CORD DIAMETER CHART
Type of Cord AWG Size 3 Conductor 4 Conductor 5 Conductor
SJ, SJO, SJT, SJTO 18
16
14
12
10
.300-.340"
.330-.360"
.360-.400"
.430-.480"
.570-.640"
.330-.370"
.350-.400"
.390-.440"
.470-.520"
.630-.700"
 
S, SO, SOW, SOW-A
ST, STO
18
16
14
12
10
8
6
4
.360-.400"
.390-.430"
.520-.580"
.590-.660"
.650-.720"
.830-.930"
.970-1.100"
1.130-1.280"
.390-.430"
.410-.460"
.560-.620"
.640-.710"
.700-.780"
.930-1.050"
1.050-1.200"
1.250-1.450"
.460-.510"
.490-.550"
.630-.710"
.700-.770"
.760-.840"
1.000-1.150"
1.180-1.330"

All dimensions are approximations. Diameters differ from manufacturer to
manufacturer. Refer to manufacturers specifications for accurate dimension.