I dont really like reviews from the coop websites.... they arent going to post the bad reviews. For some Flocks, I'm sure it's fine. But, you have brahma 's.... they will get large! If you had bantams, or a smaller breed, I'm sure that 5 might work in one. I'm only speaking from my experience and your chicken breed of choice.... a smallish plastic coop will be TIGHT. Look into a prebuilt one by the amish. I know or at least seen where you posted about those. They are roomier. But you will need one at the very least, 4x8. I'm really not trying to be difficult, but happy birds make for better egg production, and less time dealing with problems like bullies, feather picking, disease.... the list goes on.