There are two common internal sizes for 40-foot containers:

　　40' Dry Container:

　　The inner length is about 12.032 meters

　　Inside width about 2.352 meters

　　Inside height about 2.393 meters

　　40' High Cube Container:

　　The inner length is about 12.032 meters

　　Inside width about 2.352 meters

　　Inside height about 2.698 meters

　　It should be noted that in actual use, the available interior space may be slightly reduced due to factors such as manufacturing tolerances and corner fittings of the container.