Gauge in plastic sheeting is 100 000th of an inch. So 60 gauge should be 0.0006 inches or 0.015mm
11 gauge steel is 0.125 inches thick.
16 gauge
Probably 25 gauge, which is .556 mm thick. However, 26 gauge is close too, it is .478 mm thick.
They are close but not the same. For example, 14 gauge steel is .0781 inches thick while 14 gauge steel wire is .083 inches thick.
.055"
19 gauge steel is 1.11 mm thick and 20 gauge is .953 mm thick.
thick
11 gauge steel is 0.125 inches thick.
How thick the paint is. A trash bag is .4 mils thick so 60 layers of that plastic would give you some idea of the thickness.
17 gauge = 1.422 mm
16 gauge
.0500 inches.
18 gauge is thicker than 20 gauge. 18 gauge is 1.27 mm thick while 20 gauge is .953 mm thick.
Probably 25 gauge, which is .556 mm thick. However, 26 gauge is close too, it is .478 mm thick.
In Imperial standard (swg), 16 g is 0.064" (1.63mm) thick.
It is .478 mm thick.
4mm sheet metal falls 24 gauge and 25 gauge. 24 gauge sheet metal is 3.175mm (0.125") thick, and 25 gauge sheet metal is 6.35 (0.25") mm thick.