It is a common mistake to believe that a certain gage of stranded conductor has the same diameter as a "solid", or single strand wire. Here are the various sizes (in inches) listed for the different gages.

Gage No. (Awg)	Diameter of "Solid" or single strand wires	Diameter of Stranded wires (with variations)
6	.162	.184 to .188
8	.128	.145 to .149
10	.120	.116 to .119
12	.081	.091 to .093
14	.051	.072 to .074
16	.64	.058 to .060
18	.040	.047 to .049
20	.032	.038 to .040
22	.025	.029 to .030
24	.020	.024 to .025
26	.016	.019 to .020
28	.013	.016 to .017
30	.010	.012 to .013
32	.008	.009