How to Prepare Palletised Freight for Air Transport: Securing, Measuring, and Documentation Requirements

Premier Global Logistics

·November 7, 2025

·6 min read

What Are Modern Industrial Supply Chain Systems in Manufacturing — Image Source: pexels

Preparing palletised freight for air transport requires careful planning. Unlike ordinary ground shipments, air cargo is subject to strict limitations involving weight, dimensions, packaging, security, documentation, and aircraft compatibility.

A pallet that looks stable inside a warehouse may still require modification before an airline or air cargo handling facility will accept it. Incorrect measurements, insufficient securing, inconsistent paperwork, or unsuitable packaging can lead to repacking, additional charges, delays, or rejection.

The good news is that most problems can be prevented before the shipment leaves the warehouse.

This guide explains how to prepare palletised freight for air transportation, including pallet selection, cargo arrangement, securing techniques, measurement procedures, weight calculations, labeling, and documentation.

Step 1: Confirm the Air Freight Requirements

Before building the pallet, determine the requirements for the specific transportation route.

Requirements can vary according to:

· Airline

· Aircraft type

· Origin airport

· Destination airport

· Cargo type

· Shipment weight

· Cargo dimensions

· Security requirements

· Special handling requirements

Do not assume that a pallet configuration accepted on one route will automatically be accepted on another.

The first step should therefore be contacting the freight forwarder, carrier, or handling provider to confirm the applicable requirements.

Step 2: Select the Right Pallet

The pallet provides the structural foundation of the shipment.

Common pallet materials include wood, plastic, and composite materials.

Wooden pallets may require compliance with international phytosanitary requirements when used in international trade. Where applicable, wood packaging may need to meet the requirements associated with ISPM 15 treatment and marking.

The pallet should be strong enough to support the cargo without excessive bending, cracking, or deformation.

Inspect the pallet before loading.

Do not use pallets with:

· Broken boards

· Protruding nails

· Significant structural damage

· Excessive moisture

· Contamination

· Unstable supports

For air freight, also confirm that the pallet dimensions are compatible with the intended transportation method.

Step 3: Inspect and Prepare the Cargo

Every package should be inspected before palletisation.

Check for:

· Damaged cartons

· Weak seams

· Missing labels

· Exposed products

· Poor internal cushioning

· Signs of moisture

· Incorrect package counts

Palletisation should not be used to hide damaged packaging.

If a carton is already weak, stacking additional weight on it can increase the probability of failure during transportation.

Fragile products may require additional internal protection before they are consolidated.

Key Components of the Manufacturing Supply Chain — Image Source: unsplash

Step 4: Arrange Cargo for Stability

Cargo should be arranged so that the pallet remains stable.

Whenever practical, heavier packages should be placed toward the bottom, while lighter or more fragile packages should be placed above them.

The cargo should also be distributed across the pallet rather than concentrated on one side.

Avoid creating a tall, narrow stack when a wider and more stable arrangement is possible.

Interlocking cartons can sometimes improve stability, although the appropriate stacking method depends on the packaging design.

Do not automatically interlock cartons if doing so could crush boxes or compromise product protection.

Step 5: Avoid Excessive Overhang

Cargo should generally remain within the pallet footprint unless the carrier specifically permits an overhang.

Overhanging cartons can be exposed to impacts from forklifts and other equipment.

They can also increase the effective dimensions of the shipment.

This matters because air freight pricing and aircraft loading decisions can depend heavily on dimensional measurements.

A shipment that appears to fit the pallet may become oversized after cartons extend beyond its edges.

Step 6: Protect the Cargo Before Wrapping

Stretch film is useful, but it should not be treated as the entire securing system.

Depending on the cargo, additional materials may include:

· Plastic or steel strapping

· Corner boards

· Edge protectors

· Anti-slip sheets

· Banding

· Shrink film

· Protective covers

· Dunnage

The goal is to create a stable handling unit.

For irregularly shaped cargo, additional blocking or bracing may be necessary.

The appropriate securing method depends on the cargo’s weight, shape, packaging, and handling requirements.

Step 7: Secure the Pallet Properly

Once the cargo is arranged, secure it to the pallet.

Stretch wrapping can help keep cartons together and protect them from dirt and light moisture exposure.

Strapping can provide additional mechanical restraint.

For heavier shipments, straps may be particularly useful because the cargo can exert substantial forces during handling.

Corner protection should be used when straps could damage cartons or compress the cargo.

The finished pallet should not wobble significantly when handled normally.

However, do not perform unsafe manual tests simply to see whether a pallet moves. Proper securing should be based on appropriate packaging and handling procedures.

Step 8: Measure the Finished Pallet

This is one of the most important steps.

Do not measure the pallet before loading and assume the final shipment has the same dimensions.

Measure the completed handling unit.

Record:

· Length

· Width

· Height

· Gross weight

· Number of pieces

Measure the maximum external dimensions, including packaging and securing materials where applicable.

If the cargo has an unusual shape, measure the greatest overall dimensions.

For example, if one corner of the cargo extends farther than the rest of the pallet, that extension needs to be considered when determining the overall dimensions.

Technology Integration — Image Source: unsplash

Step 9: Weigh the Entire Shipment

The gross weight should reflect the complete shipment unit.

This normally includes the cargo, packaging, pallet, and securing materials.

A basic calculation is:

Gross Weight = Cargo Weight + Packaging + Pallet + Securing Materials

Accurate weight information is important for both pricing and transportation safety.

Incorrect weight can result in billing adjustments or operational problems.

Step 10: Understand Dimensional Weight

Air freight commonly considers dimensional weight because aircraft capacity is limited not only by mass but also by physical space.

Dimensional weight converts volume into a theoretical weight for pricing purposes.

The exact calculation depends on the carrier and applicable industry rules.

A simplified concept is:

Dimensional Weight = Length × Width × Height ÷ Applicable Dimensional Factor

The relevant unit system and dimensional factor must be confirmed with the carrier.

Because different carriers and transportation arrangements can use different factors, shippers should not rely on a generic online calculator without verifying the applicable rate.

Step 11: Check the Center of Gravity

The distribution of weight across the pallet matters.

A pallet with a significantly uneven center of gravity may be difficult to handle safely.

Heavy machinery, dense components, or other concentrated cargos require particular attention.

If most of the weight is positioned toward one side, the pallet may become unstable when lifted.

The cargo should therefore be arranged to distribute weight as evenly as reasonably possible.

Step 12: Apply Correct Labels

Labels should be visible after wrapping.

Depending on the shipment, labels may include:

· Shipment identification

· Air waybill number

· Destination

· Piece count

· Gross weight

· Handling instructions

· Orientation markings

· Special cargo markings

If labels are placed on cartons before palletisation, verify that they remain visible or that pallet-level identification is also provided.

Do not place labels where straps or stretch film can obscure important information.

Step 13: Prepare the Documentation

Palletised air freight may require several documents.

Common documentation includes:

Air Waybill

The air waybill provides key transportation information and identifies the shipment.

Commercial Invoice

The commercial invoice generally provides information about the seller, buyer, products, values, and transaction.

Packing List

The packing list explains how the cargo is packaged and can include carton counts, dimensions, weights, and product details.

Customs Information

International shipments require information necessary for customs processing.

Special Cargo Documentation

Certain cargo categories may require additional declarations or supporting documentation.

The exact requirements depend on the cargo and destination.

Step 14: Check Dangerous Goods Requirements

Dangerous goods require special attention.

Products such as lithium batteries, chemicals, aerosols, flammable materials, and other regulated articles may be subject to specialized air transportation rules.

The shipment may require:

· Approved packaging

· Specific labels

· Hazard markings

· Documentation

· Quantity limitations

· Carrier approval

· Special handling

Never assume that an item is acceptable for air transportation simply because it can legally be transported by truck.

Air transportation has its own safety framework.

Step 15: Consider Customs Requirements

For international shipments, customs documentation should be prepared before departure whenever possible.

Cargo descriptions should be specific enough to identify the products.

For example, “machine parts” may be less useful than a detailed description identifying the actual product and its intended use.

Product classification, country of origin, declared value, and other information may affect customs processing.

Inconsistent information between the commercial invoice, packing list, and physical shipment can create additional questions.

Step 16: Photograph the Completed Pallet

Taking photographs before pickup can be a useful internal control.

Photographs can document:

· Overall pallet condition

· Cargo arrangement

· Labels

· Securing methods

· Visible packaging condition

Photos do not replace formal inspection or documentation, but they can provide a useful record of how the shipment was prepared.

Common Preparation Errors

Several mistakes can easily be avoided.

Measuring Before Wrapping

The final dimensions may change after securing materials are added.

Using Weak Packaging

A pallet cannot compensate for a carton that is structurally inadequate.

Incorrect Weight

Forgetting the pallet or packaging can result in inaccurate gross weight.

Covered Labels

Wrapping can make important information unreadable.

Insufficient Securing

Heavy cargo needs more than cosmetic wrapping.

Incorrect Cargo Description

Vague descriptions can complicate customs processing.

Ignoring Special Cargo Rules

Batteries, chemicals, perishables, and other special cargos may have additional requirements.

Final Pallet Preparation Checklist

Before the shipment leaves the warehouse, verify:

☐ Pallet is structurally sound

☐ Cartons are undamaged

☐ Cargo is evenly distributed

☐ Heavy cargos are appropriately positioned

☐ Cargo does not exceed permitted dimensions

☐ Cargo is properly wrapped

☐ Strapping or other securing is adequate

☐ Labels are visible

☐ Gross weight is accurate

☐ Final dimensions are recorded

☐ Air waybill information is correct

☐ Commercial invoice is complete

☐ Packing list is accurate

☐ Customs information is ready

☐ Special cargo requirements are satisfied

☐ Carrier requirements have been confirmed

Conclusion

Preparing palletised freight for air transport is a combination of packaging, measurement, cargo securing, documentation, and regulatory compliance.

The most important principle is simple: prepare the shipment according to the requirements of the actual route and carrier, not according to assumptions based on previous shipments.

A stable pallet with accurate measurements and complete documentation is far more likely to move smoothly through the air cargo network.

Taking a few additional minutes to inspect, measure, weigh, label, and document the finished pallet can prevent much larger problems later. In logistics, that small amount of preparation is usually cheaper than discovering at the airport that your beautifully wrapped pallet has become an extremely expensive rectangle that nobody wants.