Security and Operational Risk Analysis in Narrow Aisle (VNA) Storage Systems

March 2026 · NexGen Barrier Engineering Team

Security and Operational Risk Analysis in Narrow Aisle (VNA) Storage Systems

Narrow Aisle (VNA) storage systems maximize warehouse cube utilization by reducing aisle widths to as little as 1.6 meters. This density comes with elevated safety risks: very narrow passages, high-mast forklifts operating at speed, and limited margin for error when vehicles approach racking systems.

Impact protection in VNA environments requires barriers engineered for the specific dynamics of VNA forklift operation — higher speeds in confined spaces, greater kinetic energy at impact, and critical protection of rack uprights that support the entire storage system.

RackFort™ and rack end barrier systems from NexGen are specifically designed for rack leg and aisle-end protection. PAS 13 tested impact absorption prevents rack collapse from forklift strikes, protecting both stored inventory and the structural integrity of the racking system.

Pedestrian barriers are equally critical in VNA facilities where pickers and equipment operators share limited space. PolyCore™ pedestrian barriers create defined walkways with high-visibility yellow profiles that remain visible even in dimly lit warehouse aisles.

A comprehensive VNA safety assessment should evaluate: aisle width and forklift turning radius, rack end protection requirements, pedestrian route definition, charging station placement, and emergency egress paths. NexGen provides free site assessments for VNA facilities.

Questions about barrier safety?

Our engineering team can help you apply these insights to your facility.