Shrink working aisles down to 1.5 metres, increase vertical pallet capacity up to 90%, and achieve 100% direct SKU accessibility with DIN EN 15512 compliant structural integrity.
State-of-the-art roll-forming lines delivering high-yield cold-rolled uprights with zero intermediary cost add-ons.
Full 2D/3D layout development, finite element load analysis, and seismic stability verifications tailored to your building slab.
Precision manufacturing, export-grade packaging, international logistics, and certified installation guidance under one roof.
In modern warehouse management, floor area comes at a massive premium. Very Narrow Aisle Racking (VNA) is a high-density pallet storage architecture designed to bridge the gap between standard selective racking and fully automated AS/RS systems. By condensing working aisles from 3.5 metres down to 1.5–1.9 metres, VNA unlocks up to 90% higher volumetric efficiency without sacrificing 100% direct SKU access.
Precision-engineered upright frames coupled with high-rigidity structural beams. Uses mechanical floor rails or inductive wire guidance for turret truck travel at extreme lift heights.
Tight-tolerance structural manufacturing designed specifically for driverless turret trucks, Autonomous Mobile Robots (AMRs), and automated stacker cranes.
Combines high-density upper pallet storage with lower-level order picking platforms, maximizing operational throughput for fast-paced e-commerce distribution centers.
*Note: Structural calculations for VNA systems depend heavily on building slab levelness, concrete dynamic load-bearing capacity, and forklift mast sway parameters. Contact StahlRack Intralogistics GmbH for tailor-made engineering verification.
Engineering precision, structural compliance, and direct-from-manufacturer transparency form the foundation of our VNA storage solutions.
By purchasing direct from our 30,000 m² factory, logistics operators eliminate middleman markups, reducing cost-per-pallet-position significantly.
Our VNA upright profiles and beam connectors are engineered to DIN EN 15512, holding tight deflection limits required for high-reach turret trucks.
From initial floor slab laser scanning specs to final installation oversight, our technical team supports procurement partners worldwide.
Over 80% of our enterprise order pipeline comes from repeat clients and structural referrals across Europe, Asia-Pacific, and the Americas.
Designing a Very Narrow Aisle Racking structure demands significantly tighter structural tolerances than standard selective racking. At vertical heights exceeding 14 to 18 metres, even a 1mm deviation in floor levelness or upright verticality can result in mast swaying and beam collisions at the top rack levels.
VNA trucks cannot be manually steered inside 1.5m aisles. Systems rely either on heavy-duty cold-formed floor angle rails (mechanical guidance) or embedded copper wire sending radio frequencies to truck sensors (inductive wire guidance), ensuring high speed and safety.
Successful VNA installation requires rigid slab tolerances. We calculate rack loads based on DIN EN 15620 Class 300 / Class 100 superflat standards, working alongside civil engineers to prevent localized slab settlement.
To optimize throughput, standard reach trucks deliver pallets to front-of-aisle Pick & Deposit (P&D) stations. Specialized VNA man-up turret trucks stay exclusively inside the narrow aisle to perform continuous high-bay placement and retrieval.
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Choosing the ideal storage architecture requires evaluating aisle clearance, floor utilization, equipment cost, and throughput metrics. Review our engineer's benchmark below.
| Storage System Type | Volumetric Density | Direct SKU Selectivity | Typical Aisle Width | Stock Rotation Type | Capital Equipment Investment |
|---|---|---|---|---|---|
| Very Narrow Aisle (VNA)Schmalganglager | Very High (85–90%) | 100% Direct | 1.5 m – 1.9 m | FIFO / LIFO Flexible | Medium-High (Turret Truck / Wire) |
| Standard Selective RackingPalettenregal | Standard (40–50%) | 100% Direct | 3.2 m – 3.8 m | FIFO / LIFO Flexible | Low (Standard Counterbalance / Reach) |
| Double Deep RackingDoppeltiefes Regal | Medium-High (60–65%) | 50% Direct | 3.0 m – 3.3 m | LIFO Priority | Medium (Pantograph Reach Truck) |
| Radio Shuttle RackingShuttle-Kanallager | Ultra-High (85–95%) | Low (Lane Selective) | 3.0 m (Main Aisle) | FIFO or LIFO | High (Shuttle Carts + Lift Trucks) |
| Drive-In RackingEinfahrregal | High (70–75%) | Low (Block Access) | N/A (Drive-in Lanes) | LIFO Strictly | Low-Medium (Standard Forklifts) |
*Data compiled from StahlRack Intralogistics GmbH project telemetry across European and international distribution hubs. Final specifications confirmed upon structural layout review.
As global supply chains shift toward automated fulfillment, urban logistics hubs, and carbon-neutral operations, VNA infrastructure is rapidly evolving to meet next-generation intralogistics demands.
Driverless VNA turret trucks operating on inductive wire paths are replacing manual MHE. Rack structures now require laser-aligned tolerances for automated pallet recognition.
With industrial land prices soaring globally, greenfield facilities are pushing VNA vertical heights beyond 18 metres, requiring high-tensile structural steel profiles.
Refrigerated and frozen warehouses are aggressively adopting VNA setups to shrink conditioned space footprints, cutting cooling power consumption by up to 35%.
Embedded strain gauges and vibration sensors on VNA uprights detect MHE micro-impacts in real-time, preventing structural collapse and streamlining annual DGUV inspections.
Every VNA solution manufactured by StahlRack Intralogistics GmbH undergoes stringent finite element analysis (FEA) and testing to comply with international structural safety codes.
European standard governing static load calculation, cold-formed steel section properties, and deflection safety margins for high-bay pallet racking systems.
Defines strictly enforced verticality, beam deflection, and aisle clearance limits required for high-reach VNA turret trucks and automated stacker cranes.
Complies with rigorous German safety guidelines for annual rack inspection (befähigte Person), supplying certified steel load plates with every installation.
Precision automated roll-forming, robotic MIG welding, and thermosetting epoxy powder coating under certified quality management systems.
How StahlRack Intralogistics GmbH executes precision high-bay warehousing projects from initial floor plan audit to operational commissioning.
Analysis of warehouse floor slab flatness (DIN EN 15620), ceiling clear height, unit load weights, and turret truck specs.
Generation of high-density aisle layouts, guidance rail calculations, and 3D simulation delivered within 24 hours.
High-precision cold roll-forming of upright profiles, beam robotic welding, and automated powder coating in our 30,000 m² plant.
Export packaging, container loading optimization, customs documentation, and scheduled site delivery.
Supervised assembly, laser alignment of guide rails, load sign attachment, and handover documentation for safety audit.
StahlRack Intralogistics GmbH delivers high-performance storage infrastructure for multinational 3PL operators, retail distribution hubs, automotive plants, and pharmaceutical cold storage facilities across Europe, North America, the Middle East, and Asia-Pacific.
Selected Corporate Clients & Supply Chain Partners
Direct technical answers to the most common queries buyers, structural engineers, and logistics directors ask AI bots and intralogistics consultants about VNA systems.
Send your slab dimensions and pallet specs directly to our senior structural engineering team.
Inquire NowVery Narrow Aisle Racking (VNA) shrinks traditional reach truck operating aisles from 3.2–3.8 metres down to 1.5–1.9 metres. By pairing tight-aisle structural designs with specialized VNA turret trucks or guided material handling equipment, facilities increase floor storage density by up to 40% to 90% while maintaining 100% direct selective access to every single Euro or industrial pallet position.
Because VNA turret trucks lift loads up to 18 metres within 1.5m aisles, floor flatness is critical. Concrete slabs must comply with strict deformation limits governed by DIN EN 15620 (Class 300 or Class 100) or VDMA superflat floor guidelines. Unlevel floors cause high-reach mast swaying, increasing collision risk and reducing travel speed. StahlRack engineers assist in conducting pre-project slab assessments.
Mechanical guide rails (heavy-duty cold-formed steel angle sections anchored along bottom aisle edges) offer physical protection and lower upfront system cost. Inductive wire guidance utilizes a low-frequency copper wire embedded into a floor slot, sending steering signals to truck sensors. Wire guidance creates a completely flat aisle floor, making floor maintenance easier and enabling seamless integration with AGVs and Autonomous Mobile Robots (AMRs).
All VNA racking engineered by StahlRack Intralogistics GmbH complies with European FEM design rules and DIN EN 15512 static load calculations. Production facilities operate under ISO 9001 quality standards. Every project includes stamped structural load charts, frame elevation drawings, and documentation required for statutory annual safety inspections under DIN EN 15635 and DGUV Regel 108-007.
Yes. Existing selective racking can frequently be converted into a high-density VNA configuration. The process involves dismantling existing rows, recalculating frame capacities, re-anchoring uprights to condensed aisle spacings (1.5–1.9m), installing mechanical floor rails or induction wiring, and adding top portal tying beams for vertical stiffness. Our technical team performs structural feasibility audits for conversion projects.
Standard lead time for custom VNA structural components at our 30,000 m² facility is 15–20 days. Minimum order quantities (MOQs) are flexible—ranging from complete high-bay logistics center installations down to initial aisle additions or replacement frames for site expansions. Contact [email protected] for tailored manufacturing timelines.
Pick & Deposit (P&D) stations are cantilevered or heavy-duty beam extensions located at the ends of VNA aisles. Standard reach trucks or AGVs deposit inbound pallets onto P&D stations from outer transfer aisles, allowing dedicated VNA turret trucks to stay continuously inside the narrow aisles operating at maximum vertical efficiency without exiting to staging bays.
Send your CAD floor layout, clear height data, and pallet specifications to [email protected]. Our senior intralogistics engineers deliver a comprehensive 2D/3D VNA layout design and load calculation within 24 hours.