Each section is 22 Ga., 10’ long
5.5” x 8.5” with a 1” lip
Figure around $80-$90 per 10’ section (2 pieces) for the steel. Plus, insulation, glue, screws, strut, cushion clamps, nipples, couplings, hole saws, etc.
Look closely at the pics and you’ll notice the top and bottom are identical...