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Old 07-22-2013, 02:28 PM   #2
shanehutton
2nd Gear Member
 
Join Date: Mar 2010
Location: Toronto, ON
Posts: 110
18 - 20 would work. Thicker if you are cutting out big sections and wanting rigidity. If you can get your hands on some gas it will be a much nicer welding job.

Metal Supermarket is a safe bet for the metal.
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