Anyone work with HVAC??

My BP room is mostly done, I just need to do the drop ceiling - so the next project is my filtration system.

I'm in need of some duct work, and of course Lowes, Rona and Home depot don't sell it. They only sell some of the connections etc.

Does anyone know of a HVAC shop that sells ductwork to the public? I live near Vaughan Mills/Canada's Wonderland.

I'm in need of this setup, or something similar:

http://i750.photobucket.com/albums/x...psd7cd79d8.jpg
setup not to scale

I wish you were closer to Texas, I insure a company that builds duct work. You can also see if a local sheet metal shop could build them for you, same tools are used for both.

I found someone locally who knows a shop :) Thank you though !!!