Cargo shipping by sea freight takes any of the following three routes:

Full container load
LCL – less than container load or groupage container
non-containerised packages.
The goal of the importer is to minimise overall costs and maximise profit. However, costs and profits are not the only determinants that guide the choice of shipping methods. There are other factors like speed or urgency, simplicity of the process and consignment or cargo size. So, in the nutshell, the importer’s choice of shipping method could be influenced by any of the following factors:

Cost and profit
Time
Size of shipment
Security and risks of damage
Complexity and flexibility, or simplicity of the process
In this article, we will compare the full container load and the less than container load in terms of cost, cargo size and time. The container could be 20 feet or 40 feet size, depending on commodity and quantity. Some items like foodstuff to Nigeria are mainly marked to be carried with a 20 feet container.
https://www.clearingandforwardingnigeria.com/container-shipping-better-than-lcl-nigeria/