Print sizes (A0, Letter, Legal, NTS map sheet)

I needed to show a client how large an A0 print is compared to standard 1:50,000 scale Canadian topographic map sheets (NTS). Wikipedia has a nice render of the A0 sizes:
http://en.wikipedia.org/wiki/File:A_size_illustration2_with_letter_and_l...

Here is the NTS referenced (click for large SVG version):