Lower steel gauges are stronger, thicker, and more expensive.
Commercial applications, like restaurant and hotel trolleys, usually request stainless steel of gauge 14, which is about 2 mm thick.
Commercial and medical lab trolleys need to be more durable, so thicker sheet metal is used.
Meanwhile, personal residential trolleys tend to be 16 or even 18 gauge stainless steel, which is equivalent to 1.3-1.6 mm in thickness.
This is because residential trolleys tend to be elegant and aesthetic rather than heavy-duty functional.
