Is 20 gauge OK for general body patches?

Can't find my notes of measurements I took off the original metal, just remember it was closest to the 20 range so that's what I went with. Also, the floor pans I got from Year One measured in 20 range. ​
Keep in mind it has a tolerance (chart below). I bought a sheet of 20 from a local sheet metal supplier. Just measured what is left of it .035, so pretty much nominal. Your results may vary.:rolleyes:

steel_sheet_metal_tol.jpg