20 gauge is one of the commonly used thin aluminum sheets, and the thickness of thin aluminum sheets ranges from 0.15-1.5mm.
Gauge is a unit used to describe the thickness of aluminum plates, 20 gauge = 0.032 inches = 0.813mm.
As shown in the table below: The larger the Gauge Number, the smaller the corresponding inches and the smaller the millimeters, so 20 ga is the minimum thickness.
You can refer to this table to purchase aluminum sheet products of the required thickness.
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