A 20 foot container will usually hold 8 to 10 pallets depending on the orientation.
A 20 foot container is typically 20ft (6.06m) Long, 8ft (2.44m) wide, 8ft 6in (2.6m) in height.
A standard pallet is 4ft (48 inches) by 3.33ft (40 inches).
How many pallets can fit in a 40 foot container? Find out here