VNA (Very Narrow Aisle) is a pallet-racking variant where aisle width is minimized — typically just enough for specialized trucks guided by rails or wire. The goal: keep near-Selective access to each pallet while raising density significantly.
When does VNA make sense?
- High-bay warehouses needing to optimize leased m² or construction cost
- Many SKUs that still require individual pallet access (not lot-only like Drive In)
- Businesses ready to invest in VNA trucks and operator training
Pros and cons
The standout benefit is more positions without a full move to AS/RS. Trade-offs: higher equipment CAPEX than standard reach trucks; throughput depends on truck count and maintenance schedules; repairs in narrow aisles are harder than with Selective.
Before designing VNA, Thien Khoi checks floor flatness, beam elevations, fire-system clearances and turning radii at intersections — points that often delay projects if skipped during the survey.
Need storage advice?
Share your floor plan and goods type — Thien Khoi will propose racking or AS/RS that fits your operation.
