I always recommend to build the biggest that you can afford.
I've got a new 8X8 coop and it cost just under $1,000. It's good and sturdy, but cost of windows and foundation aren't included in that total because I already had them.
My coop was built so that it could be converted to a garden storage shed that can't be broken into easily.. It is also built so that it can be lifted up with a fork lift and placed onto a flat bed and moved. Snow load can be heavy, so it's got a sturdy roof with trusses and metal truss plates. That added to the cost. It was over $100 for the truss plates.
Also, the coop matches the house. You can build a lot cheaper if you don't care what your yard looks like.
One last recommendation" make it tall enough so you can stand up inside it.
I've got a new 8X8 coop and it cost just under $1,000. It's good and sturdy, but cost of windows and foundation aren't included in that total because I already had them.
My coop was built so that it could be converted to a garden storage shed that can't be broken into easily.. It is also built so that it can be lifted up with a fork lift and placed onto a flat bed and moved. Snow load can be heavy, so it's got a sturdy roof with trusses and metal truss plates. That added to the cost. It was over $100 for the truss plates.
Also, the coop matches the house. You can build a lot cheaper if you don't care what your yard looks like.
One last recommendation" make it tall enough so you can stand up inside it.