Making an extension cord for the welder

[Jerry Bransford]

I can't seem to find 8/2 or even 10/2 wire with the usual rubber sheath around it to make a short 10'-15' extension cord for my 220v welder, and I don't want to use Romex. I've called a couple welding shops and they sell complete extension cords for well over $100 but I'm not paying that for 15' of wire and two NE50 connectors. I've also checked with Lowes and Home Depot and they of course look at me like I just arrived from Mars. I would even cut the ends off a 220v dryer extension cord and install the right NE50 plug and receptical on it if I could find one longer than 6'.

Where do I buy 8/2 or 10/2 that is covered like an extension cord? I'd rather buy it locally if I can.