VNA, or Very Narrow Aisle, is a warehouse storage solution designed to maximise capacity by reducing the aisle space between racking. Instead of wide aisles for conventional forklifts, VNA aisles can be as narrow as 1.5 to 2 metres, allowing more racks and higher density storage within the same footprint.

However, the limited space makes movement within these tighter aisles possible only with specialised trucks, guided with precision to operate safely and efficiently.

How VNA Guidance Works

Unlike standard forklifts that move freely, VNA trucks follow a guidance system installed directly into the warehouse floor. This system ensures the trucks remain perfectly aligned within the aisles, reducing the risk of collisions with racks while enabling operators to move confidently in tight spaces.

The guidance system is typically made possible through:

• Groove Cutting & Wiring: A shallow groove is cut into the warehouse floor to insert guidance wiring, which generates a magnetic field for the truck sensors to follow. The groove is then sealed with epoxy or other suitable finishing to protect the wiring and maintain a smooth surface.
• Magnets: Holes are cored into the floor, and magnets are placed at key locations, also sealed with epoxy or other suitable finishing. These magnets act as position markers for the trucks, further enhancing navigation accuracy.

Together, the wiring and magnets create a seamless guidance path for VNA trucks, allowing them to operate efficiently within the very narrow aisles.

Why Preparation Matters

The success of a VNA system relies on the execution of the guidance system. From cutting precise grooves to positioning magnets accurately, every step needs to be carried out with planning and care.

Proper preparation and precise execution make a difference between a VNA system that works smoothly from day one, and one that faces costly adjustments later. Good planning ensures the system aligns with the warehouse design, while professional execution ensures durability and accuracy in day-to-day operations. With the right groundwork, businesses can unlock higher capacity, safer operations, and a system built for long-term performance.