How Many Pallets Fit in a Shipping Container?

A standard 20ft shipping container fits about 10 standard GMA pallets (48×40 inches) in a single layer, and a 40ft container fits about 20–21. If your cargo can be safely double-stacked, those counts roughly double — the real limits are cargo height, total weight, and how the pallets are oriented on the floor.

The math behind the numbers

The standard GMA pallet used across US supply chains measures 48 inches by 40 inches. A shipping container's interior width is about 7'8" — roughly 92 inches. Two pallets fit side by side on their 40-inch dimension (80 inches total), but two 48-inch dimensions (96 inches) do not. That four-inch shortfall is why loading orientation matters so much.

A 20ft container offers a little over 19 feet of usable interior length; a 40ft offers a little over 39 feet. Divide that length by the pallet footprint in whichever direction it faces, and the counts above fall out of the geometry.

Straight loading vs pinwheel loading

Straight loading places every pallet in the same orientation, two rows down the length of the container. It is the fastest pattern to load and unload with a forklift, but it leaves unused inches at the back wall.

Pinwheel loading rotates some pallets 90 degrees to recover that wasted space. In a 20ft container, a pinwheeled pattern is how you reach about 10 pallets instead of 8. In a 40ft, mixed orientation is how loaders get to about 21 rather than 18–20. The trade-off is slower handling, since the forklift's approach changes from pallet to pallet.

Single stack vs double stack

Floor count is only half the story. If your palletized goods are rigid, evenly loaded, and strong enough to carry a second pallet, double-stacking roughly doubles capacity. A standard container's interior height is about 7'10", so two loaded pallets must fit within that; a high cube adds about a foot of headroom, which is often the difference that makes double-stacking workable.

Watch the weight, though. Dense products — beverages, tile, paper — can hit the container's rated payload well before the floor or ceiling runs out. Always check total cargo weight against the container's payload rating, not just the floor plan.

Pallet capacity by container size

If you're weighing the two main sizes against each other, our 20ft vs 40ft comparison covers the cost-per-pallet logic, and the full shipping container size guide lists interior dimensions for every type.

The short version

A 20ft container holds about 10 GMA pallets single-layer and a 40ft holds about 20–21, with pinwheel loading squeezing out the last spots and double-stacking roughly doubling counts when height and weight allow. High cubes add about a foot of headroom that often makes stacking practical. Browse 20ft containers or 40ft containers, get a free guaranteed-lowest-price quote to buy, rent, or rent-to-own, and we'll deliver to your site in 3–7 business days.