Yes, where are you located? Always go bigger, chicken math is real, and you won't really have room for additions with a 4x6 coop. I started with 3, then got 3 more, then just added 4 more (1 was a cockerel so he found a new home), that is over a 2 year span. Also when you have more space it helps keep the peace per say, i.e. integration, separation (for whatever reason) broodies, the list goes on and on. And my personal preference is a walk in coop hands down. I had to hunch and bend to clean my first coop, never again!