[EricH]

Thinwall square tubing for stuff that doesn't need to take hits. Our shooter frame last year was mainly 3/4" square x 1/16" thick tubing, save for the support frame for the drive for the shooting wheel (1" square x 1/16", IIRC.) Problem is, you can't take much weight off. (But it will hold up as well as L-angle, 1x1x1/8, at least for some purposes, and weigh less.) Wouldn't reccomend it for the drive frame, though.