Big Box garage cabinet systems are simply not suitable for much more than placing them in a single location and never moving them. Some of them may have wheels, but these simple bolt on accessories do not do anything to add rigidity to the case. The first time moving them on to a trailer is attempted, they are likely to bend, twist and potentially break depending on how they are loaded.
Garage Fabricators cases are designed with mobility in their DNA. They have been through extensive testing loading in and out of trailers and in rough, abusive environments. They are designed for the active owner, and they will stand up to the abuse!