This should be pretty close.
https://www.homedepot.com/p/M-D-Buil...6072/205058572
I would disregard the thickness specified on the website. 28 gauge should be right around 1/64", 0.0156", 0.4mm. If necessary, add a layer of pop can.
For that matter, if you have any furnace or dryer duct remnants lying around, the thickness might be in the ballpark as well.