Looks great to me. You said this is a 5 ft by 5 ft? It looks large enough for you to walk into for cleaning. That is so helpful. It's a larger version of the mini coop I built for my littles. My rooster will be moving in as soon as the littles are integrated with the old hens.
Sorry I couldn't get back to your thread sooner. OK, our climates are similar, however, I believe your winters last a wee bit longer than northen Massachusetts. That said. A 5 x 5 foot coop is plenty of room for 3 chickens. However, if you are able, I would go a bit bigger. Not because of your...
How many chickens do you have? Your location is needed to determine any climate related issues. How is the predator population? These are important questions to address when building housing for your birds.