The dimensions of a standard pallet are 1000mm width and 1200mm length. If you are in USA you should use 39.37” width and 47.24” length. The internal dimensions of a 20ft container are 2350mm width and 5900mm length. If you are in USA use 7 ft 8.44in width and 19 ft 4.17in length. How many standard pallets fit in a 20FT container? You can fit maximum 10 pcs of standard pallets in to a 20ft container in couple of different container loading plans.