If you have hired and fired managers, repaired your machines over and over, and are still stuck in a logistics kerfuffle, you are ignoring a solution that is staring you in the face. 

One of the most revolutionary alternatives to regular equipment that you should consider is a VNA system. Very Narrow Aisle pallet racking is more than just a compact alternative to standard pallet racking. It is a carefully designed system that is intended to maximize storage capacity in a given area. However, it is a system that is highly dependent on proper design and implementation.

This guide will focus on the process of properly procuring and installing a system that is right for your needs and your facility.

Start with a Thorough Site Analysis

Before you even begin to contact suppliers, it is essential that you perform a thorough site analysis. Procuring a system without a clear understanding of your needs is simply a recipe for compromise. The following points should all be considered during your site analysis- internal height to eaves, span between columns, floor slab condition and flatness, fire protection layout, present and future pallet traffic and SKU mix and turn rates. 

In the case of VNA installations, floor tolerances become a critical issue. When operating in narrow aisles, precise guidance systems are used. Identifying and correcting any floor slab issues at the very beginning of the project is supremely important. 

List Operational Requirements

These are some of the questions to keep in mind when procuring racking systems:

1. Is density your overriding concern?
2. Do you need immediate access to all pallets?
3. Is your product mix stable or seasonal?
4. Will automation be added at a later date?

In smaller or more expensive facilities, density may be the overriding concern, making Very Narrow Aisle systems highly desirable. In other cases, where rapid access to a wide range of SKUs is required, selective pallet racking may be more desirable.

Understand the Available System Options

Industrial racking is not a standard solution. The main types of racking will normally comprise:

• Adjustable Pallet Racking

Offers direct access to pallets and is the most popular type. It is flexible but may require more aisle space. 

• Very Narrow Aisle Racking

Reduces aisle space significantly, allowing more pallet positions in the same area. Requires special lift trucks and routing, but can provide enormous gains in cubic storage capacity, which is a huge advantage. 

• High-Density Storage

Deep-lane or block storage systems, which sacrifice selectivity but maximize storage efficiency for certain item types.

In most cases, the best solution will integrate two or more systems. For instance, VNA systems for fast-moving products, together with high-density storage blocks for bulk products. The procurement goal is not to purchase a product. It is to create a storage solution environment.

Write a Precise Technical Specification

When preparing a request for quotation, avoid vague language. Technical specifications minimize misunderstandings and improve cost management. Your technical specification should include the following as a must- load-bearing capacity per level of beams, maximum bay load, frame height and depth, beam spacing increments, surface finish specifications, compliance requirements, safety accessories

In VNA systems, you should specify whether the system will be rail-guided or wire-guided. This affects both the installation process and later maintenance requirements. Technical precision in the tender process eliminates potential conflicts during the installation process.

Assess Engineering Competence, Not Just Price

The lowest price quotation is not necessarily the best value. Evaluations of suppliers should be made on the basis of these following metrics- engineering support capability, transparency of structural calculations, installation experience, health and safety procedures, after-sales and inspection services

A competent supplier will analyze your data, point out structural issues, and suggest improvements. A purely commercial supplier will simply price your project without analysis, which must in all cases be avoided. 

Structural Calculations

Every drive in racking system must be designed to resist static and dynamic loads.

Technical calculations should include- limitations of beam deflection, upright compression forces, anchor pull-out resistance, seismic loads, and floor slab strength. 

In Very Narrow Aisle applications, the margin of error is small and load concentrations are greater. Even slight deviations from vertical alignment can jeopardize safe operation which is why engineering analysis is not an afterthought, and is instead the foundation of safe installation.

Installation- the Complete Guide 

Installation must be done in a logical sequence, especially in operational environments, where staged installations are important. You must consider the following: 

1. Work zone isolation and clearance
2. Temporary relocation of stock
3. Coordination of lift equipment delivery
4. Installation timing around operational downtime

In VNA applications, guidance columns are sometimes installed before final rack positioning to ensure accurate dimensional alignment. This is not typical of standard racking systems and should be factored into project planning.

During the installation process, it is essential to:

1. Level and shim uprights correctly
2. Install anchors according to torque specifications
3. Secure beam connectors fully
4. Install row spacers correctly
5. Verify aisle widths according to design plans

For VNA systems, guidance tracks or wires must be precisely aligned with rack surfaces, because misalignment may impact the accuracy of truck positioning.

Incorporating Safety Accessories

A properly acquired system should incorporate safety accessories. Definitely give a thorough look at the following: 

1. Column guards at aisle entrances
2. End-of-aisle protection
3. Pallet stops
4. Mesh panels for infill protection
5. Load signs

Watching out for these pre-emptively not only saves you a pretty penny and time, it also prevents your staff from losing a finger or two and removes the fear of a hefty lawsuit from your head as well!

Commissioning and Handover

After completion of the installation process, demand commissioning. A thorough commissioning involves without fail: 

1. Structural acceptance
2. Load signs attached
3. As-built documentation supplied
4. Operator training provided
5. Maintenance instructions issued

In VNA storage systems, operator training is critical. Narrow aisle forklift operation requires precise driving and rigid adherence to procedural controls. Acceptance documentation safeguards both compliance and system continuity.

Maintenance and Ongoing Inspection

In procurement, lifecycle management should be factored. To become a highly-skilled procurement person, you must create a schedule to inspect:

1. Upright damage
2. Beam deflection
3. Anchor integrity
4. Guidance system alignment

Conclusion- Future-Proofing Your Investment

Finally, you must ensure that all these undertakings are not time-limited. To ensure that your procurement is done with utmost longevity in mind, ask yourself these questions before forking over a single penny:

1. Will your product volumes grow?
2. Will your SKU mix change?
3. Will automation be implemented?
4. Will a mezzanine system be added?

Future-proofing your industrial racking system will save you from early replacement costs. In some instances, designing your uprights to support a higher height than you need will provide flexibility for future expansion without having to re-engineer your structure.