Best Practices for Packing Large and Heavy Shipments

For shipments weighing 50 kg and above, these considerations become even more important. Solutions such as DHL Heavy Weight Express are designed specifically for larger, heavier shipments, combining specialist handling with the speed and reliability of an integrated express network.

But even the most capable shipping service depends on one thing: preparing your shipment correctly. Poor packing is one of the most common causes of damage, delays, unexpected surcharges, and shipment claims. 

If you're wondering how to pack large and heavy shipments correctly, this guide will walk you through everything you need to know. From choosing the right pallet and securing palletized goods to using dunnage, labeling correctly, and avoiding common mistakes, we'll help you prepare your shipment for a smoother journey.

What qualifies as a large or palletized shipment?

Not every shipment belongs in a standard parcel network. As goods become larger, heavier, or more complex to handle, businesses often need different packaging and transportation methods to keep them secure in transit.

What Qualifies as a Large or Palletized Shipment?

Large shipments

Large shipments are goods whose size makes them unsuitable for standard parcel delivery. Common examples include furniture, industrial equipment, machinery, exhibition displays, and oversized spare parts.

As a general guideline, DHL Express considers a shipment oversized when two dimensions exceed 800 mm or one dimension exceeds 1,200 mm.

Heavy shipments

Heavy shipments are individual items that exceed the weight limits of standard parcel services and require specialist handling. In most cases, items weighing more than 30 kg require lifting equipment or additional support during handling.

For international heavy shipments from 50 kg to 3,000 kg, DHL Heavy Weight Express provides a dedicated solution, supporting individual palletized pieces weighing up to 1,000 kg.

Palletized shipments

Palletized shipping is one of the safest and most efficient ways to transport large or heavy goods internationally. By securing multiple boxes or bulky items onto a pallet, businesses improve handling efficiency, reduce the risk of damage, and make shipments easier to load, move, and deliver.

When should you use palletized shipping?

Palletized shipping is recommended when you are:

• Shipping multiple boxes to the same destination
• Transporting large, heavy, or oversized goods
• Shipping fragile or high-value products that require extra stability
• Moving irregularly shaped items that are difficult to handle individually
• Sending loads that are too heavy for manual handling

DHL Heavy Weight Express is designed specifically for international palletized shipping, supporting shipments from 50 kg up to 3,000 kg, with individual palletized pieces weighing up to 1,000 kg. It combines the speed of express delivery with the capability to transport heavy freight safely and efficiently.

The challenges of shipping large and palletized goods

Shipping a palletized load isn't simply a bigger version of parcel shipping. Larger shipments face additional handling, compliance, and transportation challenges that can affect costs and transit times.

Common challenges include:

• Higher damage risk due to weight, movement, and interactions with forklifts and handling equipment
• Stricter handling requirements, including load stability, pallet compliance, and forklift access
• Additional costs and surcharges for overweight, oversized, or non-stackable shipments
• Customs requirements, such as ISPM-15-compliant wood pallets for international exports
• Delays caused by unstable loads, incorrect dimensions, or non-compliant packaging

Getting the packing right isn't just about protecting your goods. It's an important part of keeping shipments compliant, controlling costs, and ensuring a smoother delivery experience for your customers.

Why correct packing matters for large shipments

Shipment safety and damage prevention

Proper packing helps protect goods from the bumps, vibrations, and repeated handling they experience throughout transit.

Cost control

Poor packing can lead to surcharges, re-handling fees, replacement costs, and even rejected shipments.

Transit times and delays

Unstable loads or non-compliant pallets are more likely to be held, reworked, or delayed during transport and customs clearance.

Customer experience

Goods that arrive on time and in good condition help build trust, while damaged deliveries can lead to claims, returns, and lost business.

Choosing the Right Pallet

A strong, suitable pallet is the foundation of safe palletized shipping. Choosing the right pallet improves load stability, helps prevent damage during transport, and ensures your shipment meets international shipping requirements.

Pallet materials

Wooden pallets are the most widely used option for international pallet shipping. They are durable, reusable, and suitable for transporting heavy goods. For international exports, wooden pallets must be ISPM 15 heat-treated and certified.

Plastic pallets are lightweight, water-resistant, and easy to clean, making them ideal for industries such as food, pharmaceuticals, and healthcare. Unlike wooden pallets, they do not require ISPM 15 treatment.

Cardboard and composite pallets offer a lightweight solution for one-way shipments and export logistics, although they are generally recommended for lighter loads.

Pallet size and weight capacity

The most common pallet sizes include the EUR pallet (1,200 × 800 mm) and the North American pallet (48 × 40 inches).

DHL Heavy Weight Express supports palletized shipments with individual palletized pieces weighing up to 1,000 kg and maximum dimensions of 300 × 200 × 160 cm. Four-way entry pallets are recommended, as they allow safer and more efficient forklift handling.

Check the pallet before shipping

Before loading your shipment, inspect the pallet carefully for cracked boards, loose deck planks, protruding nails, or any other signs of damage that could compromise load stability.

If you're using a wooden pallet for international shipping, ensure the ISPM 15 certification stamp is clearly visible, as this is required for customs compliance in many countries.

How you stack a pallet can have a major impact on its stability during transit.

Distribute weight evenly

Place heavier items at the bottom of the pallet and lighter items on top. This keeps the center of gravity low and reduces the risk of the load shifting or tipping during handling.

Use the right stacking pattern

Column stacking works best when boxes are the same size, while interlocking stacking can add stability to mixed loads. Avoid pyramid stacking, which reduces load strength and can make shipments non-stackable.

Avoid overhang

Goods should never extend beyond the pallet edge. Overhang increases the risk of damage from forklifts, racking systems, and other freight during transit.

A well-balanced pallet is safer to handle and less likely to incur damage, delays, or additional charges.

Secure Your Palletized Shipment Properly

Even a perfectly stacked pallet can become unstable if the load is not secured correctly. Proper load securing is essential for safe palletized shipping, helping prevent movement, damage, and delays during transport.

Stretch wrap

Wrap the shipment from the base of the pallet upward, making sure the stretch film also covers the pallet to anchor the load securely. Apply at least three complete wraps around both the bottom and top of the pallet, maintaining enough tension to keep the shipment stable throughout transit.

Strapping and banding

For heavy shipments, use heavy-duty plastic or steel straps to secure the load to the pallet. At least two straps should run perpendicular to the pallet base, while taller or heavier loads should also be cross-strapped to improve stability during handling and transportation.

Corner boards and edge protectors

Install corner boards or edge protectors before applying straps. They distribute pressure evenly, help prevent strap damage, and provide additional protection for boxes and packaging during loading, unloading, and transit.

Why proper load securing matters

Correctly securing a palletized shipment is one of the most important steps in preparing goods for international shipping. Loose or unstable loads are among the leading causes of damage during transport and can result in additional handling costs, delivery delays, or rejected shipments. Using the right wrapping, strapping, and protective materials helps ensure your shipment arrives safely and intact.

The pallet provides stability, but the right packaging materials help protect the goods themselves.

Use:

• Double- or triple-walled corrugated boxes for heavy or fragile items
• Foam inserts, bubble wrap, air pillows, or packing peanuts to cushion products and absorb shock
• The H-taping method to seal all box seams and strengthen cartons
• Custom foam inserts or wooden crating for high-value, delicate, or irregularly shaped goods

The more valuable or fragile the shipment, the more important internal protection becomes.

What is dunnage and why it matters

What is dunnage?

Dunnage is any material used to protect, separate, and stabilize cargo during transit. It fills empty space, reduces movement, and helps keep goods secure inside a pallet, container, or crate.

Common examples include inflatable airbags, foam blocks, wooden bracing, kraft paper, and corrugated inserts.

Why dunnage matters

Even a well-packed pallet can be damaged if products are able to shift during transport. Dunnage helps absorb shock and vibration, fills voids between items, and prevents cargo from moving when the shipment is handled, loaded, or transported.

Think of it as an extra layer of protection. While packaging protects the product itself, dunnage helps keep the entire load stable.

Types of dunnage and when to use each

• Inflatable airbags (dunnage bags): Use to fill gaps between pallets or inside containers.
• Foam dunnage: Use around fragile goods that need shock absorption.
• Wooden bracing: Use for heavy machinery, crates, and irregularly shaped cargo.
• Kraft paper or corrugated inserts: Use as lightweight void fill for lighter shipments.
• Edge protectors and bracing boards: Use to reinforce stacked boxes and prevent strap damage.

The right dunnage can significantly reduce the risk of in-transit damage.

Clear labeling helps keep your shipment moving through the network without unnecessary delays.

• Attach shipping labels and handling markings to all sides and the top of the pallet
• Include instructions such as FRAGILE, THIS WAY UP, or DO NOT STACK where appropriate
• Ensure barcodes remain visible and are not obscured by stretch wrap
• For multi-pallet shipments, label each pallet clearly (for example, 1 of 3, 2 of 3, 3 of 3)
• For international shipments, ensure commercial invoices and waybills are complete and accurate. Incomplete or incorrect documentation remains one of the most common causes of customs delays.

Common packing errors to avoid

Even experienced shippers can make mistakes when preparing large or palletized loads. Watch out for these common issues:

• Overloading pallets beyond the carrier's weight limits
• Uneven stacking or pyramid stacking, which reduces stability
• Insufficient securing, such as under-wrapped or un-strapped loads
• Incorrect labeling, including missing handling instructions or obscured barcodes
• Using damaged pallets or non-ISPM-15-compliant wood pallets for international shipments
• Ignoring dunnage, allowing goods to shift during transit

Avoiding these mistakes can help reduce damage and keep your shipping costs under control.

Ship Large and Palletized Goods from Romania with DHL Heavy Weight Express

Once your shipment is packed and ready for dispatch, you need a shipping solution designed specifically for large, heavy, and palletized shipments.

DHL Heavy Weight Express helps businesses in Romania ship heavy freight quickly and reliably to international destinations. Designed for shipments weighing 50 kg to 3,000 kg, the service combines the speed of DHL Express with the capability to transport palletized freight, supporting individual palletized pieces weighing up to 1,000 kg.

Whether you're exporting industrial machinery, automotive components, manufacturing equipment, medical devices, or other time-critical goods, DHL Heavy Weight Express provides a fast, secure, and fully managed international shipping solution.

Why businesses in Romania choose DHL Heavy Weight Express

Global network and reliable international shipping

Ship to more than 220 countries and territories through DHL's fully integrated global network of aircraft, logistics hubs, customs specialists, and last-mile delivery services. Unlike traditional freight solutions involving multiple carriers, your shipment remains within one coordinated DHL network from collection in Romania to final delivery.

Dedicated Heavy Weight specialists

Every shipment is proactively monitored by dedicated Heavy Weight Priority Desk specialists who provide a single point of contact and respond quickly to any issues, helping keep critical deliveries on schedule.

Transparent door-to-door pricing

Benefit from predictable, all-inclusive pricing that covers transportation, customs brokerage, and shipment handling. With no hidden costs, businesses shipping large and palletized goods internationally from Romania gain greater visibility and cost control.

Fast delivery for heavy shipments

DHL Heavy Weight Express combines the speed of express international shipping with the capability to transport heavy freight, helping businesses reduce transit times while maintaining full shipment visibility from pickup to delivery.