Between 6 and 7 gauge. 6 is thicker at .194 inch. 7 is thinner at .179 inch.
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.
6 gauge steel is 0.2031 inches thick (USG).
Between 6 and 7 gauge. 6 is thicker at .194 inch. 7 is thinner at .179 inch.
19 gauge steel is 1.11 mm thick and 20 gauge is .953 mm thick.
thick
11 gauge steel is 0.125 inches thick.
3/16" or 0.1875" *** 7 gauge steel sheet is .1793", not .1875" *** Different metals have different thickness for their gauge...mild steel is .1793, aluminum is .1443, stainless steel is .1875
16 gauge
17 gauge = 1.422 mm
18 gauge steel is typically 0.0478 inches thick.
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.