Narrow Aisle and Wide Aisle lift trucks are classed due to the types of aisles they have been designed to operate in. These machines can turn in an aisle, while Very Narrow Aisle trucks really don't turn in the aisle. There are some aisle widths to consider with different units.
Very Narrow Aisle or VNA trucks work in less than 6 feet areas and often use specific guidance systems such as wire, optical or rail systems in order to travel within the aisles. Several different models of VNA trucks consist of Turret Trucks, Swing Masts and Order Selectors. These are popular kinds in compact retail areas and in some storage and warehouse situations.
Narrow Aisle trucks can operate in aisles from 8 feet to 10 feet wide. Usually these are stand-up models like Reach Trucks. They are often used in storage facilities and warehouses.
The wide aisle forklift is designed to work in aisles more than 8 feet to 10 feet.
The stand-up ergonomics include "Ergomat" padding with a sloped floorboard that is made to reduce operator exhaustion by absorbing vibration. The compartment for the driver is spacious and has an 8" low step height that helps reduce overall body fatigue by easing frequent entry and exit. The unit consists of polyurethane steer tires to absorb shocks and vibration caused by uneven floor in order to enable smooth traveling. For additional comfort, there is a floor mat and a cushioned armrest together with a backrest designed to help keep operators comfortable and therefore more effective while limiting exhaustion.