Shipping pallets are often seen as the backbone of global trade. Though compact in size, they simplify handling, prevent cargo damage, and make every shipment more efficient.
In international logistics, few things are as important as the humble pallet. Slim yet mighty, it quietly carries the weight of global trade – over 80% of it, in fact. Neatly stacked in containers, palletized freight is easy to handle, safe for people and goods alike.
And while it might look like basic math, stacking the right number of pallets has a big impact; it’s where efficient shipping really takes off.
At a Glance: Container Capacity By Pallet Type
- 20ft Containers – hold 10 to 11 pallets, depending on pallet type and cargo.
- 40ft Containers – hold 20 to 24 pallets, depending on pallet size and loading technique.
- Standard Pallet Size (U.S.) – 48″ x 40″ / 1,219 mm x 1,016 mm (L/W)
- Euro Pallet Size – 47.2″ × 31.5″ / 1,200 mm × 800 mm (L/W)
You can fit between 10 and 24 pallets in a 20ft to 40ft ocean shipping container (single stacked).
This range applies to standard dry and reefer containers used for FCL and LCL shipments.
With that in mind, let’s take a closer look at how pallet capacity differs across container types and sizes.
How Many Pallets Fit In A 20 Foot Container?
A 20-foot container can typically hold:
- 10 standard U.S. pallets (also known as GMA pallets), single stacked.
- 11 EUR-pallets, single stacked.
The 20-foot container pallet capacity is suitable for most general goods.
Thanks to its versatility, the 20ft container is widely used in global logistics. Freight forwarders and exporters often prefer it for smaller FCL shipments or for routes where container rollover risk is higher due to congestion.
But many businesses also rely on 20ft when they need to ship a pallet quickly and securely, at lower costs and faster turnaround times.
Standard 20ft Container Dimensions
The internal dimensions of a standard 20-foot container are approximately 19’4” x 7’9” x 7’10” or 5.89 m (L) x 2.36 m (W) x 2.39 m (H).
How Many Pallets Fit In A 40ft Container?
A standard 40 foot container offers nearly double the capacity than its 20 foot counterpart, namely:
- 20 standard pallets per 40ft container. However, optimized loading techniques can make room for one more and give a total capacity of 21 single-stacked pallets.
- 23 Euro-pallets per 40ft container. Optimized arrangements like the pinwheel loading can make room for up to 24 pallets in a single tier.
Standard 40 ft Container Dimensions & Capacity
The standard internal shipping container dimensions of a 40-foot unit are approximately 39′5″ × 7’9″ × 7′10″ or, in the metric system, 12.03 x 2.35 x 2.39 m (L x W x H), with a capacity volume of 2,390 ft³ ≈ 67.7 m³.
An empty shipping container weighs around 8,270 lbs / 3,750 kg (standard) to 8,818 lbs / 4,000 kg (high cube), depending on its construction and manufacturer.
How Many Pallets Fit In A 40ft Reefer Container?
The pallet capacity in a 40ft reefer container is slightly smaller than a dry 40 footer. That’s because of the added insulation that narrows a reefer’s interior space. To make the most out of your capacity here, you’ll need to apply special loading configurations.
A 40-foot reefer container can fit:
- 20 standard U.S. pallets (48″ × 40″) in a single stack, loaded in two rows of 10 pallets, with the 40-inch side facing the container’s side walls.
- 23 EUR-pallets (1,200 mm × 800 mm) in a single stack, loaded with the 1,200 mm side facing the front and back of the container, and arranged using a very tight staggered or pinwheel configuration to maximize space.
More considerations when loading a 40ft reefer:
In reefer containers, proper air circulation is essential. So, you must leave sufficient space between pallets and container walls to allow cold air to flow.
In addition, you need to keep in mind that the reefer’s refrigeration unit and insulation add weight, reducing maximum payload capacity. So, for example, even if there’s space for 23 Europe-standard pallets, heavy goods may reach the weight limit before the container is full.
How Many Boxes Fit On A Pallet?
There’s no set number of boxes or crates that fit on a pallet. Since freight dimensions vary, you can use different box sizes and stacking arrangements when palletizing a shipment.
Carriers don’t mandate specific carton sizes, but they do expect a proper fit for stability and safety. That’s why they often reference freight box dimensions that are modular sub-multiples of a pallet’s length and width, allowing for flexible and efficient stacking configurations.
As long as the cartons are durable, minimize wasted space, and, most importantly, don’t overhang the pallet, they’re considered acceptable.
Still, some dimensions are used far more often than others:
Pinwheel Loading: Fitting More Pallets in a 40ft Container
Straight loading, pallets placed in simple rows, is the default and the easiest to plan around, but it isn’t the most space-efficient option for every cargo type.
Pinwheel loading arranges pallets at alternating angles around the container’s width instead of straight rows, filling the corner gaps that straight loading leaves empty. Done well, it can push a 40ft container’s single-tier capacity toward 24 pallets instead of the 20 to 21 you’d get with a straight layout. The tradeoff is that it takes a more experienced loading crew and works best with uniform pallet sizes, since mixed dimensions make the angled arrangement harder to execute cleanly.
It’s worth asking your freight forwarder or consolidator whether pinwheel loading applies to your cargo, especially on LCL shipments where every extra pallet of space directly reduces your per-unit cost.
Can You Double-Stack Pallets in a Container?
Yes, but only when two conditions are both true: the stacked height stays under the container’s internal clearance, and the combined weight doesn’t exceed the container’s maximum payload.
A standard container’s internal height runs about 7’10”, so two pallets stacked together, plus their cargo, need to clear that limit with some margin for handling. Weight is usually the tighter constraint. A 40ft container tops out around 67,200 lbs including the container’s own tare weight, and heavy goods can hit that ceiling well before the floor space runs out, making double-stacking pointless for anything beyond light or medium-weight cargo.
Fragile or irregularly shaped goods are also poor candidates for double-stacking regardless of weight, since the bottom pallet bears the full weight and shifting risk of everything above it for the entire voyage.
Common Box Sizes For U.S. Standard Pallets
- 16″ x 12″ / 406 mm × 305 mm box (or similar variations) – particularly versatile for a variety of products.
- 20″ x 16″ / 508 mm × 406 mm box (or similar variations) – well-suited for bulkier but lighter items.
Common Box Sizes For Euro Pallets
- 23.6″ x 15.7″ / 600 x 400 mm – a quarter the size of a Euro pallet – and a popular box and crate size that makes palletizing more efficient.
- 31.5″ x 23.6″ / 800 x 600 mm – also known as a “half-pallet” box, less common than its smaller counterpart.
Trying To Make The Numbers Fit? Ship4wd Simplifies Shipping
No matter how many pallets or boxes you’re shipping, the real goal is to move goods safely, efficiently, and on time.
That’s where Ship4wd steps in. With guaranteed container allocation, transparent pricing, and 24/7 human support, you can manage every FCL, LCL, or air shipment from one simple dashboard.
Ship4wd takes the complexity out of global logistics, helping you ship faster and smarter. Get started today.