I've ordered 10 pullets that will arive the week of May 21st, from mypetchicken.com. I have a chicken coop that is 6x4 with 3 nest boxes and a 50 lb auto. feeder. Our girls will also have a 16w'x20'lx6'h completely enclosed run (we live in the woods by a lake and have just about every predator you can imagine in our front yard, eagles, fishers, coyotes ect). The run will have 1 foot of hardwire cloth buried underground, my question is can i make the framing of the run with un-treated 2x4's? I've never built anything before and as my darling boyfriend says "this is your thing, I am the lacky, you say the commands and I get it done" I've been reasearching for a while now but the exictement has me confused lol. Do I need the round pole/log things for the run or will the 2x4s be okay???? thank you in advance for all of your help!