If you're diving into a container project, you’ve probably seen codes like 22G1 or 45G1 thrown around. But what do they actually mean? And how do different container types affect your modification plans?
At The Container Guy, we work with every kind of container imaginable. Here’s a breakdown of the most common container sizes, types, and the codes you’ll see when shopping or modifying.
The first character in the ISO code refers to the length of the container. 1 = 10', 2 = 20', 4 = 40', 5 = 45', M = 48'. The second character refers to the height of the container. 2 = 8'6", 5 = 9'6". The last two characters refer to the type of container. G1 = general purpose, R1 = refrigerated, U1 = open top, P1 = platform container, T1 = tank container.
Example ISO Codes
20-Foot Standard (22G1)
- External Dimensions: ~20’ L x 8’ W x 8’6” H
- Code to Know: 22G1: 2 = 20' length, 2 = 8'6", G1 = general purpose
20-Foot High Cube (25G1)
- External Dimensions: ~20’ L x 8’ W x 9’6” H
- Code to Know: 22G1: 2 = 20' length, 5 = 9'6" height, , G1 = general purpose
40-Foot Standard (42G1)
- External Dimensions: ~40’ L x 8’ W x 8’6” H
- Code to Know: 42G1: 4 = 40', 2 = 8'6", G1 = general purpose
40-Foot High Cube (or 45G1)
- External Dimensions: ~40’ L x 8’ W x 9’6” H
- Code to Know: 45G1: 4 = 40', 5 = 9’6”, G1 = general purpose
10-Foot Container (10G1)
- External Dimensions: ~10’ L x 8’ W x 8’6” H
- Code to Know: 12G1: 1 = 10', 2 = 8’6”, G1 = general purpose
