ISO 6346 Size & Type Code

According to ISO 6346 the size and type codes should be displayed together. They form a four character value made up of two characters each representing the size and type.

For example: 20GP is a common size/type code.

  • The 2 indicates that the container is 20' in length
  • The 0 indicates that the container has height and width of 8 feet
  • The GP indicates that the container is a general purpose container

Size

The container size code is made of two alphanumeric characters.

Length code:

Length Character
m ft
2.991 10 1
6.068 20 2
9.125 30 3
12.192 40 4
Unassigned 5
Unassigned 6
Unassigned 7
Unassigned 8
Unassigned 9
7.150 A
7.315 24 B
7.430 24'6" C
7.450 D
7.820 E
8.100 F
12.500 41 G
13.106 43 H
13.600 K
13.716 45 L
14.630 48 M
14.935 49 N
16.154 P
Unassigned R

Height/width code:

Height Width (m)
m ft 2.438 > 2.438
and <= 2.5
> 2.5m
Character
2.438 8 0
2.591 8'6" 2 C L
2.743 9 4 D M
2.895 9'6" 5 E N
> 2.895 > 9'6" 6 F P
1.295 4'3" 8
<= 1.219 <= 4 9

Type

The container type code is made of two alphanumeric characters. The standard defines both group codes and detailed codes. According to the standard the group code may be used where more detailed characteristics are not required.

Group code Group name Detailed codes
GP General purpose G0, G1, G2, G3
VH General purpose with ventilation V0, V2, V4
BU Dry bulk container - nonpressurized B0, B1
BK Dry bulk container - pressurized B3, B4, B5, B6
SN Named cargo S0, S1, S2
RE Thermal container refrigerated R0
RT Thermal container refrigerated and heated R1
RS Thermal container self-powered refrigerated/heated R2, R3
HR Thermal container refrigerated and/or heated with removable equipment H0, H1, H2
HI Thermal container insulated H5, H6
UT Open-top container U0, U1, U2, U3, U4, U5
PL Platform-based container with incomplete superstructure P0
PF Platform container - fixed P1, P2
PC Platform container - folding (collapsible) P3, P4
PS Platform-based container with complete superstructure P5
TN Tank container for nondangerous liquids T0, T1, T2
TD Tank container for dangerous liquids T3, T4, T5, T6
TG Tank container for gases T7, T8, T9
AS Air/surface container A0