Looking into framing between the poles on my new 72'x32' pole barn. The poles are 8x8's and the eave height is 16'. Here, I have made a drawing with two 2x4 studs between each pole, outside 2x6 horizontals 36'' on center and I will be using a pressure treated one at the bottom. Should I go with 24'' on center? Or is that necessary? The roof has 26 gauge galvalume but I was told that 28 gauge would be fine for the outside walls. This will mostly be used as a storage/warehouse for my equipment business. Thanks!

