How Many Pallets Fit in a 20ft and 40ft Container? Export Loading Guide

Quick answer: a 20 ft container holds about 10–11 standard 1200×1000 mm pallets in a single layer (roughly 22 double stacked), while a 40 ft container holds 20–25 pallets single stacked and up to 50 double stacked, depending on pallet footprint and stacking height. Whether you can actually ship that many depends less on floor space than on two other limits: container payload and the stacking strength of your pallets. This guide gives you the exact counts for the most common pallet sizes, explains why weight is usually the real constraint, and lists the loading mistakes that cost exporters money every week.

Quick Answer: Pallet Counts by Container and Pallet Size

The table below shows typical floor-loaded counts for the three pallet footprints most factories export on. Counts assume standard 20 ft (internal 5.90 × 2.35 m) and 40 ft (internal 12.03 × 2.35 m) dry containers, pallets loaded without overhang, and the common turning patterns used by loaders.

*Double stacking requires pallets with sufficient static (stacked) load capacity and stable unit loads. If you are still deciding between pallet styles for export, our plastic pallet FAQ hub answers the most common specification questions.

Standard Container Internal Dimensions You Should Memorize

Every loading plan starts with the internal dimensions of the box. Nominal container sizes (20 ft, 40 ft) describe the exterior; the usable interior is smaller because of wall ribs and door frames.

• 20 ft dry container: approx. 5.90 m long × 2.35 m wide × 2.39 m high; payload up to about 28,200 kg, but practical road-limited payload is far lower (see below)
• 40 ft dry container: approx. 12.03 m long × 2.35 m wide × 2.39 m high; payload about 26,500 kg
• 40 ft high cube (HC): same floor as a 40 ft, but 2.69 m high — the extra 30 cm frequently allows a third stacking layer for strong plastic pallets

Note that a 40 ft container has almost exactly twice the floor area of a 20 ft, which is why single-layer pallet counts simply double. The 20 ft exists mostly for heavy, dense cargo that would cube out before weight limits in a larger box.

How Pallet Footprint Decides the Count

1200×1000 mm pallets

This is the dominant industrial footprint in Asia and fits the 2.35 m container width almost perfectly: two 1000 mm sides span 2000 mm with 350 mm left over, so loaders usually place one row “wide” and then fit an extra pallet turned 90° where the width allows. That is why the realistic 20 ft count is 10–11 rather than a clean number. In a 40 ft, 22–23 is the norm, and disciplined loaders consistently reach 23.

1200×800 mm (EUR) pallets

The narrower 800 mm dimension lets you interlock rows — a “pinwheel” pattern fits 11 pallets in a 20 ft and a full 25 in a 40 ft with no wasted side gap. If you ship to European customers, matching their EUR footprint also removes their re-palletizing cost at destination.

1100×1100 mm pallets

Common in beverage and chemical logistics, the square footprint leaves an awkward 150 mm strip at the container wall, so 20 ft count drops to 9–10. The trade-off is better stability for drums and IBCs. For a deeper comparison of footprints and how they map to racking and truck decks, see our guide on plastic pallet sizes and ISO standard dimensions.

48×40 inch (GMA) pallets

North American buyers receiving 1219×1016 mm pallets should plan on 10 per 20 ft layer and 20–22 per 40 ft layer. The pallet is slightly longer than the metric 1200×1000, which occasionally forces one fewer pallet per row when loads sit tight against the doors.

Single vs Double Stacking: Where the Cube Really Comes From

Floor-loaded single layers waste most of the container height: a 150 mm pallet with a 1 m load occupies only half of a 20 ft container’s cube. The single biggest lever in export logistics is therefore stacking unit loads two (or even three) high.

Whether you can double stack safely depends on the pallet’s static load rating — the load a pallet can carry while stacked under other loaded pallets, typically 4–6 tonnes for well-designed plastic pallets versus their 1–1.5 tonne dynamic rating. Three factors decide it:

• Deck stiffness: unsupported deck spans creep under long-term load. Closed-deck or reinforced-beam plastic pallets resist creep far better than thin open decks. For loaded storage and stacking behaviour in general, our racking load ratings guide explains static, dynamic and rack load in detail.
• Load rigidity: cartons in shrink wrap stack as a rigid block; soft bags do not. Double stack only unit loads that hold their shape.
• Interlocking: some plastic pallets have defined stacking features (locating rings or corners) that stop upper pallets sliding — worth specifying for sea freight, where ship rolling multiplies lateral forces.

Weight Is Usually the Real Limit, Not Floor Space

This is the mistake that generates surprise demurrage bills. A 20 ft container is rated to about 28,200 kg payload, but the road legal limit in most destination countries caps the whole truck at 40–44 tonnes, leaving a practical container payload of 24,000–26,000 kg in Europe and often 17,000–21,000 kg in markets with older road regulations. Indonesia, the Philippines and parts of Africa commonly work to 20–24 t per 40 ft.

Do the math before you plan stacking: 23 pallets at 800 kg net goods each plus pallet weight (plastic pallets run 15–25 kg, wooden ones 20–25 kg) is already 18–19 tonnes. If your cargo is dense — liquids, resins, ceramics — you will fill the weight limit with a half-empty box, and buying “more pallets per container” is irrelevant. If your cargo is light but bulky, cube is the limit and every stacking layer counts. Our plastic vs wooden pallet comparison covers how pallet weight itself shifts the payload equation.

Practical Loading Tips That Protect Your Freight

• Plan the pattern before the truck arrives. Send your loader the exact turning plan (how many pallets rotated 90°) — a photo of the floor pattern saves 30–60 minutes of trial and error.
• Zero overhang. Even 20 mm of overhang transfers the load to the pallet edge and the container wall, crushing cartons and risking pallet cracks. Underhang of 30–50 mm is safe.
• Use airbags or straps between stack layers. Ship rolling turns unsecured double stacks into Dominoes. Inflate dunnage bags in the side gaps (the 100–350 mm strips left by the turning pattern) to lock the load.
• Face strong pallets to the doors. Door-end pallets take fork-impact and door-closure loads; put your stiffest, best-condition pallets there.
• Photograph every layer before closing. If a claim happens, layer photos of both pallet condition and load securing are what insurers actually accept.
• Mind temperature. Containers on deck reach 60°C+ in tropical transit. HDPE softens slightly above 60°C — stack one layer lower for summer shipments to the Gulf if your loads are near the pallet’s limit.

Common Mistakes That Cost Exporters Money

• Planning with nominal pallet size. A “1200×1000” pallet that actually measures 1210×1015 destroys a 23-pallet pattern. Ask for the true moulded dimensions including rim lips.
• Ignoring pallet height variance. Mixed pallet heights in a stack concentrate the load on the tallest corners.
• Double stacking nestable pallets loaded with goods. Nestable pallets save return-freight space when empty, but their decks are not designed to carry a stacked loaded pallet on top.
• Forgetting the 20 ft door opening. The door aperture is 2.28 m wide — wider loads fit the box but not the doorway.
• Assuming wooden pallet rules apply to plastic. Plastic pallets are dimensionally more consistent (an advantage for tight patterns), but their strength drops at elevated temperature, which wood does not.

Frequently Asked Questions

How many 1200×1000 pallets fit in a 20 ft container? A realistic count is 10–11 pallets per single floor layer: ten in a straightforward pattern, eleven if the loader turns the right mix of pallets 90° to use the 2.35 m width fully. Double stacked, the same container carries 20–22.

How many pallets fit in a 40 ft container? A 40 ft dry container takes 20–23 pallets of 1200×1000 mm in one layer (25 for 1200×800 mm EUR pallets with pinwheel loading), and a 40 ft high cube can take double that, roughly 44–50, when unit loads are stackable and payload limits allow.

Can I double stack loaded pallets in a shipping container? Yes, if three conditions hold: the pallet’s static load rating exceeds the weight of the pallet plus load above it, the unit load is rigid (shrink-wrapped cartons, not soft bags), and the stack is secured with airbags or lashing. Sea transit rolling makes unsecured stacks unsafe even when the rating math works.

Why do I reach the weight limit before filling the container? Most destination countries cap truck gross weight at 40–44 tonnes, which leaves a practical container payload of about 24–26 tonnes in Europe and often less in developing markets. Dense cargo fills that allowance while occupying only half the container’s cube, so weight — not floor space — becomes the binding constraint.

Key Takeaways

• Plan on 10–11 (20 ft) and 22–25 (40 ft) pallets per single layer, then get your real gains from double stacking in a high cube.
• Check payload against destination road limits before optimizing the floor pattern.
• Verify true moulded pallet dimensions, static load rating and stacking features before committing to a loading plan.

Loading a full container for export? LSY Plastic manufactures injection-molded logistics and hospitality products from 180T to 2500T machines in Foshan, China, with a 20,000 m² warehouse and full-container export experience. Contact us on WhatsApp +86 19311059570 or email fstyx01@lsyplastic.com for specifications, load ratings and full-container export pricing.