should provide:
Daily operating hours
Number of shifts
Travel frequency
Lifting frequency
Average load
Charging opportunities
Indoor temperature
Required uptime
For example, an 8-hour single-shift warehouse and a 20-hour multi-shift distribution center should not automatically use the same battery configuration.
For high-frequency operations, battery capacity, charging strategy and maintenance requirements can directly affect equipment availability.
Lemo can evaluate the duty cycle before recommending the battery system, rather than selecting the battery simply from a nominal voltage or amp-hour figure.
Lemo's Approach to Reach Truck Configuration
As a Reach Truck manufacturer, Lemo can approach narrow-aisle projects from the warehouse conditions backward.
The technical evaluation can start with:
Pallet → Load → Rack → Aisle → Lift Height → Working Hours → Battery → Truck Configuration
For example, if a buyer provides:
1,500 kg maximum load + 1,200 × 1,000 mm pallet + 8 m rack height + 2.8 m aisle + two shifts/day
Lemo can use these parameters to evaluate the appropriate:
Load capacity
Mast configuration
Lift height
Fork dimensions
Reach mechanism
Battery specification
Operating configuration
The objective is not simply to supply a Reach Truck with a particular tonnage. It is to make sure the equipment is compatible with the actual warehouse geometry and handling cycle.
For buyers planning a new warehouse or upgrading an existing high-density storage system, this engineering approach can also help identify whether a conventional Reach Truck, double-reach configuration or a more specialized narrow-aisle solution is appropriate.
Conclusion
A suitable Reach Truck for a narrow aisle warehouse should be selected from the complete operating condition-not from truck width or rated capacity alone.
The key variables are:
Aisle Width + Pallet Size + Load Center + Lift Height + Rack Design + Duty Cycle
When these parameters are defined before purchasing, the buyer can compare Reach Truck models on actual operating requirements rather than catalogue specifications alone. This is the approach Lemo uses to support customized Reach Truck configuration for high-density warehouse applications.
