I think that is plenty of room.Help me please guys and girls. I am pulling my hair out trying to figure out what size coop to build for my 16 silkie hens and 1 rooster. They are currently sleeping in a small coop thats from the grow out pen. They have plenty of room to pile at night (but just enough room). They have a 10X10 covered run and 20X20 extra run thats not covered. I know they say silkies and bantams in particular can get by with less space but I dont want them cramped up either. I want them to have enough room but not go overboard. What does everyone suggest ?
23 square feet per bird in the run and almost 6 square feet in the coop is a whole lot. Especially since the run is covered.
More is always better, but you have lots of room. I do think you need an extra rooster. You should ALWAYS have a backup boy

Plus one silkie rooster will have a hard time keeping 16 hens fertile.