Metal piping for DC

[John Branam]

Thanks everyone for the input. I will have to check on the spiral pipe ducting. There is a company around the corner from my office that manufactures it but I am not sure if they sell to indviduals. I will have to find out though.

[Mike Monroe]

I went to my local HVAC company that installed and services my furnace. They had all a the piping and fittings I needed. What they didn't have they made. I can't tell you the exact gauge but the stuff is stiffer than what the BORGs have.